(A) Away from edges, the maximum bending moment is negative

(B) Away from edges, the maximum bending moment cause compression

(C) On the edges, the maximum stress is parallel to the edge of the slab

(D) None of these

**Description :** In cement concrete pavements, tensile stress is due to: (A) Bending or deflection under wheel loads (B) Difference in temperature of the top and bottom of pavement (C) Contraction of slab during falling temperature (D) All the above

**Last Answer :** Answer: Option D

**Description :** In a concrete pavement, during summer, at and soon after mid-day, the combined stress at the interior of the slab is equal to : (a) Wheel load stress + Temperature warping stress + Sub ... + Sub grade resistant stress (d) Wheel load stress - Temperature warping stress − Sub grade resistant stress

**Last Answer :** (b) Wheel load stress + Temperature warping stress – Sub grade resistant stress

**Description :** If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by (A) 0.2 (B) 0.3 (C) 0.4 (D) 0.5

**Last Answer :** Answer: Option D

**Description :** If the sides o a slab simply supported on its edges and spanning in two way are equal, then the maximum bending moment is multiplied by. (a) 0.25 (b) 0.50 (c) 0.75 (d) 0.85

**Last Answer :** (b) 0.50

**Description :** 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 ... (L + 2D/3)² (C) WL/10 (L - 2D/3)² (D) WL/12 (L - D/3)²

**Last Answer :** Answer: Option C

**Description :** A two way slab (a) May be simply supported on the four edges, with comers not held down and carrying uniformly distributed load. (b) May be simply supported on the four edge , with corners held ... . (c) May have edges fixed or continuous and carrying uniformly distributed load. (d) All the above.

**Last Answer :** (d) All the above.

**Description :** The design of heel slab of a retaining wall is based on the maximum bending moment due to: (A) Its own weight (B) Weight of the soil above it (C) Load of the surcharge, if any (D) All the above

**Last Answer :** Answer: Option D

**Description :** If l1 and l2 are the lengths of long and short spans of a two way slab simply supported on four edges and carrying a load w per unit area, the ratio of the loads split into w1 and w2acting on strips parallel to l2 and l1 is (A) ... l1 (B) w1/w2 = (l2/l1)² (C) w1/w2 = (l2/l1)3 (D) w1/w2 = (l2/l1)

**Last Answer :** Answer: Option D

**Description :** The base of a column is subjected to moment. If the intensity of bearing pressure due to axial load is equal to stress due to moment, then the bearing pressure between the base and the concrete ... Tension at one end and compression at the other end (d) Compression, verying as a parabolic profile

**Last Answer :** (b) Zero at one end and compression at the other end

**Description :** When a slab is continuous over several spans, negative (i.e. hogging ) bending moment is induced over the (a) End supports (b) Intermediate supports (c) Both (a) & (b) (d) Non of the

**Last Answer :** (b) Intermediate supports

**Description :** is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is (A) f = (P/A) + (Z/M) ... ) + (M/Z) (C) f = (P/A) + (M/Z) (D) f = (P/A) + (M/6Z)

**Last Answer :** Answer: Option C

**Description :** is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is (A) f = (P/A) - (Z/M) (B) f = (A/P) - (M/Z) (C) f = (P/A) - (M/Z) (D) f = (P/A) - (M/6Z)

**Last Answer :** Answer: Option C

**Description :** Inc case of prestressed concrete members, the bursting stresses develop at (a) Bond zone (b) Maximum bending moment zone (c ) Maximum shear stress zone (d) Anchorage zone

**Last Answer :** (d) Anchorage zone

**Description :** For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment, is (A) 1 (B) 2 (C) 3 (D) 5

**Last Answer :** Answer: Option B

**Description :** Find the correct statement from the followings. (a) For a cantilever slab, the ratio of span to overall depth should not 12. (b) One way slab which carry uniformly distributed load should be designed to ... be designed to resist a hogging moment at the face of the support. (d) All of the above.

**Last Answer :** (d) All of the above.

**Description :** When the slab is supported on all the four edges and the ratio of long span to short span is small, bending takes place along both the spans, such a slab is known as (a) Slab spanning in one direction (b) One way slab. (c) Slab spanning in two direction. (d) Two-way slab.

**Last Answer :** (d) Two-way slab.

**Description :** 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 ... ) Kx (1 - x/l) + bw (C) Kx (1 + x/l) + bw (D) All the above

**Last Answer :** Answer: Option B

**Description :** If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept (A) 1.275 d (B) 1.125 d (C) 0.85 d (D) 0.75 d

**Last Answer :** Answer: Option C

**Description :** The amount of reinforcement for main bars in a slab, is based upon (A) Minimum bending moment (B) Maximum bending moment (C) Maximum shear force (D) Minimum shear force

**Last Answer :** Answer: Option B

**Description :** The amount of reinforcement for main bars in a slab, is based upon (a) Maximum bending moment (b) Minimum bending moment (c) Maximum shear force (d) Minimum shear force

**Last Answer :** (a) Maximum bending moment

**Description :** The maximum bending moment and deflection for two way slab is much _________than that of a one wayslad. (a) Greater (b) Smaller (c) Equal (d) All of these

**Last Answer :** (b) Smaller

**Description :** Select the incorrect statement from the following In eccentrically loaded columns, [ A ] The tensile strength of concrete is ignored [ B ] Design stress - strain curve for steel in compression is the ... different points in the section will be same [ D ] Plane section remain plane even after bending

**Last Answer :** [ C ] The strain at different points in the section will be same

**Description :** If the width of a pavement slab is 7.5 m, thickness 20 cm and working stress 1400 kg/cm2 , spacing of 10 mm tie bars for the longitudinal joint, is (A) 10 cm (B) 20 cm (C) 30 cm (D) 40 cm

**Last Answer :** Answer: Option C

**Description :** The critical section for finding maximum bending moment for footing under masonry wall is located (A) At the middle of the wall (B) At the edge of the wall (C) Halfway between the middle and edge of the wall (D) At a distance equal to effective depth of footing from the edge of the wall

**Last Answer :** Answer: Option C

**Description :** The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to (A) T/2 (B) T (C) 2 T (D) 4 T

**Last Answer :** (A) T/2

**Description :** Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm

**Last Answer :** Answer: Option B

**Description :** In prestressed concrete members, the shear force depends upon (a) Distributed load (b) Torsion (c) Concentrated load (d) Variation in net bending moment

**Last Answer :** (d) Variation in net bending moment

**Description :** Why Are Separation Membranes Used Between Concrete Pavement Slab And Sub-base?

**Last Answer :** Answer : The purpose of separation membrane between the concrete pavement slab and the sub-base are as follows: The separation membrane reduces the frictional forces between the concrete slabs and ... of it. A good example of a separation membranes is polythene sheeting which is commonly used.

**Description :** A slab simply supported on the four edges, with corners not held down and carrying uniformly distributed load, is used in (a) Singly storeyed buildings. (b) Double storeyed buildings. (c) Multi storeyed buildings (d) All the above

**Last Answer :** (a) Singly storeyed buildings.

**Description :** A diagram which shows the variations of the axial load for all sections of the span of a beam, is called (A) Bending moment diagram (B) Shear force diagram (C) Thrust diagram (D) Stress diagram

**Last Answer :** Answer: Option C

**Description :** Negative yield line form i. Near the supports in the case of slabs fixed or continuous at the edge. ii. At mid span in the case of slabs fixed. iii.At mid span for simply supported circular slab [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii

**Last Answer :** [ A ] i

**Description :** If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is (A) WR²/16 (B) 2WR²/16 (C) 3WR²/16 (D) Zero

**Last Answer :** Answer: Option C

**Description :** is the load on a circular slab of radius , the maximum radial moment at the centre of the slab, is (A) WR²/16 (B) 2WR²/16 (C) 3WR²/16 (D) 5WR²/16

**Last Answer :** Answer: Option C

**Description :** If is the uniformly distributed load on a circular slab of radius fixed at its ends, the maximum positive radial moment at its centre, is (A) 3WR²/16 (B) 2WR²/16 (C) WR²/16 (D) None of these

**Last Answer :** Answer: Option C

**Description :** Flanged beams are preferred when the concrete in the slab is on the [ A ] compression side of the beam [ B ] tension side of the beam [ C ] may be compression side or tension side of the beam [ D ] none of the above

**Last Answer :** [ A ] compression side of the beam

**Description :** Flanged beams are preferred when the concrete in the slab is on the [ A ] compression side of the beam [ B ] tension side of the beam [ C ] may be compression side or tension side of the beam [ D ] none of the above

**Last Answer :** [ A ] compression side of the beam

**Description :** The moments developed in the slab are influenced by the following factors i.Short span ii.Long span iii.Type of supporting edge. iv.Magnitude and type of load on slab [ A ] i, iii and iv [ B ] ii ,iii and iv [ C ] i and iii [ D ] i, ii , iii and iv

**Last Answer :** [ D ] i, ii , iii and iv

**Description :** A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is (A) M/T (B) T/M (C) 2M/T (D) 2T/M

**Last Answer :** (C) 2M/T

**Description :** shaft subjected to a bending moment M and a torque T, experiences (A) Maximum bending stress = 32M d 3 (B) Maximum shear stress = 16 T d 3 (C) Both (a) and (b) (D) Neither (a) nor (b)

**Last Answer :** (C) Both (a) and (b)

**Description :** If a shaft is simultaneously subjected to a toque T and a bending moment M, the ratio of maximum bending stress and maximum shearing stress is (A) M/T (B) T/M (C) 2M/T (D) 2T/M

**Last Answer :** (C) 2M/T

**Description :** Wahl’s stress concentration factor is used in close coiled springs under axial load to account for (a) Shear effect (b) Bending effect (c) Compression effect (d) none

**Last Answer :** (b) Bending effect

**Description :** A constant potential difference is applied across the plates of a parallel-plate capacitor. Neglecting any edge effects, the electric field inside the capacitor is: w) constant x) varying as one over r squared y) decreasing as one moves from the positive to the negative plate z) zero

**Last Answer :** ANSWER: W -- CONSTANT

**Description :** On a pavement with parabolic camber, the angle of inclination of the vehicles will be (A) More at the crown (B) Less at the edges (C) More at the edges (D) Same at the edges as well as at the crown

**Last Answer :** Answer: Option C

**Description :** The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is (A) WI/2 (B) WI²/4 (C) WI²/8 (D) WI²/12

**Last Answer :** (C) WI²/8

**Description :** A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be (A) 8 kN.m (B) 15 kN.m (C) 30 kN.m (D) 60 kN.m

**Last Answer :** (C) 30 kN.m

**Description :** When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when (A) The centre of gravity of the load system is midway between the centre of ... the centre of span and the centre of gravity of the load system (D) None of the above

**Last Answer :** (B) The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration

**Description :** The maximum bending moment due to a train of wheel loads on a simply supported girder (A) Always occurs at centre of span (B) Always occurs under a wheel load (C) Never occurs under a wheel load (D) None of the above

**Last Answer :** (B) Always occurs under a wheel load

**Description :** When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that (A) The head of the load ... position should be such that the section divides the load in the same ratio as it divides the span

**Last Answer :** (D) The load position should be such that the section divides the load in the same ratio as it divides the span

**Description :** When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies (A) Less ... (B) Whole of left half span (C) More than the left half span (D) Whole span

**Last Answer :** (D) Whole span

**Description :** For a simply supported beam carrying uniformly distributed load W on it entire length L, the maximum bending moment is (A) WL/4 (B) WL/8 (C) WL/2 (D) WL/3

**Last Answer :** (B) WL/8