Category: Civil Engineering Drawing Objective Questions

Civil Engineering Drawing Multiple Choice Questions on “Loci of Points”.

1. The locus of a point P moving in a plane about another point O in such a way that its distance from it is constant, is called _________
a) Arc
b) Angle
c) Circle
d) Perpendicular bisector

Answer: c
Clarification: According to locus postulate: The locus of a point P moving in a lane about another point in such a way that its distance from it is constant, is a circle of some radius.

2. The locus of a point equidistant from two fixed points A and B in the same plane, is the called ___________
a) Straight line
b) Angle
c) Circle
d) Perpendicular bisector

Answer: d
Clarification: According to locus postulate: The locus of a point equidistant from two fixed points A and B in the same plane, is the perpendicular bisector of the line joining the two points.

3. The locus of a point equidistant from two fixed non-parallel straight line AB and CD is known as _______________
a) Straight line
b) Angular bisector
c) Circle
d) Perpendicular bisector

Answer: b
Clarification: According to locus postulate: The locus of a point equidistant from two fixed non-parallel straight lines AB and CD will be a straight line bisecting the angle between them.

4. Using ruler and compass how will you construct ∆ABC, if AB=3.5, BC=6 and angle ABC=60^o?
a) Draw line BC=6 cm and an angle CBA=600. Cut off AB=3.5. Join AC, triangle ABC is the required triangle
b) Draw line BC=6 cm and AB= 3.5 and then angle ABC=60o, ABC is the required triangle
c) Draw line AB= 3.5cm and cut off AB = 6 cm at any point and make angle CBA=600
d) Draw angle CBA= 600 and make

5. Given 2 points A and B, what is the locus of points P so that angle APB is a right angle?
a) A square with points A and B
b) The circle with diameter AB
c) A rectangle with side A and B
d) A semi-circle with diameter AB

6. For all value of the co-ordinates of a moving point Pare (a cos θ, b sin θ); what will be the equation to the locus of P?
a) x²/a² + y²/b² = 0
b) x²/b² + y²/a² = 0
c) x²/b² + y²/a² = 1
d) x²/a² + y²/b² = 1

Answer: d
Clarification: Let (x, y) be the co-ordinates of any point on the locus traced out by the moving point P. Then we shall have
x = a cos θ or x/a = cos θ and y = b sin θ or, y/b = sin θ
x²/a² + y²/b² = cos² θ + sin² θ or, x²/a² + y²/b² = 1
which is the required equation to the locus of P.

7. What curve does the locus represent if the locus of a moving point which is always equidistant from the points (2, -1) and (3, 2)?
a) Hyperbola
b) Straight line
c) Ellipse
d) Circle

8. A point moves in such a manner that three times of its abscissa is greater by 5 than two times of its ordinate; find the equation of its locus.
a) 3y-2y=5
b) 3x-2y=5
c) 2x+3y=5
d) 2x-3y=5

Answer: b
Clarification: Here the terms abscissa and ordinate are the coordinates of a point in a two- dimensional rectangular Cartesian coordinate system where abscissa represents x-axis and ordinate as y-axis. So according to the given question the equation is as follows: 3x-2y=5.

9. What will be the geometry made by a locus of a swimmer maintaining the same distant from the lighthouse?
a) Square
b) Rectangle
c) Circle
d) Triangle

10. Which statement is correct for the locus shown in the figure below?

a) A point P moving in a plane about another point in such a way that its distance is constant
b) A point P moving in a plane about a fixed line as an arc with same centre
c) A point P moving in a plane about another point in such a way that its distance from a fixed line AB is constant
d) A point equidistant from two fixed non-parallel lines AB and CD in the same plane

Answer: b
Clarification: As per arc postulate regarding locus it is stated as: When the fixed line is an arc of a circle, the locus will be another arc drawn through same centre. Here fixed line is an arc AB and the locus drawn is an arc representing the circumference, produced due to point P.

11. Four bar mechanism is generally used in ___________________
a) Bicycle
b) Fan
c) Train suspension
d) Rickshaw

12. Chords which are ___________ from the centre are equal.
a) unequal
b) equidistant
c) one third
d) two third

Civil Engineering Drawing Questions and Answers for Experienced people on “Estimate of Three Roomed and Sixed Roomed Building”.

1. The expected out turn of 2.5 cm cement concrete floor per mason per day _____________
a) 2.5 sqm
b) 5.0 sqm
c) 7.5 sqm
d) 10 sqm

Answer: c
Clarification: For 100 sum, no. of Mason is 13 no. i.e. for 13 Mason flooring is 100 square meter.
So for 1 Mason flooring is 100/13 = 7.69 sum.
So option 7.5 sqm is the answer.

2. Brick walls are measured in sq. m if the thickness of the wall is _________
a) 10 cm
b) 15 cm
c) 20 cm
d) 11 cm

Answer: a
Clarification: 10cm, actually in India half brick thick wall is 115 mm thick. Half brick Modular brick wall is 10cm. Thick including thickness of plaster. However plaster is paid separately in both the cases. In India half brick thick wall is paid in sq. meter.

3. In long and short wall method of estimation, the length of long wall is the centre to centre distance between the walls and ________________
a) breadth of the wall
b) half breadth of wall on each side
c) one fourth breadth of wall on each side
d) length of the wall

Answer: b
Clarification: This method is used for deriving quantities of different items of work in a load bearing structure. The wall that contains lengthiest length on plan is considered as “long wall” and all the walls parallel to the certain long wall (regardless of length) are also taken as long walls. The wall that is perpendicular to the direction of long wall is taken as “short wall” alias “cross wall”.

4. The height of the sink of wash basin above floor level is kept at _________
a) 60 cm
b) 70 cm
c) 75 cm to 80 cm
d) 80 cm

Answer: c
Clarification: In British English, a sink is where you wash the pots in a kitchen, and a basin (or washbasin) is where you wash yourself in the bathroom. In general, a basin is a receptacle that is wider than it is deep; the word is used as a synonym for “bowl” in cooking preparation.

5. The cost of the earthwork in excavation for the surface drain of cross-section shown in the given figure for a total length of 5 metres @ Rs. 450% cum, is ___________

a) Rs. 450
b) Rs. 500
c) Rs. 420
d) Rs. 600

Answer: a
Clarification: The length of drain = 5m.
Width of drain as per figure = 0.5m.
Depth of drain as per figure = 0.4m.
Total quantity = 5 * 0.5 * 0.4 = 1 cum. As per the question, cum excavation rate is 450%.So the total cost required for excavation of drain is = 1 * 450 = Rs.450.
Therefore, the answer is Rs. 450.

6. Tender is an offer given in writing to execute specified articles or materials at a certain.
a) False
b) True

Answer: b
Clarification: Tender is an offer given in writing to execute specified articles or materials at a certain rate, within a fixed time, under certain conditions of agreement between the contractor and the party, which may be a government department or an individual.

7. Abstract estimate is not the third and final stage in a detailed estimate.
a) False
b) True

Answer: a
Clarification: This is the third and final stage in a detailed estimate. The quantities and rates of each item of work, arrived in the first two stages, are now entered in an abstract form. The total cost of each item of work is now calculated by multiplying the quantities and respective rates.

8. Estimate the quantities of brickwork and plastering required in a wall 4m long, 3m high and 30 cm thick. Calculate also the cost if the rate of brickwork is Rs.32.00 per cu.m and of plastering is Rs. 8.50 per sq.m.
a) Rs.1456.00
b) Rs.1686.00
c) Rs.1356.00
d) Rs.1556.00

Answer: c
Clarification: Quantities of brickwork = LxBxH = 4m x 3m x 0.30m = 3.6 cu.m
Quantity of plastering (two faces) = 2 x 4m x 3m = 24sq.m
Cost of brickwork = 3.6 x 320.00 = Rs.1152.00
Cost of plastering = 24x 8.50 = Rs.204.00
Total cost = 1152.00 + 204.00 = Rs.1356.00.

Civil Engineering Drawing Multiple Choice Questions on “Brickwork, Woodwork and Stone Masonry”.

1. The craft of _______________ involves creating buildings, structures, and sculpture using stone from the earth.
a) brick masonry
b) cement masonry
c) sculpture masonry
d) stonemasonry
Answer: d
Clarification: It is one of the oldest trades in human history. These materials have been used to construct many of the long-lasting, ancient monuments, artifacts, cathedrals, and cities in a wide variety of cultures. Famous works of stonemasonry include the Taj Mahal, Cusco’s Incan Wall, Easter Island’s statues, the Egyptian Pyramids, Angkor Wat, Borobudur, Tihuanaco, Tenochtitlan, Persepolis, the Parthenon, Stonehenge, and Chartres Cathedral.

2. ______________ are workshop-based and specialize in working the stones into the shapes required by a building’s design, this set out on templets and a bed mould.
a) Fixer mason
b) Advance mason
c) Stone mason
d) Banker masons
Answer: d
Clarification: They can produce anything from stones with simple chamfers to tracery windows, detailed mouldings and the more classical architectural building masonry. When working a stone from a sawn block, the mason ensures that the stone is bedded in the right way, so the finished work sits in the building in the same orientation as it was formed on the ground.

3. ____________ specialize in the fixing of stones onto buildings, using lifting tackle, and traditional lime mortars and grouts.
a) Rigid masons
b) Raw masons
c) Fixer masons
d) Head mason
Answer: c
Clarification: Sometimes modern cements, mastics and epoxy resins are used, usually on specialist applications such as stone cladding. Metal fixings, from simple dowels and cramps to specialised single application fixings, are also used. The precise tolerances necessary make this a highly skilled job.

4. There are two main types of sedimentary stone used in masonry work, limestone and ______________
a) limestone
b) gravel
c) sandstones
d) marble
Answer: c
Clarification: Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) mineral particles or rock fragments. Most sandstone is composed of quartz or feldspar because they are the most resistant minerals to weathering processes at the Earth’s surface, as seen in Bowen’s reaction series.

5. _____________ is used as a protective and decorative covering for interior or exterior walls and surfaces.
a) Plaster
b) Stone veneer
c) Paint
d) Putty
Answer: b
Clarification: Stone veneer can be made from natural stone as well as manufactured stone. Natural stone veneer is made from real stone that is either collected, i.e. fieldstone, or quarried. The stone is cut to a consistent thickness and weight for use as a veneer.

6. The basic tools for shaping the stone are a mallet _________ and a metal straight edge.
a) trowel
b) knife
c) chisels
d) ruler
Answer: c
Clarification: Chisels come in a variety of sizes and shapes, dependent upon the function for which they are being used and have many different names depending on locality. There are different chisels for different materials and sizes of material being worked, for removing large amounts of material and for putting a fine finish on the stone.

7. The ________________ is used for the application of the mortar between and around the stones as they are set into place.
a) hammer
b) tray
c) chisel
d) masonry trowel
Answer: d
Clarification: Filling in the gaps (joints) with mortar is referred to as pointing. Pointing in smaller joints can be accomplished using tuck pointers, pointing trowels, and margin trowels, among other tools.

8. All bricks in this bond are headers, but for the lap-generating quoin three-quarter bat which offsets each successive course by half a header, this bond is called __________
a) Flemish stretcher bond
b) Stretcher, or running bond
c) Header bond
d) Raking stretcher bond
Answer: c
Clarification: Header bond is often used on curving walls with a small radius of curvature. In Lewes, Sussex, England UK many small buildings are constructed in this bond, using blue coloured bricks and vitrified surfaces.

9. Which type of bond is shown in the below figure?

a) Single basket weave bond
b) Double basket weave bond
c) Herringbone bond
d) Della Robbia bond
Answer: b
Clarification: The herringbone pattern made by placing soldiers next to stretchers or vice versa (i.e. headers perpendicular) making ‘L’ shapes, nesting each L in the same order of laying. Thin bricks are more common. The pattern is usually rotated by 45° to create a completely vertical (plumb) succession of ‘V’ shapes. It follows either the left or right brick forms the tip of the v in any wall. Herringbone is sometimes used as infill in timber framed buildings.

10. _______________ is very hard wood and has a dark reddish brown color. It is fragrant and close grained. It is hard to work and takes high polish. Used in musical instruments, piano cases, tool handles, art projects, veneers and furniture.
a) Walnut
b) Sandalwood
c) Mahogany
d) Rosewood
Answer: d
Clarification: All rosewoods are strong and heavy, taking an excellent polish, being suitable for guitars (the fretboards on electric and acoustic guitars often being made of rosewood), marimbas, recorders, turnery (billiard cues, fountain pens, black pieces in chess sets, etc.), handles, furniture, and luxury flooring, etc. Rosewood oil, used in perfume, is extracted from the wood of Aniba rosaeodora, which is not related to the rosewoods used for lumber.

11. ____________ is wood that as a result of a naturally occurring chemical transformation has become more resistant to decay.
a) Sapwood
b) Knot
c) Bark
d) Heartwood
Answer: d
Clarification: Heartwood formation is a genetically programmed process that occurs spontaneously. Some uncertainty exists as to whether the wood dies during heartwood formation, as it can still chemically react to decay organisms, but only once.
Heartwood is often visually distinct from the living sapwood, and can be distinguished in a cross-section where the boundary will tend to follow the growth rings. For example, it is sometimes much darker.

12. Stone walls are usually made of local materials varying from limestone and flint to granite and sandstone.
a) True
b) False
Answer: a
Clarification: However, the quality of building stone varies greatly, both in its endurance to weathering, resistance to water penetration and in its ability to be worked into regular shapes before construction. Worked stone is usually known as ashlar, and is often used for corners in stone buildings.

13. English garden wall bond course of headers bond has three courses of stretchers between every course of stretcher.
a) True
b) False
Answer: a
Clarification: For the standard English garden wall bond, headers are used as quoins for the middle stretching course in order to generate the lap, with queen closers as the penultimate brick at either end of the heading courses. A more complex set of quoins and queen closers is necessary to achieve the lap for a raking English garden wall bond.

14. Glued engineered wood products are manufactured by bonding together wood strands, veneers, lumber.
a) True
b) False
Answer: a
Clarification: These products include glued laminated timber (glulam), wood structural panels (including plywood, oriented strand board and composite panels), laminated veneer lumber (LVL) and other structural composite lumber (SCL) products, parallel strand lumber, and I-joists. Approximately 100 million cubic meters of wood was consumed for this purpose in 1991. The trends suggest that particle board and fiber board will overtake plywood.

15. As a tree grows, lower branches often die, and their bases may become overgrown and enclosed by subsequent layers of trunk wood, forming a type of imperfection known as an excreta.
a) False
b) True
Answer: a
Clarification: As a tree grows, lower branches often die, and their bases may become overgrown and enclosed by subsequent layers of trunk wood, forming a type of imperfection known as a knot.

Civil Engineering Drawing Multiple Choice Questions on “Dealing with Railways”.

1. Modern track typically uses _____________ with a profile of an asymmetrical rounded I-beam.
a) wooden
b) iron
c) hot-rolled steel
d) alloy of aluminium
Answer: c
Clarification: Unlike some other uses of iron and steel, railway rails are subject to very high stresses and have to be made of very high-quality steel alloy. It took many decades to improve the quality of the materials, including the change from iron to steel. The stronger the rails and the rest of the trackwork, the heavier and faster the trains the track can carry.

2. Name the form of track, the rails are welded together by utilising flash butt welding to form one continuous rail that may be several kilometres long.
a) INR
b) CBR
c) SBBR
d) WSR
Answer: b
Clarification: The preferred process of flash butt welding involves an automated track-laying machine running a strong electric current through the touching ends of two unjoined rails. The ends become white hot due to electrical resistance and are then pressed together forming a strong weld. Thermite welding is used to repair or splice together existing CWR segments. This is a manual process requiring a reaction crucible and form to contain the molten iron. Thermite-bonded joints are seen as less reliable and more prone to fracture or break.

3. What does the weight of the rails depends upon?
a) Speed of train
b) Gauge of the tracks
c) Nature of traffic
d) Speed of train, gauge of tracks and nature of traffic
Answer: d
Clarification: The weight of a rail per length is an important factor in determining rails strength and hence axle loads and speeds.
Weights are measured in pounds per yard or kilograms per metre; the pounds-per-yard figure is almost exactly double the kilograms-per-metre figure. Rails in Canada, the United Kingdom and United States are described using imperial units. In Australia, metric units are used as in mainland Europe.
Commonly, in rail terminology Pound is a contraction of the expression pounds per yard and hence a 132–pound rail means a rail of 132 pounds per yard.

4. Minimum depth of ballast prescribed of B.G. trunk lines of Indian Railways is?
a) 15 cm
b) 10 cm
c) 50 cm
d) 25 cm
Answer: d
Clarification: Track ballast forms the tracked upon which railroad ties (sleepers) are laid. It is packed between, below, and around the ties. It is used to bear the load from the railroad ties, to facilitate drainage of water, and also to keep down vegetation that might interfere with the track structure. This also serves to hold the track in place as the trains roll by.

5. How is the boxing of ballast done?
a) Under the rails
b) At the rails
c) In between two rails
d) In between two sleepers
Answer: b
Clarification: Boxing is the loose ballast provided around sleeper while packing is compacted ballast cushion as per gradation below sleeper, boxing provides lateral stability to sleeper.

6. Coal ash (or cinder) is used in initial stages of a new construction of railway for __________
a) wooden sleepers
b) steel sleepers
c) cast iron sleepers
d) iron sleepers
Answer: a
Clarification: For preventing of wooden sleepers from termite and fungus.

7. In India the rails are manufactured bywhom?
a) Open hearth process
b) Duplex process
c) Open hearth process and Duplex process
d) Iron sleepers
Answer: c
Clarification: Open hearth furnaces are one of a number of kinds of furnace where excess carbon and other impurities are burnt out of pig iron to produce steel. Since steel is difficult to manufacture due to its high melting point, normal fuels and furnaces were insufficient and the open hearth furnace was developed to overcome this difficulty.
A duplex locomotive is a steam locomotive that divides the driving force on its wheels by using two pairs of cylinders rigidly mounted to a single locomotive frame; it is not an articulated locomotive.

8. To prevent percolation of water into formation, what is the use of moorum?
a) Black cotton soil
b) Sandy soil
c) Clayey soil
d) Red soil
Answer: a
Clarification: It is taken out from earth/hills/mountain & 4/5 type of moorum are available & of different colour brown, dark brown, yellow or grey.
Type of moorum depends on their grain size, liquid limit, Plastic limit, moisture density relationship based on these parameters its selected & laid in layers as filling material under road, plinth, tanks, runways etc.

9. Wooden sleepers used on the girders of bridges are generally made of __________
a) chir
b) teak
c) sal
d) deodar
Answer: b
Clarification: Teak is strong. It is naturally oily, which makes it a very good material make outside furniture from. We say that it is very durable material. It is highly resistant to moisture, fire, acid and alkalis. It can be cut and shaped very easily. It does not corrode iron and steel.

10. Dimensions of a plate girder are _________
a) 551 mm x 454 mm
b) 111 mm x 94 mm
c) 81 mm x 54 mm
d) 851 mm x 254 mm
Answer: d
Clarification: A plate girder is a girder that has been fabricated by welding plates together to create the desired shape. The fabricator receives large plates of steel in the desired thickness, then cuts the flanges and web from the plate in the desired length and shape. Plate girders can have a greater height than rolled steel girders and are not limited to standardized shapes.

11. Which is the best wood that can be used for wooden sleepers?
a) Shesham
b) Teak
c) Sal
d) Deodar
Answer: b
Clarification: Teak’s high oil content, high tensile strength and tight grain make it particularly suitable where weather resistance is desired. It is used in the manufacture of outdoor furniture and boat decks. It is also used for cutting boards, indoor flooring, countertops and as a veneer for indoor furnishings.

12. Which type of switch generally used for B.G. and M.G. tracks?
a) straight cut
b) over riding
c) undercut
d) articulated
Answer: b
Clarification: Metre gauge is the system of narrow gauge railways and tramways with a track gauge of 1,000 mm (3 ft 3(frac{3}{8}) in). It has installations of around 95,000 kilometres (59,000 mi) in the world. It is the main gauge in some countries.
Broad gauge railways use a track gauge (distance between the rails) greater than the standard gauge of 1,435 mm (4 ft 8(frac{1}{2}) in).

13. What is coning of wheels?
a) Provide smooth running of trains
b) Prevent lateral movement of wheels
c) Avoid excessive wear of inner faces of rail
d) Provide smooth running of trains, prevent lateral movement of wheels and avoid excessive wear
Answer: d
Clarification: The coning of wheels helps to keep the vehicle centrally aligned on a straight and level track also. Slight irregularities in the track do occur as a result of moving loads and the vagaries of the weather. The wheels, therefore, move from side to side and therefore the vehicles sway. Due to the coning of wheels, this side movement results in the tread circumference of one wheel increasing over the other. As both the wheels have to traverse the same distance, this causes one wheel to slide. Due to the resistance caused by the sliding, any further side movement is prevented.

14. The sleepers which satisfy the requirements of an ideal sleeper are ___________
a) Cast iron sleepers
b) R.C.C sleepers
c) Steel sleepers
d) Wooden sleeper
Answer: d
Clarification: Wooden railway sleepers are also comparatively cheap, as well as light and easy to transport, install and maintain. The average timber railway sleeper weighs around 160lb-250lb, whereas an equivalent sleeper made of concrete could weigh anything up to 800lb. This means that wooden railway sleepers are quicker and easier to install initially and require little to no specialist equipment or vehicles for maintenance, which means cost-savings for rail operators.

15. At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates and _______
a) 8 fish bolts
b) 4 fish bolts
c) 1 fish bolts
d) 2 fish bolts
Answer: b
Clarification: A fishplate, splice bar or joint bar is a metal bar that is bolted to the ends of two rails to join them together in a track. The name is derived from fish, a wooden bar with a curved profile used to strengthen a ship’s mast. The top and bottom edges are tapered inwards so the device wedges itself between the top and bottom of the rail when it is bolted into place.