civil engineering MCQs – Page 22

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
421. One of the criteria for the effecvve width of flange of T-beam is bf =+ bw +6Df 6 In above formula, l0 signifies_______________?
comments icon0

A. effective span of T-beam

B. clear span of the T-beam

C. distance between points of zero moments in the beam

D. distance between points of maximum moments in the beam

422. A traffic rotary is justified where______________?
comments icon0

A. when traffic volume is less than 500 vehicles per hour

B. number of intersecting roads is between 4 and 7

C. space is limited and costly

D. when traffic volume is more than 5000 vehicles per hour

423. Softening point of bitumen to be used for read construction at a place where maximum temperature is 40 C should be______________?
comments icon0
A. greater than 40C

B. none of the above

C. equal to 40C

D. less-than 40C

424. For rapid curing cutbacks, the oil used is______________?
comments icon0

A. light diesel

B. heavy diesel

C. gasoline

D. kerosene oil

425. With increase in speed of the traffic stream, the maximum capacity of the lane________________?
comments icon0
A. first increases and then decreases after reaching a maximum value at optimum speed

B. increases

C. first decreases and then increases after reaching a minimum value at optimum speed

D. decreases

426. Subtense bar is an instrument used for _______________?
comments icon0

A. levelling

B. measurement of horizontal distances in undulated areas

C. measurement of horizontal distances in plane areas

D. measurement of angles

427. The transition curve used in the horizontal alignment of highways as per IRC recommendations is_______________?
comments icon0

A. any of the above

B. spiral

C. lemniscate

D. cubic parabola

428. Bitumen of grade 80/100 means______________?
comments icon0
A. its penetration value is 8 to 10 mm

B. its penetration value is 8 to 10 cm

C. its penetration value is 8 mm

D. its penetration value is 10 mm

429. When a number of roads are meeting at a point and only one of the roads is important, then the suitable shape of rotary is________________?
comments icon0

A. elliptical

B. tangent

C. circular

D. turbine

430. If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________?
comments icon0

A. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

B. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate

C. on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate

D. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate

431. The maximum allowable Los Angeles abrasion value for high quality surface course is_______________?
comments icon0
A. 30%

B. 45%

C. 20%

D. 10%

432. In case of summit curves, the deviation angle will be maximum when_______________?
comments icon0

A. an ascending gradient meets with a level surface

B. a descending gradient meets with another descending gradient

C. an ascending gradient meets with a descending gradient

D. an ascending gradient meets with another ascending gradient

433. Coefficient of compressibility is_______________?
comments icon0

A. independent of type of soil but depends on the stress history of soil

B. constant for any type of soil

C. different for different types of soils and also different for a soil under different states of consolidation

D. different for different types of soils but same for a soil under different states of consolidation

434. Quick sand is a________________?
comments icon0
A. type of sand

B. flow condition occurring in cohesive soils

C. flow condition occurring in cohesionless soils

D. flow condition occurring in both cohesive and cohesionless soils

435. In a counterfort retaining wall, the main reinforcement is provided on the_______________?
comments icon0
A. e="color: #003f1a;">3. bottom face in back counterfort
B. e="color: #003f1a;">4. inclined face in back counterEort
C. ="color: #003f1a;">1. bottom face in front counterfort

D. correct answer is

E. e="color: #003f1a;">2. inclined face in front counterfort
436. For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankines theory_______________?
comments icon0

A. can be more than 1

B. can be less than 1

C. is always greater than 1

D. is always less than 1
437. According to Whitneys theory, depth of stress block for a balanced section of a concrete beam is limited to_______________?
comments icon0

A. 0.68 d

B. 0.537 d

C. 0.43 d

D. 0.85 d

438. In a deposit of normally consolidated clay_________________?
comments icon0
A. effective stress and undrained strength increase with depth but water content decreases with depth

B. effective stress, water content and undrained strength decrease with depth

C. effective stress increases with depth but water content of soil and un-drained strength decrease with depth

D. effective stress and water content increase with depth but undrained strength decreases with depth

439. A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45. The values of cohesion and angle of internal friction for the soil are respectively______________________?
comments icon0

A. 0.2 N/mm2 and 0

B. 0.5 N/mm2 and 30

C. 0.05 N/mm2 and 0

D. 0.05 N/mm2 and 45

440. Minimum thickness of load bearing RCC wall should be_____________?
comments icon0
A. 100 mm

B. 200 mm

C. 50 mm

D. 150 mm