Description : In the reinforced cement concrete structure, the steel reinforcement consists of . (a) Deformed bars (b) Cold twisted bars (c) Mildsteel and medium tensile steel bars (d) All of these
Last Answer : (d) All of these
Description : The main reinforcement of a R.C. slab consists of 10 mm bars at 100 mm spacing; if it is desired to replace the 10 mm bars by 12 mm bars, then the spacing of 12mm bars should be (a) 120 mm (b) 140 mm (c ) 144 mm (d) 160mm
Last Answer : (c ) 144 mm
Description : Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam (A) Are curtailed if not required to resist the bending moment (B) Are bent up at suitable ... to serve as shear reinforcement (D) Are maintained at bottom to provide at least local bond stress
Last Answer : Answer: Option C
Description : The diameter of bars for main reinforcement in slabs, may be (a) 2 to 4mm (b) 4 to 8mm (c) 8 to 14mm (d) 14 to 18mm
Last Answer : (c) 8 to 14mm
Description : The diameter of bars used for distribution reinforcement in slabs, may vary from (a) 2 to 4mm (b) 4 to 6mm (c) 6mm to 8mm (d) 8 to 12mm
Last Answer : (c) 6mm to 8mm
Description : A leaf spring consists of 3 extra full length leaves and 14 graduated length leaves. The maximum force that can act on the spring is 70kN and the distance between eyes of the spring is 1.2m. Width and thickness of the ... /mm², calculate the initial nip. (a) 26.8mm (b) 24.9mm (c) 22.5mm (d)23.1mm
Last Answer : b) 24.9mm
Description : Lapped splices in tensile reinforcement are generally not used for bars of size larger than (A) 18 mm diameter (B) 24 mm diameter (C) 30 mm diameter (D) 36 mm diameter
Last Answer : Answer: Option D
Description : An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2 , the beam (A) Is safe in shear (B) Is safe with stirrups (C) Is safe with stirrups and inclined bars (D) Needs revision of section
Description : Maximum allowable spacing of shear reinforcement for inclined stirrups with an inclination of 45° is restricted to [ A ] 0.75 d [ B ] 0.45 d [ C ] 0.90 d [ D ] d
Last Answer : [ D ] d
Description : Maximum allowable spacing of shear reinforcement for vertical stirrups is restricted to [ A ] d [ B ] 0.45 d [ C ] 0.75 d [ D ] 0.90 d
Last Answer : [ C ] 0.75 d
Description : The spacing of stirrups in doubly reinforced beams should be least of the following (i)Least Lateral dimension (ii)Sixteen times the diameter of longitudinal steel (iii)Forty eight times the diameter of transverse reinforcement [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii
Last Answer : [ D ] i, ii and iii
Description : According to IS: 456-2000 spacing of vertical stirrups for shear reinforcement has been limited to [ A ] 0.75 d [ B ] 450 mm [ C ] lesser of 0.75 d or 300 mm [ D ] lesser of 0.75d or 450 mm
Last Answer : [ C ] lesser of 0.75 d or 300 mm
Description : longitudinal bars and lateral stirrups, is (A) Stress in concrete × area of concrete (B) Stress in steel × area of steel (C) Stress in concrete × area of concrete + Stress in steel × area of steel (D) None of these
Description : If a beam fails in bond, then its bond strength can be increased most economically by (A) Increasing the depth of beam (B) Using thinner bars but more in number (C) Using thicker bars but less in number (D) Providing vertical stirrups
Last Answer : Answer: Option B
Description : The torsion resisting capacity of a given reinforced concrete section. (a) Decreases with decrease in stirrups spacing. (b) Decreases with increase in longitudinal bars. (c) Does not depend upon stirrups and longitudinal steels. (d) Increases with increase in stirrups and longitudinal steels.
Last Answer : (d) Increases with increase in stirrups and longitudinal steels.
Description : The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is (A) 1400 kg/cm2 (B) 190 kg/cm2 (C) 260 kg/cm2 (D) 230 kg/cm
Last Answer : Answer: Option A
Description : If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is (A) 10 mm (B) 12 mm (C) 14 mm (D) 16 mm
Description : The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than (A) 0.15 (B) 0.12 (C) 0.30 (D) 1.00
Description : Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of ... (D) The number of longitudinal bars provided in a circular column should not be less than four
Description : A leaf spring consists of 3 extra full length leaves and 14 graduated length leaves. The maximum force that can act on the spring is 70kN and the distance between eyes of the spring is 1.2m. Width and thickness of the ... close the nip. (a) 4332.2N (b) 4674.1N (c) 4985.4N (d) Can't be determined
Last Answer : (b) 4674.1N
Description : If the size of a column is reduced above the floor, the main bars of the columns, are (A) Continued up (B) Bent inward at the floor level (C) Stopped just below the floor level and separate lap bars provided (D) All the above
Description : Pick up the correct statement from the following: (A) The bent up bars at a support resist the negative bending moment (B) The bent up bars at a support resist the sharing force (C) The bending of bars near supports is generally at 45° (D) All the above
Last Answer : (D) All the above
Description : A compound bar consists of two bars of equal length. Steel bar cross-section is 3500 mm2 and that of brass bar is 3000 mm2 . These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm2 and Eb = 0.1 ... 6 N/mm2 s = 12 N/mm2 (D) b = 5 N/mm2 s = 10 N/mm
Last Answer : (A) b = 10 N/mm2 s = 20 N/mm
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
Description : When shear stress exceeds the permissible limit in a slab, then it is reduced by (A) Increasing the depth (B) Providing shear reinforcement (C) Using high strength steel (D) Using thinner bars but more in number
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 : If high yield strength deformed bars are used, the are of distribution reinforcement in slabs, should not less than. (a) 0.12% of the gross area of concrete (b) 0.15% of the gross area of concrete (c) 0.18% of the gross area of concrete (d) 0.20% of the gross area of concrete
Last Answer : (a) 0.12% of the gross area of concrete
Description : If plain bars are used, the area of distribution reinforcement in slabs should not less than (a) 0.12% of the gross area f concrete (b) 0.15% of the gross area of concrete (c) 0.18% of the gross area of concrete (d) 0.20% of the gross area of concrete
Last Answer : (b) 0.15% of the gross area of concrete
Description : The pitch of bars of main reinforcement in slab should not exceed ________the effective depth of slab. (a) Double (b) Three times (c) Five times (d) Six times
Last Answer : (b) Three times
Description : Shear reinforcement is provided in the form of (a) Vertical bars (b) Inclined bars (c) Combination of vertical and inclined bars (d) All the above
Last Answer : (d) All the above
Description : Minimum reinforcement in slabs, when High yield strength deformed bars [ A ] 0.12% of gross cross sectional area [ B ] 0.15% of gross cross sectional area [ C ] 0.20% of gross cross sectional area [ D ] 0.25% of gross cross sectional area.
Last Answer : [ A ] 0.12% of gross cross sectional area
Description : As per IS: 1139, permissible stress in compression steel reinforcement for High Yield strength deformed bars is [ A ] 140 N/mm2 [ B ] 190 N/mm2 [ C ] 230 N/mm2 [ D ] 415 N/mm2
Last Answer : [ B ] 190 N/mm2
Description : Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as (A) 1/8th of the span (B) 1/10th of the span (C) 1/12th of the span (D) 1/16th of the span
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
Description : The purpose of reinforcement in pre-stressed concrete is (A) To provide adequate bond stress (B) To resist tensile stresses (C) To impart initial compressive stress in concrete (D) All of the above
Description : The minimum strain at failure in the tensile reinforcement (Fy = 400 MPa) of RCC beam as per limit state method is (a) 0.0020 (b) 0.0028 (c) 0.0037 (d) 0.0045
Last Answer : (c) 0.0037
Description : The effective depth of a T-beam is the distance between the (a) Centre of the flange and the top of the tensile reinforcement (b) Top of the flange and the centre of the tensile ... centre of the tensile reinforcement (d) Centre of the flange and the bottom centre of the tensile reinforcement
Last Answer : (b) Top of the flange and the centre of the tensile reinforcement
Description : In a T-beam, the vertical distance between the bottom of the flange and the centre of the tensile reinforcement is (a) Breadth of flange (b) Thickness of flange (c) Breadth of slab (d) Depth of rib
Last Answer : (d) Depth of rib
Description : In a doubly reinforced beam , steel reinforcement is provided in a (a) Tensile zone (b) Compression zone (c) Either (a) & (b) (d) Both (a) & (b)
Last Answer : (d) Both (a) & (b)
Description : The moment of resistance of an over-reinforcement section is determined on the basis of (a) Compressive force developed in concrete (b) Tensile force developed in steel (c) Both (a) & (b) (d) None of these
Last Answer : (a) Compressive force developed in concrete
Description : The application of elastic theory to the beams is based on the assumption that (a) At any cross-section, plane sections before bending remain plane after bending (b) All tensile stresses are taken ... reinforcement is free from initial stresses when it is embedded in concrete. (d) All of the above
Last Answer : (d) All of the above
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 : In singly reinforced beams, steel reinforcement is provided in (a) Compressive zone (b) Tensile zone (c) Neutral zone (d) All the above
Last Answer : (b) Tensile zone
Description : For a balanced section, the tensile stress in the reinforcement [ A ] reaches its allowable stress [ B ] is always less than its allowable stress [ C ] may be greater than its allowable stress [ D ] none of the above
Last Answer : [ A ] reaches its allowable stress
Description : In a combined footing if shear stress does not exceed 5 kg/cm2 , the nominal stirrups provided are (A) 6 legged (B) 8 legged (C) 10 legged (D) 12 legged
Description : In a combined footing if shear stress exceeds 5 kg/cm2 , the nominal stirrups provided are: (A) 6 legged (B) 8 legged (C) 10 legged (D) 12 legged
Description : In a combined footing, in the zones where the shear stresses are less than 5 kg/cm2 , stirrups to be provided are generally (a) 2 – legged (b) 4-legged (c) 8 – legged (d) 12 legged
Last Answer : (b) 4-legged
Description : The system in which high tensile alloy steel bars (silica manganese steel) are used as prestressing tendons, is known as (A) Freyssinet system (B) Magnel-Blaton system (C) C.C.L. standard system (D) Lee-McCall system
Description : The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone (A) Compressive stress (B) Shear stress (C) Bond stress (D) Tensile stress