civil engineering MCQs – Page 36

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 Review each marked answer and report any item that may be outdated or unclear.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

701. The shear reinforcement in R.C.C. is provided to resist__________________?
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A. Vertical shear

B. Horizontal shear

C. Diagonal tension

D. Diagonal compression

702. In a simply supported slab, alternate bars are curtailed at________________?
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A. 1/7th of the span

B. 1/4th of the span

C. 1/5th of the span

D. 1/6th of the span

703. If diameter of a reinforcement bar is d, the anchorage value of the hook is_______________?
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A. 16d

B. 12d

C. 8d

D. 4d

704. Pick up the correct statement from the following?
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A. A pile is a slender member which transfers its load by friction

B. A pile is a slender member which transfers its load to the surrounding soil

C. A pile is a slender member which transfers the load through its lower end on a strong strata

D. A pile is a cylindrical body of concrete which transfers the load at a depth greater than its width

705. Spacing of stirrups in a rectangular beam, is__________________?
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A. Decreased towards the centre of the beam

B. Increased at the ends

C. Kept constant throughout the length

D. Increased at the centre of the beam

706. If two equal forces of magnitude P act at an angle 9, their resultant will be________________?
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A. Psin 9/2

B. 2P tan 9/2

C. IP cos 9/2

D. P/2 cos 9/2

E. IP sin 9/2

707. The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is_______________?
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A. 1400 kg/cm2

B. 260 kg/cm2

C. 190 kg/cm2

D. 230 kg/cm2

708. If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is______________?
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A. 37 cm

709. Enlarged head of a supporting column of a flat slab is technically known as______________?
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A. Top of the column

B. Supporting end of the column

C. Drop panel

D. Capital

710. In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups provided are________________?
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A. 6 legged

B. 12 legged

C. 8 legged

D. 10 legged

711. On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be__________________?
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A. downwards at its upper end

B. none of the above

C. perpendicular to the wall at its upper end

D. zero at its upper end

E. upwards at its upper end

712. The length of the straight portion of a bar beyond the end of the hook, should be at least_______________?
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A. Seven times the diameter

B. Four times the diameter

C. Twice the diameter

D. Thrice the diameter

713. If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than________________?
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A. WL/10 (L 2D/3)

B. WL/12 (L D/3)

C. WL/10 (L + 2D/3)

D. WL/12 (L 2D/3)

714. The length of lap in tension reinforcement should not be less than the bar diameter (actual tension / four times the permissible average bond stress) if it is more than_______________?
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A. 30 bar diameters

B. 24 bar diameters

C. 36 bar diameters

D. 18 bar diameters

715. The maximum diameter of a bar used in a ribbed slab, is______________?
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A. 20 mm

B. 6 mm

C. 12 mm

D. 22 mm

716. A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to______________?
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A. 50

B. 100

C. 250

D. 25

E. 500

717. As per IS : 456, the reinforcement in a column should not be less than________________?
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A. 0.6% and not more than 6% of cross-sectional area

B. 0.8% and not more than 8% of cross-sectional area

C. 0.5% and not more than 5% of cross-sectional area

D. 0.7% and not more than 7% of cross-sectional area

718. A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is_____________________?
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A. WL/3P

B. WL/4P

C. WL/2P

D. WL/P

719. A number of forces acting at a point will be in equilibrium if_________________?
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A. their total sum is zero

B. two resolved parts in two directions at right angles are equal

C. sum of resolved parts in any two per-pendicular directions are both zero

D. all of them are inclined equally

E. none of the above

720. The width of the rib of a T-beam, is generally kept between_______________?
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A. 1/2 to 3/4 of rib depth

B. 1/3 to 2/3 of rib depth

C. 1/7 to 1/3 of rib depth

D. 1/3 to 1/2 of rib depth

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