Category: Machine Tools & Machining Objective Questions

250+ TOP MCQs on Lathe : Carriage – 2 and Answers

Machine Tools Multiple Choice Questions on “Carriage-2”.

1. Carriage provides various movements for the cutting tool______
a) manually
b) by power feed
c) manually and by power feed both
d) none of the mentioned
Answer: c
Clarification: These two types of movements are possible in carriage. Carriage provides various movements for the cutting tool.

2. Carriage is the part of lathe which slides over the bed ways.
a) true
b) false
Answer: a
Clarification: This is the function of carriage. It can be locked on the bed at any desired position by tightening the carriage lock-screw.

3. The compound rest may be clamped at_____
a) 0 degree
b) 90 degree
c) 180 degree
d) any degree between 0 and 360
Answer: d
Clarification: Compound rest may be clamped at any required position between 0 and 360 degree. It can be tightened by T-bolts at that position.

4. Which type of feed is always done parallel to the axis of work?
a) longitudinal feed
b) cross feed
c) angular feed
d) none of the mentioned
Answer: a
Clarification: Longitudinal feed is always done parallel to the axis of the work as per the classification of carriage movements.

5. Which of the following assists in feeding the tool to the work?
a) swivel base
b) top slide
c) swivel base and top slide both
d) none of the mentioned
Answer: b
Clarification: Only top slide assists in feeding the tool to the work. We can give manual operation in the top slide.

6. Which type of feed is done with the help of compound slide movement?
a) longitudinal feed
b) angular feed
c) cross feed
d) none of the mentioned
Answer: b
Clarification: Angular feed is done with the help of the compound slide movement positioned at an angle to the axis of the work.

7. In how many parts, carriage can be divided?
a) 2
b) 3
c) 4
d) 5
Answer: d
Clarification: Carriage can be divided in saddle, cross-slide, compound rest swivel and top slide, tool post and apron.

8. Saddle is_____ shaped casting and has_____ guide grooves and flat grooves.
a) H and V
b) V and H
c) H and H
d) V and V
Answer: a
Clarification: Saddle is H shaped casting and has v guide grooves and flat grooves. Saddle is mounted on the spindle.

9. In saddle, grooves are machined at the ______ corresponding to the lathe bed ways.
a) top face
b) middle face
c) bottom face
d) none of the mentioned
Answer: c
Clarification: In saddle, grooves are machined at the bottom corresponding to the lathe bed ways. The surface of the bed in contact with the sliding units of the lathe are known as guideways or slideways or bedways.

10. The cross slide functions_____ to the lathe axis.
a) parallel
b) perpendicular
c) anti-parallel
d) none of the mentioned
Answer: b
Clarification: The cross slide functions perpendicular to the lathe axis. The bottom of the cross-slide has got a dovetail groove machined, which corresponds to the external dovetail machined on the saddle.

250+ TOP MCQs on Lathe : Classification of Cutting Tools and Answers

Machine Tools and Machining Questions and Answers for freshers on “Lathe : Classification of Cutting Tools”

1. Lathe cutting tool can be classified according to_____
a) manufacturing of tool
b) method of holding tool
c) method of using tool
d) all of the mentioned
Answer: d
Clarification: Cutting tool can be classified according to all mentioned parameters. Generally in lathe we use single point cutting tools.

2. Which of the following cutting tool can have single roller?
a) boring tool
b) knurling tool
c) both boring tool and knurling tool
d) none of the mentioned
Answer: c
Clarification: Both boring tool and knurling tool can have single roller. Generally, boring tool is used to enlarge the hole. Knurling is used when we need a pattern of straight, cross and angular lines cutting each other.

3. Lathe cutting tool can be classified as right hand and left hand according to_______
a) method of using the tool
b) method of holding the tool
c) method of applying feed
d) none of the mentioned
Answer: c
Clarification: Lathe cutting tool can be classified as right hand and left hand according to method of applying feed. Here, feed is the distance the tool advances for each revolution of the work.

4. Which of the following is not the type of left hand type cutting tool?
a) roughing tool
b) facing tool
c) finishing tool
d) none of the mentioned
Answer: d
Clarification: All are the types of left hand cutting tool. Facing, roughing and finishing are one kind of turning operations often carried out on lathe.

5. According to the method of using the tool, lathe cutting tool can be classified as_______
a) turning
b) grooving
c) forming
d) all of the mentioned
Answer: d
Clarification: According to the method of using the tool, lathe cutting tool can be classified as turning, grooving, forming, chamfering, internal thread cutting, parting-off and so on.

6. Which of the following is not the type of classification as per the method of manufacturing the tool?
a) tipped tool, which is brazed to the carbon steel shank
b) tipped tool, which is fastened mechanically to the carbon steel shank
c) grooving
d) none of the mentioned
Answer: c
Clarification: Here, grooving is not the type of classification according to the method of manufacturing the tool. Grooving is the type of classification according to the method of using the tool.

7. “Tool bit inserted in the (tool) holder and solid tool” – is included in the classification according to the_____
a) method of using tool
b) method of manufacturing tool
c) method of applying feed
d) none of the mentioned
Answer: d
Clarification: All options are incorrect. Answer should be none of mentioned. It is suitable with the classification of cutting tool as per the method of holding the tool.

8. ‘Internal thread cutting’- is suitable with the classification of cutting tool according to the______
a) method of using the tool
b) method of holding the tool
c) method of manufacturing the tool
d) none of the mentioned
Answer: a
Clarification: It can be easily seen from the classification of cutting tool. Apart from internal thread cutting, boring, facing, forming etc. are also included in this category.

9. ‘Round nose’ – is suitable with the classification of cutting tool according to the______
a) method of holding tool
b) method of holding tool
c) method of the applying feed
d) none of the mentioned
Answer: c
Clarification: It can be easily understood by looking at the classification of cutting tool. Apart from round nose, right hand tool and left hand tool are also included in this category.

10. ‘Parting-off’ – is suitable with the classification of cutting tool according to the______
a) method of manufacturing the tool
b) method of holding the tool
c) method of using the tool
d) none of the mentioned
Answer: c
Clarification: ‘Parting-off’ – is suitable with the classification of cutting tool according to the method of using the tool. This parting uses a blade like cutting tool into workpiece in order to cut the metal at the speed of spindle.

11.The mentioned image indicates_____ tool.
machine-tools-questions-answers-freshers-q11
a) roughing tool
b) facing tool
c) parting tool
d) none of the mentioned
Answer: c
Clarification: The mentioned image indicates parting tool. Its a narrow-bladed tool used in lathe.

12. The mentioned image indicates_____ tool.
machine-tools-questions-answers-freshers-q12
a) round nose grooving
b) round nose turning
c) round corner forming
d) none of the mentioned
Answer: a
Clarification: The mentioned image indicates round nose grooving tool. Round nose froove tools are used for finer surface finish.

13.The mentioned image indicates_____ tool.
machine-tools-questions-answers-freshers-q13
a) round nose grooving
b) round nose turning
c) round corner forming
d) none of the mentioned
Answer: b
Clarification: The mentioned image indicates round nose turning tool. This tool is used in turning in lathe.

14. The mentioned image indicates______ tool.
machine-tools-questions-answers-freshers-q14
a) right handed finishing
b) round nose
c) right handed roughing
d) none of the mentioned
Answer: a
Clarification: The mentioned image indicates right hand finishing tool. Two types of hand tools are there: right hand finishing hand tool and left hand finishing tool.

Machine Tools and Machining for Freshers,

250+ TOP MCQs on Micro-Mini Drilling Machine and Answers

Machine Tools Multiple Choice Questions on “Micro-Mini Drilling Machine”.

1. Micro drill machine is also known as mini drill machine.
a) true
b) false
Answer: a
Clarification: As per the definition of micro drill machine. As the name suggest micro drill makes very small holes so it is also known as mini drill machine.

2. Micro drill machine means it has height in terms of micrometer.
a) true
b) false
Answer: b
Clarification: It doesn’t have height in terms of micrometers. It is very small that’s why it is termed as micro drill machine.

3. The base of the micro drill is______
a) light
b) heavy
c) very light
d) none of the mentioned
Answer: b
Clarification: The base is generally heavy in this case. To make hole, drill needs a huge downward pressure. To sustain this pressure, base should be heavy.

4. The base of the table is_____ in micro drill machine.
a) free
b) fixed
c) either free or fixed
d) none of the mentioned
Answer: c
Clarification: The base can be either free or fixed base on the job. But it should be strong to withstand high pressure.

5. Which type of motion is possible for drilling head?
a) up
b) down
c) up and down
d) none of the mentioned
Answer: c
Clarification: Drilling head can be moved up and down in order to accommodate with the job.

6. Feed motion can be controlled automatically.
a) true
b) false
Answer: a
Clarification: As per the working of this machine. We don’t need manual support for the control of feed motion. The feed of a drill is the distance the drill moves into work at each revolution of the spindle.

7. If the speed of the drill increases, then the thrust force will______
a) increase
b) decrease
c) remain same
d) none of the mentioned
Answer: b
Clarification: If the speed of the drill increases, then the thrust force will decrease. Here the thrust force is the reaction force explained by newton’s second and third laws.

8. If the speed of the drill decreases, then the torque will______
a) increase
b) decrease
c) remain same
d) none of the mentioned
Answer: a
Clarification: If the speed of the drill decreases, then the torque will increase as the thrust force increases with the decrement in the speed of drill.

9. Which type of work can be done in micro drill machine?
a) fine work
b) electrical work
c) electro-fitting work
d) all of the mentioned
Answer: d
Clarification: All mentioned types of work can be done in micro drill machine. This the application of micro drill machine. In fine work, electrical work, elctro-fitting work we need small holes and for that purpose this machine is used.

10. Micro drill machine looks like a table top drill machine.
a) true
b) false
Answer: a
Clarification: It is similar with table top machine and just small in size then the table top drill machine. So if we compare these machine on the basis of look, we can easily say that micro drill machine looks like a table top drill machine.

250+ TOP MCQs on Shaper Basics – 1 and Answers

Machine Tools Multiple Choice Questions on “Shaper Basics – 1”.

1. In shaper, the tool head consists of_______
a) tool post
b) tool slide
c) clamper box
d) all of the mentioned
Answer: d
Clarification: All mentioned are the parts of tool head. Toolhead of a shaper holds the tool rigidly and provides vertical and angular feed movement.

2. The main parts of shaper are _______
a) base and body
b) ram and tool head
c) crossrail and body
d) all of the mentioned
Answer: d
Clarification: All mentioned are the parts of shaper. Due to these parts, this machine is arranged in such a manner that it can produce flat surfaces easily and perform other operations too.

3. The body of the shaper comprises of ________
a) pillar
b) column
c) frame
d) all of the mentioned
Answer: d
Clarification: All are the parts of shaper. Column and pillar are used to stabilize the machine and are mounted on base. The frame is the basic structure of this machine.

4. The base of the shaper is a heavy cast iron casting.
a) true
b) false
Answer: a
Clarification: As per the construction of the base. It must be made of heavy cast iron casting because the whole machine including pillar, frame, column are mounted on the base. So base must be capable and strong enough to withstand it.

5. Which of the following part of shaper supports the entire load of the machine?
a) base
b) crossrail
c) frame
d) none of the mentioned
Answer: a
Clarification: Base of shaper supports the entire load of the machine. All other parts are mounted on the base. It is the basic foundation of this machine.

6. The base of the shaper is not able to withstand the vibration.
a) true
b) false
Answer: b
Clarification: The base of shaper is able to withstand the vibration. In shaper, reciprocating feed is given so there is always a chance of higher vibration and since the entire machine is mounted on the base it is necessary that this base must be able to withstand vibration for the safety purpose.

7. Drive mechanism consists of ________
a) main drives
b) the gear box
c) quick return mechanism
d) all of the mentioned
Answer: d
Clarification: All are the parts of drive mechanism. Shapers may have drive mechanism or hydraulic mechanism.

8. Quick return mechanism is responsible for ram movement.
a) true
b) false
Answer: a
Clarification: As per the working of quick return mechanism. Whenever there is a need to convert rotary motion into reciprocating motion, quick return mechanism is used.

9. The top of the body provides guideways for______
a) ram
b) crossrail
c) can’t say anything
d) none of the mentioned
Answer: a
Clarification: As per the construction and working of shaper body. Guideways are like a track or path and ram is a reciprocating member of shaper.

1o. Saddle slides along the ram.
a) true
b) false
Answer: b
Clarification: This is false. Saddle slides along the crossrail which holds the table firmly on its top.

250+ TOP MCQs on Milling Indexing and Answers

Machine Tools Multiple Choice Questions on “Milling Indexing”.

1. The indexing is the operation of dividing the periphery of a piece of work into any number of equal parts.
a) true
b) false

Answer: a
Clarification: It is the definition of indexing.It is generally used for milling machine but it has also some application in boring,grinders, drill presses etc.

2. The indexing operation can also be adapted for producing ______ headed bolts.
a) hexagonal
b) square
c) both hexagonal and square
d) none of the mentioned

Answer: c
Clarification: The indexing operation can also be adapted for producing hexagonal and square headed bolts. It is versatility of this method and that’s the reason why it is largely used.

3. In cutting spur gear, equal spacing of teeth on the gear blank can’t be performed by indexing.
a) true
b) false

Answer: b
Clarification:In cutting spur gear, equal spacing of teeth on the gear blank can be performed by indexing.

4. Indexing is accomplished by using a special attachment known as__________
a) dividing head
b) index head
c) both dividing head and index head
d) none of the mentioned

Answer: c
Clarification: Indexing head is also known as dividing head and this driving head is also known as indexing head.

5. The dividing heads are of ____ types.
a) 1
b) 2
c) 3
d) none of the mentioned

Answer: c
Clarification: The dividing heads are of 3 types: universal driving head, optical driving head and plain driving head.

6. Which of the following is not the type of dividing heads?
a) plain dividing head
b) universal dividing head
c) optical dividing head
d) all of the mentioned

Answer: d
Clarification: All plain driving head, universal driving head and optical driving head are the types of dividing heads.

7. Which of the following dividing head is also known as simple dividing head?
a) plain dividing head
b) universal dividing head
c) optical dividing head
d) all of the mentioned

Answer: a
Clarification: Plain dividing head is also known as simple dividing head. It performs simple not too complicated tasks.

8. Which of the following is the most common type of indexing arrangement used in workshops?
a) plain dividing head
b) universal dividing head
c) optical dividing head
d) all of the mentioned

Answer: b
Clarification: As per the application of universal dividing head. It is very versatile and can perform various operation that’s why it is used in industry.

9. Universal index head can be used to execute all form of indexing.
a) true
b) false

Answer: a
Clarification: This is the advantage of this head. Due to its versatility it can perform the tasks of other indexing methods and can execute all form of indexing.

10. Which of the following is the important part of universal head?
a) worm
b) index plate
c) sector arm
d) all of the mentioned

Answer: d
Clarification: Worm, sector arm, index plate, sector arch,sector ram, crank, taper hole, spindle etc. are the main parts of universal head .

11. Which of the following has single start threads in universal dividing head?
a) worm
b) index plate
c) sector arm
d) none of the mentioned

Answer: a
Clarification: As per the construction of universal dividing head, worm has single start threads. It has to allow the spindle to pass through it during the rotation of spindle.

12. In universal dividing head, the worm wheel has 40 teeth.
a) true
b) false

Answer: a
Clarification: As per the construction of worm wheel, worm wheel has 40 teeth for the better function. Taper hole spindle passes through it.

13. The crank is used to rotate the spindle of the dividing head in universal dividing head.
a) true
b) false

Answer: a
Clarification: Crank is used for this purpose. It is the main function of the head. Spindle is passed through the worm and worm wheel arrangement.

14. Rotation of spindle is done through _______ arrangement in universal dividing head.
a) worm
b) worm wheel
c) both worm and worm wheel
d) none of the mentioned

Answer: c
Clarification: Worm and worm wheel arrangement are used for the rotation of spindle but the rotation of spindle starts because of crank arrangement.

15. By linking the worm and worm gear driving mechanism of the attachment with the leadscrew of the table, continuous ______ motion can be imparted to the workpiece.
a) rotary
b) transverse
c) reciprocating
d) none of the mentioned

Answer: a
Clarification: As per working of universal dividing head, continuous rotary motion can be imparted to workpiece for the purpose of helical milling.

250+ TOP MCQs on Manufacturing Process and Answers Quiz

Machine Tools Multiple Choice Questions on “Manufacturing Process”.

1. Which manufacturing process includes the powder metallurgy?
a) casting
b) forming and shaping
c) machining
d) joining

Answer: b
Clarification: Forming and shaping process includes powder metallurgy. Powder metallurgy is a process in which material or shapes are made from or by using metal powders.

2. Which of the following is not included in forming and shaping process?
a) rolling
b) forging
c) sheet forming
d) broaching

Answer: d
Clarification: Only rolling, forging and sheet forming are included in forming and shaping process. Broaching is included in fabrication process.

3. Expendable mold and permanent mold are the parts of ____ manufacturing process.
a) machining
b) casting
c) none of the mentioned
d) joining

Answer: b
Clarification: In casting, we prepare a mould in which we pour liquid metal. Then we solidify the metal and make the product of desired shape with the help of pattern.

4. Casting includes grinding process.
a) true
b) false

Answer: b
Clarification: This is false. Casting doesn’t includes grinding process. Machining process includes grinding process.

5. Brazing is a type of metal joining process.
a) true
b) false

Answer: a
Clarification: It is a metal joining process. It joints the metal by melting and flowing a filler metal into the joint. The adjoining metal has higher melting point compare to filler metal.

6. Which of the following is included in machining process?
a) extrusion
b) soldering
c) drilling
d) coating

Answer: c
Clarification: Drilling is included in machining process. For drilling, the drill is rotated with a downward pressure causing the tool to penetrate into the material.

7. Which of the following processes are included in finishing?
a) honing and welding
b) polishing and lapping
c) coating and milling
d) molding and plating

Answer: b
Clarification: Coating and plating are included in finishing .Welding is included in joining, molding is included in casting and milling is included in machining. Rest all( mentioned ) are included in finishing process.

8. Machining process deals with drawing.
a) true
b) false

Answer: b
Clarification: This is false. Forming and shaping type process include the process like drawing.

9. Which of the following is not the type of finishing process?
a) diffusion bonding
b) burnishing
c) both diffusion bonding and burnishing
d) none of the mentioned

Answer: a
Clarification: Only burnishing is an example of finishing process. Diffusion type bonding is included in the of process of joining.

10. Which of the following is not the type of joining process?
a) adhesive bonding
b) brazing
c) soldering
d) none of the mentioned

Answer: d
Clarification: Adhesive bonding, brazing and soldering all are thetypes of joining process. In adhesive bonding, adhesive are used to manufacture an assembly. Brazing and soldering are also the type of manufacturing process.

11. Which of the following is the type of permanent joining process?
a) welding
b) soldering
c) both welding and soldering
d) none of the mentioned

Answer: c
Clarification: In welding and soldering, once the join has made, we have to break the joint to get different part. So, both welding and soldering are known as permanent joining process.

12. Which of the following is the type of temporary joining process?
a) brazing
b) mechanical joining
c) both brazing and mechanical joining
d) none of the mentioned

Answer: b
Clarification: Brazing is the one type of permanent joining process and mechanical joining is the one type of temporary joining process because we can remove the joint with the help of equipments like some type of bolts and so on. Breaking of joint is not necessary in this case.

13. In ____type of manufacturing process, material is wasted. It is in the form of chips.
a) machining process
b) casting process
c) joining process
d) forming and shaping process

Answer: a
Clarification: In machining process, some raw material is wasted in or in order to perform different operations like drilling, turning etc.

14. A desired speed of _____ can be obtained by selecting the suitable change gears havingproper number of teeth.
A. Lead screw

B. Countershaft

C. Spindle

D. Feed gear box

Answer: A.Lead screw

15. The Lathe carriage serves the following purpose of the tool
A. Guiding

B. Feeding

C. Supporting

D. All of the above

Answer: D.All of the above

16. The following is also known as Tool rest
A. Saddle

B. Cross slide

C. Compound rest

D. Tool post

Answer: C.Compound rest

17. The following is used in Magnetic chucks
A. Electromagnet

B. Permanent magnet

C. Both ‘A’ and ‘B’

D. None of the above

Answer: C.Both ‘A’ and ‘B’

18. The following is used for holding bored parts for machining their outside surfaces onLathe.
A. Mandrel

B. Dogs

C. Driving plate

D. Angle plate

Answer: A.Mandrel

19. The following is used to turn very long job between centers on a lathe.
A. Steady rest

B. Follower rest

C. Compound rest

D. All of the above

Answer: A.Steady rest

20. The following is used to support too flexible job very close to the cutting edge.
A. Steady rest

B. Follower rest

C. Compound rest

D. All of the above

Answer: B.Follower rest

21. Which of the following attachments can be used on Centre lathe?
A. Grinding

B. Milling

C. Copying

D. All of the above

Answer: D.All of the above

22. For correct setting for turning operation in a lathe machine, the tool nose should touch the workpiece _____ horizontal line which is parallel to and at the same level as the axis of correctly centred workpiece.
A. Exactly on a

B. Above the

C. Below the

D. Any of the above

Answer: A.Exactly on a

23. The following is taper turning method on lathe
A. Tail stock set-over method

B. By swivelling the compound rest

C. Using a broad nose tool

D. All of the above

Answer: D.All of the above

24. External threads can be produced by means of
A. Taps

B. Dies

C. Lathe machine

D. All of the above

Answer: D.All of the above

25. The axial advancement in one rotation of the screwed part is known as ____ of the threads.
A. Pitch

B. Lead

C. Pitch diameter

D. Helix

Answer: B.Lead

26. To cut a screw of 3mm pitch on Lathe machine having same speeds of spindle and lead screw, the tool should move, parallel to the axis of the work, a distance of ____ for every revolution of the spindle.
A. 1.5 mm

B. 3 mm

C. 4.5 mm

D. 6 mm

Answer: B.3 mm

27. In cutting Right hand threads, the spindle and lead screw rotates in the
A. Same direction

B. Opposite direction

C. Same or Opposite direction

D. Spindle rotates but lead screw does not rotate

Answer: A.Same direction

28. In lathe, form tools are used to produce
A. Cylindrical surfaces

B. Tapered surfaces

C. The surfaces which are neither cylindrical nor tapered

D. Threads

Answer: C.The surfaces which are neither cylindrical nor tapered

chapter: Drilling Machines

29. Which of the following operation, we can’t perform on drilling machine?
A. reaming

B. tapping

C. lapping

D. none of the mentioned

Answer: D.none of the mentioned

30. Floating holder is included in______ method of tool holding devices.
A. by directly fitting in the spindle

B. by special attachments

C. by a socket

D. none of the mentioned

Answer: B.by special attachments

31. Which of the following method is not used for holding tool?
A. by a sleeve

B. by chucks

C. by a socket

D. none of the mentioned

Answer: D.none of the mentioned

32. We can’t perform grinding operation in a drilling machine.
A. true

B. false

C. none

D. all

Answer: B.false

33. Which of the following device is not used for holding the work in a drilling machine?
A. step block

B. drill jigs

C. both step block and drill jigs

D. none of the mentioned

Answer: D.none of the mentioned

34. In drilling operation, work should be held by hand.
A. true

B. false

C. none

D. all

Answer: B.false

35. The drilling machine is the second most important machine tool in a workshop.
A. true

B. false

C. none

D. all

Answer: A.true

36. The drilling machine was primarily designed to originate a _____
A. flat surface

B. cylindrical surface

C. taper surface

D. none of the mentioned

Answer: D.none of the mentioned

37. For drilling operation, the drill rotates with_____ pressure if job is held on earth.
A. upward

B. downward

C. 45 degree inclined to both planes

D. none of the mentioned

Answer: B.downward

chapter: Boring Machine

38. Tapping attachment is included in_______ method of tool holding devices.
A. by chucks

B. by a sleeve

C. by directly fitting in the spindle

D. none of the mentioned

Answer: D.none of the mentioned

39. What does the boring mean?
A. a process of making a hole in an object

B. a process of enlarging a hole which is already in an object

C. a process of finishing an existing hole very smoothly and accurately in size

D. none of the above

Answer: A.a process of making a hole in an object

40. Which operation can correct hole location, size or alignment of the hole which is already drilled in workpiece?
A. Boring

B. Rimming

C. Both a. and b

D. None of the above

Answer: A.Boring

41. Which drilling machine is used to perform drilling operation on the workpieces which are too heavy and also maybe too large to mount on worktable?
A. Portable drilling machine

B. Sensitive drilling machine

C. Radial drilling machine

D. none of the above

Answer: C.Radial drilling machine

42. The effect of setting a boring tool above center height leads to
A. Increase in the effective rake angle and a decrease in the effective clearance angle

B. Increase in both effective rake angle and effective clearance angle

C. Decrease in the effective rake angle and an increase in the effective clearance angle

D. Decrease in both effective rake angle and effective clearance angle

Answer: A.Increase in the effective rake angle and a decrease in the effective clearance angle

43. In which of the following machine, the work rotates and the tool is stationary?
A. Vertical boring machine

B. Horizontal boring machine

C. Precision boring machine

D. Jig boring machine

Answer: A.Vertical boring machine

44. The process of chamfering the entrance of a drilled hole is known as_____
A. counter-boring

B. counter-sinking

C. counter-fillet

D. trepanning

Answer: B.counter-sinking
45. On drilling machine, which process is known as reaming?
A. Enlargement of existing hole

B. Hole made by removal of metal along the hole circumference

C. Smoothly finishing and accurately sizing a drilled hole

D. All of the above

Answer: C.Smoothly finishing and accurately sizing a drilled hole

chapter: Milling Machines

46. During milling, the cutter usually moves
A. Perpendicular to its axis

B. Parallel to its axis

C. Inclined to its axis

D. Any of the above

Answer: A.Perpendicular to its axis

47. The speed at which the piece advances through the cutter is called
A. Cutting speed

B. Feed rate

C. Depth of cut

D. None of the above

Answer: B.Feed rate

48. In _____, the cutting action occurs primarily at the end corners of the milling cutter.
A. Face milling

B. Peripheral milling

C. Both (A) and (B)

D. None of the above

Answer: A.Face milling

49. Peripheral milling is well suited to the cutting of
A. Deep slots

B. Threads

C. Gear teeth

D. All of the above

Answer: D.All of the above

50. A milling cutter may have surfaces made of
A. High speed steel

B. Cemented carbide

C. Aluminium oxide

D. Both (A) and (B)

Answer: A.High speed steel

51. The use of coatings on milling cutters will increase the ____ of the tool.
A. Surface hardness

B. Corrosion resistance

C. Surface finish

D. Melting point

Answer: D.Melting point

52. Following coating(s) is (are) for milling cutters
A. Titanium nitride (TiN)

B. Titanium Carbonitride (TiCN)

C. Aluminium Titanium Nitride (AlTiN)

D. All of the above

Answer: B.Titanium Carbonitride (TiCN)
53. Gang milling refers to the use of two or more milling cutters mounted on the ____ arbor in a____ milling set up.
A. Same, vertical

B. Same, horizontal

C. Different, vertical

D. Different, horizontal

Answer: A.Same, vertical
54. Following is (are) the type(s) of vertical mill
A. Bed mill

B. Turret mill

C. Both (A) and (B)

D. None of the above

Answer: D.None of the above
55. A turret mill has a ____ spindle and the table is moved ____ to the spindle axis to accomplishcutting.
A. Stationary, perpendicular

B. Moving, parallel

C. Stationary, both perpendicular and parallel

D. Moving, perpendicular

Answer: C.Stationary, both perpendicular and parallel
56. In the bed mill, the table moves ____ to the spindle’s axis
A. Only parallel

B. Only perpendicular

C. Both perpendicular and parallel

D. Inclined

Answer: B.Only perpendicular
57. Following milling machine is used to cut gears
A. Horizontal milling machine

B. Vertical milling machine

C. Both (A) and (B)

D. None of the above

Answer: A.Horizontal milling machine
58. Following type of gear(s) can be cut on milling machine
A. Worm

B. Spiral bevel

C. Spur

D. All of the above

Answer: D.All of the above
59. Jig borer are
A. Built to bore holes

B. Very light slot or face milling

C. Typically bed mills with a long spindle throw

D. All of the above

Answer: D.All of the above
60. Most CNC milling machines are
A. Computer controlled vertical mills

B. Used in diesinking

C. Used in engraving applications

D. All of the above

Answer: D.All of the above
61. Pocket milling is extensively used in
A. Aerospace industry

B. Shipyard industry

C. Both (A) and (B)

D. Agriculture industry

Answer: C.Both (A) and (B)
62. In end mill cutter, flutes of the milling bit are
A. Deep helical grooves running up the cutter

B. Sharp blade along the edge

C. Holes

D. None of the above

Answer: A.Deep helical grooves running up the cutter
63. In end mill cutter, chips are pulled up the
A. Flute

B. Tooth

C. Tip

D. Shank

Answer: A.Flute
64. End mills have cutting teeth
A. At one end

B. On the sides

C. Both (A) and (B)

D. None of the above

Answer: C.Both (A) and (B)
chapter:
Planers, Shapers and Slotters
65. Reciprocation of the cutting tool in shaping machines is accomplished by.
A. Rack pinion mechanism

B. Crank and connecting rod mechanism

C. Cam and cam follower mechanism

D. Oscillating lever mechanism

Answer: A.Rack pinion mechanism
66. Internal keyway in gears can be cut in
A. Shaping machine

B. Planning machine

C. Slotting machine

D. None of the above

Answer: C.Slotting machine
67. The job reciprocates in
A. Shaping machine

B. Planning machine

C. slotting machine

D. All of the above

Answer: D.All of the above
68. The T-slots in the table of planning machines are cut in.
A. Shaping machine

B. Planning machine

C. Slotting machine

D. None of these

Answer: D.None of these
69. Flat surface can be produced in
A. Shaping machine only

B. Planning machine only

C. Slotting machine only

D. All of the above

Answer: D.All of the above
70. Large number of cutting tools can be simultaneously used in.
A. Shaping machine

B. Planning machine

C. Slotting machine

D. None of these

Answer: D.None of these
71. Heavy cuts can be given during machining in
A. Shaping machine

B. Planning machine

C. Slotting machine

D. None of these

Answer: C.Slotting machine
72. Slotting machines are used to cut internal gear teeth for
A. Batch production

B. Lot production

C. Mass production

D. None of these

Answer: C.Mass production
73. The work-table can rotate in
A. Shaping machine

B. Planning machine

C. Slotting machine

D. None of these

Answer: C.Slotting machine
74. Length of the stroke can be varied in
A. Shaping machine

B. Planning machine

C. Slotting machine

D. All of these

Answer: D.All of these
chapter:
Sawing and Broaching Machines
75. What is broaching?
A. A machining process used for increasing the size of the existing hole

B. A machining process used for grinding hardened steel

C. A machining process used for making intricate holes accurately

D. A machining process for removal of a layer of material of desired width and depth

Answer: D.A machining process for removal of a layer of material of desired width and depth

76. What is the main advantage of broaching over shaping process?
A. Use of single point cutting tool which are inexpensive and can be grounded to any shape

B. Thin or fragile jobs can be conveniently machined because of lower cutting forces

C. Surfaces with obstruction can also be machined

D. Removal of the whole material in one stroke

Answer: D.Removal of the whole material in one stroke
77. For which of the following operations, broaching can be used?
A. Threading

B. Grinding

C. Spline cutting

D. Increasing the size of the existing hole for a certain length

Answer: C.Spline cutting
78. Why push type broaches are made shorter in length?
A. To reduce machining time

B. To increase the efficiency

C. For easy handling of the tool

D. To avoid buckling

Answer: D.To avoid buckling
79. Why chip breakers are provided on the broach?
A. To reduce machining time.

B. To increase the cutting force by breaking the chips

C. To reduce the friction between tool surface and the workpiece by breaking the chips

D. To break up the wide curling chips

Answer: D.To break up the wide curling chips
80. Why neck section provided in the pull type broaches are made shorter in diameter?
A. To provide better surface finish

B. To remove chips easily

C. To allow failure in case of overloading

D. For holding purpose

Answer: C.To allow failure in case of overloading
81. In broaching, generally the broach remains fixed and the workpiece travels providing cutting velocity.
A. True

B. False

C. none

D. all

Answer: B.False
82. How many types of broaches are there?
A. 3

B. 5

C. 8

D. 9

Answer: D.9
83. Which of the following broaches are re-sharpened by grinding at rake faces?
A. Form relieved type

B. Modular type

C. Profile sharpened type

D. Sectional type

Answer: A.Form relieved type
84. Which of the following type of broaches are sharpened or re-sharpened by grinding at theflank surfaces?
A. Profile sharpened type

B. Sectional type

C. Segmented type

D. Ordinary cut type

Answer: A.Profile sharpened type
chapter:
Grinding Machines and Abrasives
85. Following is an abrasive cutting
A. Milling

B. Grinding

C. Laser beam machining

D. All of the above

Answer: B.Grinding
86. Grinding is best suited to the machining of
A. Soft material

B. Very hard material

C. Both (A) and (B)

D. None of the above

Answer: B.Very hard material
87. Following process (es) is (are) subset(s) of grinding
A. Honing

B. Lapping

C. Sanding

D. All of the above

Answer: D.All of the above
88. The work holding device in surface grinding is known as
A. Chuck

B. Mandrel

C. Tool post

D. None of the above

Answer: A.Chuck
89. Grinding is commonly used on
A. Aluminium

B. Brass

C. Plastic

D. Cast Iron

Answer: D.Cast Iron
90. Which of the following material(s) tend to clog the cutting wheel
A. Aluminium

B. Brass

C. Plastic

D. All of the above

Answer: D.All of the above
91. Following is (are) the type of cylindrical grinding
A. Outside diameter grinding

B. Plunge grinding

C. Centerless grinding

D. All of the above

Answer: D.All of the above
92. In cylindrical grinder, how many centers hold the workpiece?
A. One

B. Two

C. Three

D. Four

Answer: B.Two
93. Most cylindrical grinding machines include a ___ to allow the forming of tapered piece.
A. Grinding dog

B. Swivel

C. Center driver

D. None of the above

Answer: B.Swivel
94. In cylindrical grinding, the abrasive wheel and the workpiece are
A. Rotated by separate motors and at different speeds.

B. Rotated by separate motors and at same speed.

C. Rotated by single motor and at same speed.

D. Any of the above

Answer: A.Rotated by separate motors and at different speeds.
95. In which of the grinding methods, rate of material removal is high?
A. Surface grinding

B. Cylindrical grinding

C. Creep feed grinding

D. All of the above

Answer: C.Creep feed grinding
96. In which of the following grinding methods, grinding wheel never need dressing
A. High efficiency deep grinding

B. Continuous dress creep feed grinding

C. Surface grinding

D. All of the above

Answer: A.High efficiency deep grinding

97. In centerless grinding, workpiece is supported by
A. Centers

B. Chuck

C. Work rest

D. All of the above

Answer: C.Work rest
98. Following is a type of centerless grinding
A. Through feed grinding

B. In feed grinding

C. Internal centerless grinding

D. All of the above

Answer: D.All of the above
99. In electrochemical grinding, grinding wheel is
A. Positively charged

B. Negatively charged

C. Grounded

D. Any of the above

Answer: B.Negatively charged
100. In electrochemical grinding, the pieces from the workpiece
A. Are dissolved into the conductive fluid

B. Melts and vaporizes

C. Flushed out

D. None of the above

Answer: A.Are dissolved into the conductive fluid

101. Following cutting fluid is used for grinding of Cast iron
A. Heavy duty emulsifiable oil

B. Light duty chemical oil

C. Synthetic oil

D. All of the above

Answer: D.All of the above
102. Stainless steel is very difficult to grind due to its
A. Toughness

B. Ability to work harden

C. Both (A) and (B)

D. None of the above

Answer: C.Both (A) and (B)
103. Which of the following property changes due to grinding
A. Mechanical properties

B. Physical properties

C. Chemical properties

D. All of the above

Answer: D.All of the above
104. Synthetic oil is used as cutting fluid in grinding for
A. Cast iron

B. Stainless steel

C. Plastics

D. All of the above

Answer: D.All of the above

105. In which operation, motion of job is rotary and motion of cutting tool is forwardtranslating?
A. turning

B. planning

C. milling

D. all of the mentioned

Answer: A.turning

106. Which type of job motion is there in drilling operation?
A. rotary

B. translating

C. fixed

D. none of the mentioned

Answer: C.fixed

107. In which type of operation, motion of cutting tool is translating?
A. drilling and milling

B. milling and turning

C. boring and drilling

D. turning and planning

Answer: C.boring and drilling

108. In which type of operation, motion of cutting tool is rotary as well as translating?
A. planning

B. milling

C. drilling

D. turning

Answer: C.drilling

109. In drilling motion of job is rotary.
A. true

B. false

C. none

D. all

Answer: B.false

110. Which of the following is the example of multi point cutting tool?
A. milling cutter

B. broaching tool

C. both milling utter and broaching tool

D. none of the mentioned

Answer: C.both milling utter and broaching tool

111. In how many groups, cutting tools can be divided?
A. 2

B. 3

C. 4

D. none of the mentioned

Answer: A.2

112. In how many groups, various metal working processes can be classified?
A. 2

B. 3

C. 4

D. none of the mentioned

Answer: A.2

chapter: Metal Cutting Lathes

113. In lathe work, when the tool is fed parallel to the rotation of job work, it will produce
A. Cylindrical surface

B. Spherical surface

C. Tapered surface

D. All of the above

Answer: A.Cylindrical surface

114. The following type of Lathe is operated through Cams and Cam plate.
A. Precision Lathe

B. Crankshaft Lathe

C. Screw cutting Lathe (Automatic)

D. Duplicating Lathe

Answer: C.Screw cutting Lathe (Automatic)

115. The following part of Lathe serves as housing for the driving pulleys and back gears
A. Head stock

B. Tail stock

C. Bed

D. Carriage

Answer: A.Head stock

116. In Lathe, the back gears are used for affecting _______ in spindle speeds, therebyfacilitating wider range of speeds
A. Increase

B. Reduction

C. Increase or reduction

D. None of the above

Answer: B.Reduction

117. The following acts as driving shaft in Lathe.
A. Countershaft

B. Spindle shaft

C. Lead screw

D. None of the above

Answer: A.Countershaft

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