Explore topic-wise MCQs in Civil Engineering.

This section includes 307 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

101.

If the stopping distance is 60 meters, then the minimum stopping sight distance for two lane, two way traffic is_________________?

A. 30m
B. 60m
C. 120m
D. 180m
Answer» C. 120m
Discussion
102.

If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maxi¬mum capacity of a traffic lane at a speed of 10 m/sec is________________?

A. 1500 vehicles per hour
B. 2000 vehicles per hour
C. 2500 vehicles per hour
D. 3000 vehicles per hour
Answer» B. 2000 vehicles per hour
Discussion
103.

If the group index value of subgrade is between 5 and 9, then the subgrade is treated as_____________?

A. good
B. fair
C. poor
D. very poor
Answer» D. very poor
Discussion
104.

If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in meters is given by the expression_________________?

A. 0.38 N V3/2
B. 0.38 (NV3)”2
C. 3.8 NV”2
D. 3.8 (NV3)”2
Answer» C. 3.8 NV”2
Discussion
105.

If ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be_________________?

A. 3 %
B. 4%
C. 5 %
D. 6%
Answer» C. 5 %
Discussion
106.

If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be________________?

A. less than b/2h and greater than co-efficient of lateral friction
B. less than b/2h and also less than co-efficient of lateral friction
C. greater than b/2h and less than co-efficient of lateral friction
D. greater than b/2h and also greater than coefficient of lateral friction
Answer» C. greater than b/2h and less than co-efficient of lateral friction
Discussion
107.

If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of summit curve for a stopping sight distance of 80 m will be_______________?

A. zero
B. 64m
C. 80m
D. 60m
Answer» E.
Discussion
108.

If aggregate impact value is 20 to 30 percent, then it is classified as_______________?

A. exceptionally strong
B. strong
C. satisfactory for road surfacing
D. unsuitable for road surfacing
Answer» D. unsuitable for road surfacing
Discussion
109.

Highway facilities are designed for_________________?

A. annual average hourly volume
B. annual average daily traffic
C. thirtieth highest hourly volume
D. peak hourly volume of the year
Answer» D. peak hourly volume of the year
Discussion
110.

Group index method of design of flexible pavement is_______________?

A. a theoretical method
B. an empirical method based on physical properties of subgrade soil
C. an empirical method based on strength characteristics of subgrade soil
D. a semi empirical method
Answer» C. an empirical method based on strength characteristics of subgrade soil
Discussion
111.

For water bound macadam roads in localities of heavy rainfall, the recommended value of camber is_______________?

A. 1 in 30
B. 1 in 36
C. 1 in 48
D. 1 in 60
Answer» C. 1 in 48
Discussion
112.

For the design of super elevation for mixed traffic conditions, the speed is reduced by_____________?

A. 15%
B. 20%
C. 25%
D. 75%
Answer» D. 75%
Discussion
113.

For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is________________?

A. dry rolling, wet rolling, application of screening and application of filler
B. dry rolling, application of filler, wet rolling and application of screening
C. dry rolling, application of screening, wet rolling and application of filler
D. dry rolling, application of screening, application of filler and wet rolling
Answer» D. dry rolling, application of screening, application of filler and wet rolling
Discussion
114.

For rapid curing cutbacks, the oil used is______________?

A. gasoline
B. kerosene oil
C. light diesel
D. heavy diesel
Answer» B. kerosene oil
Discussion
115.

For highway geometric design purposes the speed used is________________?

A. 15th percentile
B. 50 “”percentile
C. 85th percentile
D. 98 “”percentile
Answer» E.
Discussion
116.

For design, that length of transition curve should be taken which is_____________?

A. based on allowable rate of change of centrifugal acceleration
B. based on rate of change of super elevation
C. higher of (A) and (B)
D. smaller of (A) and (B)
Answer» D. smaller of (A) and (B)
Discussion
117.

For a constant value of coefficient of lateral friction, the value of required super-elevation increases with_______________?

A. increase in both speed and radius of curve
B. decrease in both speed and radius of curve
C. increase in speed and with decrease in radius of curve
D. decrease in speed and with increase in radius of curve
Answer» E.
Discussion
118.

Flexible pavement distribute the wheel load_____________?

A. directly to subgrade
B. through structural action
C. through a set of layers to the subgrade
D. none of the above
Answer» D. none of the above
Discussion
119.

Equivalent factor of passenger car unit (PCU) for a passenger car as per IRC is_____________?

A. 1.0
B. 2.0
C. 0.5
D. 10
Answer» B. 2.0
Discussion
120.

Enoscope is used to find______________?

A. average speed
B. spot speed
C. space-mean speed
D. time-mean speed
Answer» C. space-mean speed
Discussion
121.

Desire lines are plotted in_________________?

A. traffic volume studies
B. speed studies
C. accident studies
D. origin and destination studies
Answer» E.
Discussion
122.

“Dead Slow” is a______________?

A. regulatory sign
B. warning sign
C. informatory sign
D. none of the above
Answer» B. warning sign
Discussion
123.

Compared to a level surface, on a descending gradient the stopping sight distance is_______________?

A. less
B. more
C. same
D. dependent on the speed
Answer» C. same
Discussion
124.

Coefficient of friction is less when the pavement surface is________________?

A. rough
B. dry
C. smooth and dry
D. smooth and wet
Answer» E.
Discussion
125.

Centre line markings are used_____________?

A. to designate traffic lanes
B. in roadways meant for two way traffic
C. to indicate that overtaking is not permitted
D. to designate proper lateral placement of vehicles before turning to different directions
Answer» C. to indicate that overtaking is not permitted
Discussion
126.

Camber in the road is provided for_______________?

A. effective drainage
B. counteracting the centrifugal force
C. having proper sight distance
D. none of the above
Answer» B. counteracting the centrifugal force
Discussion
127.

Bottom most layer of pavement is known as_____________?

A. wearing course
B. base course
C. sub-base course
D. subgrade
Answer» E.
Discussion
128.

Bitumen of grade 80/100 means______________?

A. its penetration value is 8 mm
B. its penetration value is 10 mm
C. its penetration value is 8 to 10 mm
D. its penetration value is 8 to 10 cm
Answer» D. its penetration value is 8 to 10 cm
Discussion
129.

As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is______________?

A. 10 lux
B. 15 lux
C. 20 lux
D. 30 lux
Answer» E.
Discussion
130.

As per IRC recommendations, the maximum limit of super elevation for mixed traffic in plain terrain is_______________?

A. 1 in 15
B. 1 in 12.5
C. 1 in 10
D. equal to camber
Answer» B. 1 in 12.5
Discussion
131.

A traffic rotary is justified where______________?

A. number of intersecting roads is between 4 and 7
B. space is limited and costly
C. when traffic volume is less than 500 vehicles per hour
D. when traffic volume is more than 5000 vehicles per hour
Answer» B. space is limited and costly
Discussion
132.

The correct formula for calculating superelevation for the hill roads, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» C. [C].
Discussion
133.

The safe stopping sight distance D, may be computed from the equation

A. [A].
B. [B].
C. [C].
D. [D].
Answer» B. [B].
Discussion
134.

While designing hair pin bends on higways, the minimum

A. designed speed is 20 km/hour
B. gradient is 1 in 40
C. gradient is 1 in 200
D. superelevations is 1 in 10
E. All the above.
Answer» F.
Discussion
135.

The safe length L of a valley curve for night travel is

A. [A].
B. [B].
C. neither (a) nor (b)
D. both (a) and (b)
Answer» E.
Discussion
136.

If N is deviation angle the length L of a parabolic vetical curve for overtaking sight distance S, is

A. [A].
B. [B].
C. [C].
D. [D].
E. Both (A) and (C)
Answer» F.
Discussion
137.

If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is

A. [A].
B. [B].
C. [C].
D. [D].
E. both (a) and (b)
Answer» F.
Discussion
138.

If V is speed in km/hour and R is radius of the curve, the superelevation e is equal to

A. [A].
B. [B].
C. [C].
D. [D].
Answer» C. [C].
Discussion
139.

Minimum radius of a simple circular curve deflecting through 5°, is

A. 1618.9 m
B. 1816.9 m
C. 1718.9 m
D. 1817.9 m
Answer» D. 1817.9 m
Discussion
140.

From the point of tangency before an intersection, the route markers are fixed at a distance of

A. 15 m to 30 m
B. 20 m to 35 m
C. 40 m to 50 m
D. 50 m to 75 m
E. 100 m to 150
Answer» F.
Discussion
141.

In complex situations, total time required for a driver to form a judgement and to act, may be taken as

A. 1.0 sec
B. 1.5 sec
C. 2.0 sec
D. 2.5 sec
E. 3.0 sec
Answer» F.
Discussion
142.

Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2, is

A. 70 kg/sq cm
B. 80 kg/sq cm
C. 90 kg/sq cm
D. 100 kg/sq cm
Answer» D. 100 kg/sq cm
Discussion
143.

If At is the area of steel cross-section, t is working stress, L is width of road and W is weight of slab per square metre, the spacing of the tie bars for a longitudinal joint, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» E.
Discussion
144.

For the design of cement concrete pavement for corner loading, Indian Road Congress recommends the use of

A. Westergard's formula
B. Kelly's formula
C. Goldbeck's formula
D. Spanlar's formula
E. Picker's formula.
Answer» F.
Discussion
145.

If E is the modulus of elasticity of the concrete in kg/cm2, d is the slab thickness in cm, is the Poisson's ratio for the concrete, k is the sub-grade modulus kg/cm3, the radius r of relative stiffness in cm,

A. [A].
B. [B].
C. [C].
D. [D].
Answer» B. [B].
Discussion
146.

The formula for calculating the depth of concrete pavements suggested by Goldbeck, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» C. [C].
Discussion
147.

If N is the algebraic difference of grades, S is the head light beam distance in metres, the length (L) of a valley curve, is

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» B. [B].
Discussion
148.

If N is the net difference of grades, S is the minimum overtaken sight distance in metres, the length (L) of a summit curve, is

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» E. [E].
Discussion
149.

If V is the design speed in km/hour and R is the radius of the curve of a hill road, the super-elevation

A. [A].
B. [B].
C. [C].
D. [D].
Answer» D. [D].
Discussion
150.

Alignment of highways in hilly regions, is decided on

A. long stretch of very hard cutting
B. number of river crossings
C. natural unstable areas
D. saddles or passes
E. all the above.
Answer» F.
Discussion