300+ TOP Cutting Tools MCQs and Answers Quiz Exam [Latest]

Cutting Tools Multiple Choice Questions

1. The ascending order of evolution of materials used for making the cutting tools is

a. bronze – stone – steel – iron

b. iron – steel – bronze – stone

c. stone – bronze – iron – steel

d. bronze – stone – steel – iron

2. The materials are added to cutting tools to increase their properties. Match the following

Tungsten              a. Hardness
Carbon                  b. Hot hardness
Vanadium            c. Wear resistance

The correct order is

a. 1. b, 2. a, 3. c

b. 1. c, 2. a, 3. b

c. 1. b, 2. c, 3. a

d. 1. a, 2. b, 3. c

3. Which of the following is second hardest substance known?

a. Ceramics

b. Cermets

c. Cubic Boron Nitride (CBN)

d. Diamond

4. Which of the following tools are generally manufactured by Powder metallurgy?

a. Low carbon steel

b. Abrasives

c. High carbon steel

d. Cemented carbides

5. Which of the following is hardest known material?

a. Cemented carbide

b. Ceramics

c. Cubic boron nitride (CBN)

d. Diamond

6. Corrundum is a/an

a. Diamond

b. Abrasive

c. Ceramic

d. None of the above

7. The cutting tool wears due to

a. Edge wear

b. Crater wear

c. Flank wear

d. All of the above

8. The built up edge in cutting tools can be eliminated by

a. Fast cutting speed

b. Higher rake angles

c. High pressure cutting fluid

d. All of the above

9. The cutting speed of High speed steels is ___ times faster than Carbon steel

a. 2

b. 4

c. 6

d. 8

10. Which of the following cutting tool has highest hot hardness?

a. Ceramics

b. Cast alloys

c. High speed steels

d. Carbon tool steel

11. Which of the following cutting conditions greatly affects the tool wear?

a. Cutting speed

b. Feed

c. Depth of cut

d. None of the above

12. Which of the following is not a constituent of High speed steel?

a. V

b. Cr

c. W

d. Ni

13. In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then the tool life will become

a. Half

b. Two times

c. Eight times

d. Sixteen times

14. A drill bit of 20mm diameter rotating at 500 rpm with a feed rate of 0.2 mm/revolution is used to drill a through hole in Mild Steel plate of 20mm thickness. The depth of cut in this drilling operation is

a. 100 mm

b. 20 mm

c. 10 mm

d. 0.2 mm

15. The tool life increases with the

a. Increase in side cutting edge angle

b. Decrease in side rake angle

c. Decrease in nose radius

d. Decrease in back rake angle

16. Match list I and II and select the correct answer using the codes given below the lists:

List I (Cutting tools)                  List II (Major constituent)
a. Stellite                                   1. Tungsten
b. HSS                                       2. Cobalt
c. Ceramic                                3. Alumina
d. UCON                                   4. Columbium
5. Titanium
a. a. 5, b. 1, c. 3, d. 4

b. a. 2, b. 1, c. 4, d. 3

c. a. 2, b. 1, c. 3, d. 4

d. a. 2, b. 5, c. 3, d. 4

17. In the Taylor’s tool life equation, VT^n = C, the value of n=0.5. The tool life has a life of 180 minutes at a cutting speed of 18 m/min. If the tool life is reduced to 45 minutes, then the cutting speed will be

a. 9 m/min

b. 18 m/min

c. 36 m/min

d. 72 m/min

18. Match list. I (Cutting tool material) with List. II (Typical value of tool life exponent ‘n’ in the Taylor’s equation V.T^n=C) and select the correct answer using the codes given below the lists:

List I                          List II
a. HSS                       1. 0.18
b. Cast alloy             2. 0.12
c. Ceramic                3. 0.25
d. Sintered carbide 4. 0.5
a. a. 1, b. 2, c. 3, d. 4

b. a. 2, b. 1, c. 3, d. 4

c. a. 2, b. 1, c. 4, d. 3

d. a. 1, b. 2, c. 4, d. 3

19. The cutting velocity in m/sec, for turning a work piece of diameter 100 mm at the spindle speed of 480 rpm is

a. 1.26

b. 2.51

c. 48

d. 151

20. Which of the following tool materials have cobalt as a constituent element?

Tungsten carbide 2. CBN 3. Stellite 4. UCON
Select the correct answer using the codes given below

a. 1 & 2

b. 1 & 3

c. 1 & 4

d. 2 & 3

21. The approximately variation of the tool life exponent ‘n’ of cemented carbide tools is

a. 0.03 to 0.08

b. 0.08 to 0.20

c. 0.20 to 0.48

d. 0.48 to 0.70

22. The coating materials for coated carbide tools, include

a. TiC, TiN and NaCN

b. TiC and TiN

c. TiN and NaCN

d. TiC and NaCN

23. Consider the following cutting tool materials used for metal. cutting operation at high speed:

  1. Tungsten carbide
  2. Cemented titanium carbide
  3. High speed steel
  4. Ceramet

The correct sequence in increasing order of the range of cutting speeds for optimum use of these materials is

a. 3, 1, 4, 2

b. 1, 3, 2, 4

c. 3, 1, 2, 4

d. 1, 3, 4, 2

24. Match List. I (Cutting tool materials) and List. II (Fabrication processes) and select the correct answer using the codes given below the lists:

List I                                      List II
a. HSS                                  1. Casting
b. Stellite                             2. Powder metallurgy
c. Carbide                            3. Forging
d. UCON                             4. Extrusion
5. Rolling

a. a. 3, b. 1, c. 2, d. 4

b. a. 1, b. 5, c. 3, d. 4

c. a. 2, b. 4, c. 3, d. 5

d. a. 3, b. 1, c. 2, d. 5

25. Which one of the following grinding wheels (with grade, grit and bond) is suitable for cutter grinding?

a. K 60 vitrified

b. K 320 vitrified

c. T 60 resinoid

d. T 320 resinoid

26. Using the Taylor equation VT^n=c, calculate the percentage increase in tool life when the cutting speed is reduced is reduced by 50% (n=0.5 and c=400)

a. 300%

b. 400%

c. 100%

d. 50%

27. Consider the following actions:

  1. Mechanical abrasion
  2. Diffusion
  3. Plastic deformation
  4. Oxidation

Which of the above are the causes of tool wear?

a. 2 & 3

b. 1 & 2

c. 1, 2 & 4

d. 1 & 3

28. Tool material not suited to resistance welding is

a. Aluminium oxide

b. Stellite

c. High speed steel

d. Masonite

29. Consider the following statements:

Chipping of a cutting tool is due to

  1. Tool material being too brittle
  2. Hot hardness of the tool material
  3. High positive rake angle of the tool
  4. Which of these statements are correct?

a. 1, 2 & 3

b. 1 & 3

c. 2 & 3

d. 1 & 2

30. A milling cutter of 70 mm diameter with 12 teeth is operating at a cutting speed of 22 m/min and a feed of 0.05 mm/tooth. The feed rate per minute is

a. 110 mm/min

b. 35 mm/min

c. 6 mm/min

d. 60 mm/min

Cutting Tools Objective Questions with Answers Pdf Download

Leave a Reply

Your email address will not be published. Required fields are marked *