Description : In a singly reinforced beam, the effective depth is measured from its compression edge to (A) Tensile edge (B) Tensile reinforcement (C) Neutral axis of the beam (D) Longitudinal central axis
Last Answer : Answer: Option B
Description : If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is (A) d (B) n (C) d + n/3 (D) d - n/3
Last Answer : Answer: Option D
Description : In a doubly-reinforced beam if and is the effective depth and is depth of critical neutral axis, the following relationship holds good (A) mc/t = n/(d - n) (B) (m + c)/t = n/(d + n) (C) (t + c)/n = (d + n)/n D) mc/t = (d - n)/t
Last Answer : Answer: Option A
Description : A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm
Last Answer : Answer: Option C
Description : If the depth of actual neutral axis of a doubly reinforced beam (A) Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier (B) Is less ... critical neutral axis; the concrete and steel attain their maximum stresses simultaneously (D) All the above
Description : The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm2 and 250 kg/cm2 respectively. If m = 15, the depth of its neutral axis is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm
Description : A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is (A) bn (fc ... (B) Atft (d - n/3) (C) ½ n1 (1 - n1/3) cbd² (D) All the above
Description : If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called (A) Balanced beam (B) Under-reinforced beam (C) Over-reinforced beam (D) None of the above
Last Answer : Option C
Description : If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singly reinforced rectangular balanced section will be (A) 0.35 d (B) 0.40 d (C) 0.45 d (D) Dependent on grade of concrete also
Description : Regarding the working stress design of under reinforced concrete section, (a) The neutral axis depth will be greater than that of a balanced section. (b) The stress in steel intension will reach ... on the tension side is also be considered for calculating the moment of resistance of the section.
Last Answer : both b&c
Description : The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio ... in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2
Last Answer : (b) 135N/mm2
Description : In a singly reinforced beam, the effective depth is measured form the compression edge to the (a) Tensile edge (b) Centre of tensile reinforcement (c) Neutral axis of the beam (d) All of the above
Last Answer : (b) Centre of tensile reinforcement
Description : The depth of neutral axis for over reinforced section is ----------- the depth of critical neutral axis [ A ] Equal to [ B ] Greater than [ C ] Less than [ D ] None of the above
Last Answer : [ B ] Greater than
Description : The depth of neutral axis for under reinforced section is --------- the depth of critical neutral axis [ A ] Equal to [ B ] Greater than [ C ] Less than [ D ] None of the above
Last Answer : [ C ] Less than
Description : Pick up the correct statement from the following: (A) The breakwater which can be used as a platform for loading and unloading of cargo is called a mole (B) The brick masonry retaining wall which is ... wall (C) Three types of break waters are generally provided in harbours (D) All of the above
Last Answer : (D) All of the above
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 : A doubly reinforced section is used (a) When the members are subjected to alternate external loads and the bending moment in the sections reverses. (b) When the member are subjected to loading eccentric in ... . (c) When the members are subjected to accidental lateral loads . (d) All of the above
Last Answer : (d) All of the above
Description : For a reinforced concrete section, the shape of shear stress diagram is (A) Wholly parabolic (B) Wholly rectangular (C) Parabolic above neutral axis and rectangular below neutral axis (D) Rectangular above neutral axis and parabolic below neutral axis
Description : For a reinforced concrete beam section, the shape of shear stress diagram is (a) Parabolic over the whole section with maximum value at the neutral axis. (b) Parabolic above the neutral axis and rectangular below the neutral axis. (c) Linearly varying as the distance form the N.A. (d) All the above.
Last Answer : (b) Parabolic above the neutral axis and rectangular below the neutral axis.
Description : In a reinforced concrete beam , the shear stress distribution above the neutral axis following a (a) A straight line (b) Circular curve (c) Parabolic curve (d) All the above
Last Answer : (c) Parabolic curve
Description : The neutral axis of an over –reinforced section falls (a) On the critical neutral axis of balanced section. (b) Below the critical neutral axis of balanced section (c) Above the neutral axis o balanced section (d) Al l the above
Last Answer : (b) Below the critical neutral axis of balanced section
Description : The actual neutral axis of n under reinforced section is above the critical neutral axis of a balanced section (a) Correct (b) Incorrect (c) Not known (d) None of these
Last Answer : (a) Correct
Description : A reinforced concrete beam will crack if tensile stress set up in the concrete below the neutral axis is (a) More than the permissible stress (b) Less than the permissible stress (c) Equal to the permissible stress (d) All the above.
Last Answer : (a) More than the permissible stress
Description : In a simply supported reinforced concrete beam, the reinforcement is placed. (a) Above the neutral axis (b) Below the neutral axis (c) At the neutral axis (d) None of these
Last Answer : (b) Below the neutral axis
Description : If the depth of actual axis in a beam is more than the depth of critical axis, then the beam is called (a) Over reinforced beam (b) Under-reinforced beam (c) Balanced beam (d) Deep beam
Last Answer : (a) Over reinforced beam
Description : The intensity of vertical pressure at a depth directly below the point load on its axis of loading is: (A) 0.4775 Q/Z (B) 0.4775 Q/Z² (C) 0.4775 Q/Z3 (D) 0.4775 Q Z
Last Answer : (B) 0.4775 Q/Z²
Description : Stucco paints are suitable for (A) Stone masonry (B) Brick walls (C) Both (A) and (B) (D) Neither (A) nor (B)
Description : The frog of the brick in a brick masonry is generally kept on (A) Bottom face (B) Top face (C) Shorter side (D) Longer side
Description : For one cubic metre of brick masonry, number of bricks required, is (A) 400 (B) 425 (C) 450 (D) 500
Description : In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as (A) English bond (B) Double Flemish bond (C) Zigzag bond (D) Single Flemish bond
Description : Number of bricks required for one cubic metre of brick masonry is (A) 400 (B) 450 (C) 500 (D) 550
Description : The type of bond provided in brick masonry for carrying heavy loads is (A) Single Flemish bond (B) Double Flemish bond (C) English bond (D) Zigzag bond
Description : The stretcher bond in brick masonry can be used only when the thickness of wall is (A) 90 mm (B) 180 mm (C) 190 mm (D) 280 mm
Description : Pick up the correct statement from the following: (A) English bond is used for brick masonry to support heavy loads (B) Double-Flemish bond is suitable for brick masonry to give uniform face ... The stretcher bond is used for the construction of half brick masonry brick (D) All the above
Description : The strength of brick masonry in 1:6 cement mortar, is (A) 20 tonnes/m2 (B) 40 tonnes/m2 (C) 50 tonnes/m2 (D) 60 tonnes/m
Description : The type of bond in a brick masonry containing alternate courses of stretchers and headers, is called (A) Flemish bond (B) English bond (C) Stretcher bond (D) Header bond
Description : To obtain good bonding in brick masonry (A) First class bricks are used (B) Vertical joints in alternate courses are kept in plumb line (C) Bats are used where necessary (D) All the above
Last Answer : Option D
Description : The minimum strength of the mortar used in load bearing brick masonry, is (A) 50 N/cm2 (B) 100 N/cm2 (C) 150 N/cm2 (D) 200 N/cm2
Last Answer : : Option B
Description : If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then (A) M/I = R/E = F/Y (B) I/M = R/E = F/Y (C) M/I = E/R = E/Y (D) M/I = E/R = Y/F
Last Answer : (C) M/I = E/R = E/Y
Description : At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by (A) Depth of the section (B) Depth of the neutral axis (C) Maximum tensile stress at the section (D) Maximum compressive stress at the section
Last Answer : (B) Depth of the neutral axis
Description : The maximum compressive stress at the top of a beam is 1600 kg/cm2 and the corresponding tensile stress at its bottom is 400 kg/cm2 . If the depth of the beam is 10 cm, the neutral axis from the top, is (A) 2 cm (B) 4 cm (C) 6 cm (D) 8 cm
Last Answer : (D) 8 cm
Description : If is the shear force at a section of an I-joist, having web depth and moment of inertia about its neutral axis, the difference between the maximum and mean shear stresses in the web is, (A) Sd²/8I (B) Sd²/12I (C) Sd²/16I (D) Sd²/24I
Last Answer : (D) Sd²/24I
Description : With usual notations the depth of the neutral axis of a balanced section, is given by (A) mc/t = (d - n)/n (B) t/mc = (d - n)/n (C) t/mc = (d + n)/n (D) mc/t = n/(d - n)
Description : As the percentage of steel increases (A) Depth of neutral axis decreases (B) Depth of neutral axis increases (C) Lever arm increases (D) Lever arm decreases
Description : If the modular ratio is , steel ratio is and overall depth of a beam is , the depth of the critical neutral axis of the beam, is (A) [m/(m - r)] d (B) [m/(m + r)] d (C) [(m + r)/m] d (D) [(r - m)/m] d
Description : The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (A) 0.367 xu (B) 0.416 xu (C) 0.446 xu (D) 0.573 xu Where xu is the depth of neutral axis at the limit state of collapse
Description : In limit state design of concrete for flexure, the area of stress block is taken as (a) 0.530 fck. Xu (b) 0.446 fck . Xu ( c) 0.420 fck .Xu (d) 0.360 fck . Xu Where fck is characteristic compressive strength of concrete and Xu is the depth of neutral axis from top.
Last Answer : (d) 0.360 fck . Xu
Description : As the percentage of steel in a beam increases, the depth of neutral axis (a) Increases (b) Decreases (c) Equal to (d) None of these
Last Answer : (a) Increases
Description : If the depth of actual neutral axis is greater than the depth of critical neutral axis, then [ A ] Concrete attains its permissible stress earlier [ B ] Steel attains its permissible stress earlier [ C ] Both concrete and steel reaches its permissible stresses simultaneously [ D ] None of the above
Last Answer : [ A ] Concrete attains its permissible stress earlier
Description : The depth of neutral axis for a balanced section is --------- the depth of critical neutral axis [ A ] equal [ B ] always greater than [ C ] always less than [ D ] may be sometimes greater than
Last Answer : [ A ] equal