civil engineering MCQs – Page 27

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 Review each marked answer and report any item that may be outdated or unclear.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
521. Steel bars are generally connected together to get greater length than the standard length by providing_______________?
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A. Dowel splice

B. Hooked splice

C. Straight bar splice

D. All the above
522. Unconfmed compressive strength test is________________?
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A. undrained test

B. drained test

C. consolidated drained test

D. consolidated undrained test

523. In a spherical dome the hoop stress due to a concentrated load at crown is_______________?
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A. zero

B. partly compressive and partly tensile

C. tensile everywhere

D. compressive everywhere

524. The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is______________?
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A. provided more on inner face than on front face

B. not needed

C. provided more on front face than on inner face

D. provided equally on inner and front faces

525. Cube strength of controlled concrete to be used for pretensioned and post-tensioned work respectively should not be less than__________________?
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A. 35 MPa and 42 MPa

B. 42 MPa and 53 MPa

C. 53 MPa and 42 MPa

D. 42 MPa and 35 MPa
526. The value of compression index for a remoulded sample whose liquid limit is 50% is______________?
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A. 0.028

B. 36

C. 0.28

D. 0.036

527. In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on_______________?
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A. ="color: #003f1a;">1. bottom face near counterfort
B. e="color: #003f1a;">2. top face near counterfort
C. e="color: #003f1a;">3. bottom face near centre of span
D. e="color: #003f1a;">4. top face near centre of span The correct answer is

E. only (1)

F. only (2)

528. The shear strength of a soil_________________?
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A. decreases with decrease in normal stress

B. decreases with increase in normal stress

C. is inversely proportional to the angle of internal friction of the soil

D. is directly proportional to the angle of internal friction of the soil

529. If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then______________?
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A. the liquid limit of soil may increase

B. the liquid limit of soil always decreases

C. the liquid limit of soil may decrease

D. the liquid limit of soil always increases
530. For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass ?
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A. alcohol method

B. oven drying method

C. calcium carbide method

D. sand bath method

531. In counterfort type retaining walls_____________?
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A. correct answer is?

B. e="color: #003f1a;">4. the heel slab is designed as a cantilever
C. e="color: #003f1a;">3. the vertical slab is designed as a cantilever
D. e="color: #003f1a;">2. the heel slab is designed as a continuous slab
E. ="color: #003f1a;">1. the vertical slab is designed as a continuous slab
532. Time factor for a clay layer is_______________?
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A. directly proportional to permeability of soil

B. inversely proportional to drainage path

C. a dimensional parameter

D. independent of thickness of clay layer

533. The spacing of transverse reinforcement of column is decided by the following consideration_______________?
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A. All the above

B. The least lateral dimension of the column

C. Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column

D. Forty-eight times the diameter of transverse reinforcement

534. A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is___________________?
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A. 167 mm

B. 30 mm

C. 50 mm

D. 15 mm

535. If the size of panel in a flat slab is 6m x 6m, then as per Indian Standard Code, the widths of column strip and middle strip are__________________?
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A. 1.5 m and 1.5 m

B. 1.5 m and 3.0 m

C. 3.0 m and 1.5 m

D. 3.0 m and 3.0 m
536. The critical section for finding maximum bending moment for footing under masonry wall is located_______________?
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A. at the edge of the wall

B. at the middle of the wall

C. at a distance equal to effective depth of footing from the edge of the wall

D. halfway between the middle and edge of the wall
537. Highway Research Board (HRB) classification of soils is based on__________________?
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A. particle size composition

B. plasticity characteristics

C. both particle size composition and plasticity characteristics

D. none of the above

538. The limits of percentage p of the longitudinal reinforce-ment in a column is given by_____________?
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A. 0.15% to 2%

B. 0.8% to 8%

C. 0.8% to 4%

D. 0.8% to 6%
539. If the degree of saturation of a partially saturated soil is 60%, then air content of the soil is______________?
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A. 100%

B. 80%

C. 60%

D. 40%
540. The design yield stress of steel according to IS: 456-1978 is_______________?
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A. 0.57 fy

B. 0.67 fy

C. 0.87 fy

D. 0.37 fy