civil engineering MCQs – Page 235

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 Review each marked answer and report any item that may be outdated or unclear.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
4681. If a rectangular pre-stressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be_________________?
comments icon0

A. 15 cm

B. 10 cm

C. 20 cm

D. 5 cm

4682. To have pressure wholly compressive under the base of a retaining wall of width b, the resultant of the weight of the wall and the pressure exerted by the retained, earth should have eccentricity not more than________________?
comments icon0

A. b/3

B. b/4

C. b/5

D. b/6
4683. A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is______________?
comments icon0

A. 2

B. Less than 2

C. Less than 2.5

D. 2.5
4684. If diameter of a reinforcement bar is d, the anchorage value of the hook is_______________?
comments icon0

A. 12d

B. 4d

C. 16d

D. 8d

4685. A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is___________________?
comments icon0
A. 40

B. 35

C. 45

D. 30

4686. Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than________________?
comments icon0

A. Twice the diameter of thinner bar

B. One diameter of thicker bar

C. None of these

D. One diameter of thinner bar

4687. intensity of pressure at a depth h on a block of earth weighing w per unit If p1 is the vertical______________?
comments icon0
A. wh (1 sin )/(1 + ) )

B. wh (1 tan )/(1 +

C. w (1 cos )/h (1 + sin )

D. wh (1 cos )/(1 + ) p2 is

4688. If the size of a column is reduced above the floor, the main bars of the columns, are_____________?
comments icon0

A. Stopped just below the floor level and separate lap bars provided

B. Continued up

C. All the above

D. Bent inward at the floor level

4689. In a doubly-reinforced beam if and the effective depth and is depth of critical neutral axis, the following relationship holds good______________?
comments icon0

A. (m + c)/t = n/(d + n)

B. (t + c)/n = (d + n)/n

C. mc/t = (d n)/t

D. mc/t = n/(d n)
4690. Pick up the correct statement from the following?
comments icon0

A. A pile is a slender member which transfers its load by friction

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

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

D. A pile is a slender member which transfers its load to the surrounding soil
4691. An R.C.C. roof slab is designed as a two way slab if________________?
comments icon0

A. It supports live loads in both directions

B. The ratio of spans in two directions is less than 2

C. The slab is continuous over two supports

D. The slab is discontinuous at edges

4692. If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is_______________?
comments icon0

A. Kx (1 + x/l) + bw

B. K/x (1 + x/d) + bw

C. Kx (1 x/l) + bw

D. All the above

4693. In a simply supported slab, alternate bars are curtailed at________________?
comments icon0

A. 1/5th of the span

B. 1/6th of the span

C. 1/4th of the span

D. 1/7th of the span
4694. The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than________________?
comments icon0

A. 6 mm

B. 4 mm

C. 7 mm

D. 5 mm

4695. foundation is assumed as The weight of a_____________?
comments icon0

A. 12% of wall weight

B. 7% of wall weight

C. 5% of wall weight

D. 10% of wall weight
4696. The thickness of the topping of a ribbed slab, varies between________________?
comments icon0

A. 8 cm to 10 cm

B. 3 cm to 5 cm

C. 12 cm to 15 cm

D. 5 cm to 8 cm
4697. A circular slab subjected to external loading, deflects to form a_________________?
comments icon0

A. Ellipsoid

B. Paraboloid

C. None of these

D. Semi-hemisphere

4698. If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as___________________?
comments icon0

A. wl/10

B. wl/4

C. wl/8

D. wl/12

4699. carrying a uniformly distributed load per metre length is suspended at the A pile of length centre and from other two points 0.15 L from either end ; the maximum hogging moment will be_______________?
comments icon0
A. WL/90

B. WL/30

C. WL/15

D. WL/60

4700. The width of the rib of a T-beam, is generally kept between_______________?
comments icon0

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

B. 1/2 to 3/4 of rib depth

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

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