Description : The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate span is kept. (a) 0.7 (b) 0.8 (c) 0.9 (d) 0.6
Last Answer : (c) 0.9
Description : For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is (A) 0.6 (B) 0.7 (C) 0.8 (D) 0.9
Last Answer : Answer: Option D
Description : An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encasted with the floor of a hall 12 metres by 7 metres, is spaced at 3 metres from adjoining beams and if the width of the beam is ... breadth of the flange is (A) 300 cm (B) 233 cm (C) 176 cm (D) 236 cm
Last Answer : Answer: Option C
Description : Under normal conditions using an ordinary cement, the period of removal of the form work, is: (A) 7 days for beam soffits (B) 14 days for bottom slabs of spans 4.6 m and more (C) 21 days for bottom beams over 6 m spans (D) All the above
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 : 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)
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 : A reinforcing slab, build monolithically with the supporting columns and is reinforced in two or more directions, without any provision of beams is called a (a) Two way slab (b) Flat slab (c) Continus slab (d) Cireulashion
Last Answer : (b) Flat slab
Description : If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept (A) 4.5 m (B) 4.0 m (C) 3.5 m (D) 3.0 m
Last Answer : Answer: Option A
Description : A flat slab is supported (A) On beams (B) On columns (C) On beams and columns (D) On columns monolithically built with slab
Description : If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by (A) (5/6) (r/1 + r²) M (B) (5/6) (r²/1 + r²) M (C) (5/6) (r²/1 + r3 ) M (D) (5/6) (r²/1 + r4 ) M
Description : Reinforced concrete slab supported only on columns is said to be [ A ] Rigid slab [ B ] Flat slab [ C ] Both(a) and (b) [ D ] None of the above.
Last Answer : [ B ] Flat slab
Description : Pick up the correct statement from the following: (A) The roof slabs of multi-storeyed buildings are constructed monolithically to carry the various floor loads (B) The beams of multi-storeyed ... slab is spanned across the secondary beams provided between the main beams (D) All of these
Description : An R.C.C. roof slab is designed as a two way slab if (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
Last Answer : Answer: Option B
Description : A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be (A) 2/3 (B) 3/2 (C) 5/8 (D) 8/5
Last Answer : (D) 8/5
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
Description : Beams of uniform strength are preferred to those of uniform section because these are economical for (A) Large spans (B) Heavy weights (C) Light weights (D) Short spans
Last Answer : (A) Large spans
Description : Basic values of span/effective depth ratios to be used for beams and slabs with spans [ A ] Less than 10m [ B ] Less than 20 m [ C ] 10 m- 20 m [ D ] More than 20 m
Last Answer : [ A ] Less than 10m
Description : A reinforced concrete slab is 75 mm thick. The maximum size of reinforcement bar that can be used is (a) 6 mm diameter (b) 8 mm diameter (c) 10 mm diameter (d) 12 mm diameter
Last Answer : (b) 8 mm diameter
Description : The foundation which consists of a thick reinforced cement slab covering whole area to support heavy concentrated structural loads, is known as (A) Combined footing (B) Strap footing (C) Raft footing (D) None of these
Last Answer : Option C
Description : Long and short spans of a two way slab are ly and lx and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. According to Rankine Grashoff theory (A) (wx /wy ) = (ly /lx ) (B) (wx/wy) = (ly/lx)² (C) (wx /wy ) = (ly /lx )4 (D) None of these
Description : If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is (A) 200 cm (B) 300 cm (C) 150 cm (D) 100 cm
Description : Why is the span length ratio of end span/approach span to its neighboring inner spans usually about 0.75?
Last Answer : From aesthetic point of view, an odd number of spans with a decrease in length in the direction of abutment is desirable. Moreover, spans of equal length are found to be boring. However, the ... the last span in a continuous bridge while approach span refers top the first span of a bridge.
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
Description : The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is (A) 25 (B) 30 (C) 35 (D) 40
Description : The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is (A) 35 (B) 25 (C) 30 (D) 20
Description : The maximum ratio of span to depth of a slab simple supported and spanning in two directions, is (a) 25 (b) 30 (c) 35 (d) 40
Last Answer : (c) 35
Description : The maximum ratio of span to depth of a slab simply supported and spanning in one direction is (a) 35 (b) 25 (c) 30 (d) 20
Last Answer : (c) 30
Description : The span/over all depth ratio for a simply supported two-way slab according to IS : 456- 2000 is given by [ A ] 20 [ B ] 28 [ C ] 32 [ D ] 40
Last Answer : [ B ] 28
Description : Which one of the following statements is not correct with respect to PSC beams? (a) Loss due to shrinkage is proportional to water-cement ratio used in concrete (b) Loss due to creep is ... to the modulus of elasticity of concrete (d) Loss due to friction occurs in post tensioned concrete members
Last Answer : (c) Loss due to elastic deformation is directly proportionally to the modulus of elasticity of concrete
Description : Steel beam theory is used for (A) Design of simple steel beams (B) Steel beams encased in concrete (C) Doubly reinforced beams ignoring compressive stress in concrete (D) Beams if shear exceeds 4 times allowable shear stress
Description : According to the steel beam theory of doubly reinforced beams (A) Tension is resisted by tension steel (B) Compression is resisted by compression steel (C) Stress in tension steel equals the stress in compression steel (D) All the above
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 : 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 : Steel Beam theory is a method of designing [ A ] Balanced sections [ B ] Critical sections [ C ] Singly reinforced beams [ D ] Doubly reinforced beams
Last Answer : [ D ] Doubly reinforced beams
Description : While compared with singly reinforced beams, the depth of doubly reinforced beam is [ A ] Greater [ B ] Lesser [ C ] almost equal [ D ] twice
Last Answer : [ B ] Lesser
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 : In a cantilever retaining wall without a heel slab (A) Thickness of the stem is kept same throughout (B) Base slab is made 10 cm thicker than the stem (C) Width of the base slab is kept 0.7 time the total height of the wall (D) All the above
Description : .Freely supported beams are assumed to be fixed beams if subjected to a. end loads which makes displacement zero b. end moments c. end couples which makes slope zero d. moments
Last Answer : c. end couples which makes slope zero
Description : Write the values of stiffness factor for beams. i) Simply supported at both ends ii)/fixed at one end simply supported at other end
Last Answer : i)Stiffness factor for a beam Simply supported at both the ends = 3EI /L ii) Stiffness factor for a beam fixed at one end and simply supported at other end = 4EI/L
Description : It is preferable, that the design of slab should result in [ A ] A balanced section [ B ] An under reinforced section [ C ] Over reinforced section [ D ] None of the above.
Last Answer : [ B ] An under reinforced section
Description : The slab is said to be orthotropically reinforced , when the reinforcement is arranged in; [ A ] Single direction [ B ] Two directions at right angles with equal meshes [ C ] Two directions at right angles with unequal meshes [ D ] At the corners only
Last Answer : [ C ] Two directions at right angles with unequal meshes
Description : To develop complete yield line pattern the slab must be [ A ] Under reinforced [ B ] Over reinforced [ C ] Both (a) and (b) [ D ] None of the above.
Last Answer : [ A ] Under reinforced
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
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 : Design of R.C.C. simply supported beams carrying U.D.L. is based on the resultant B.M. at (A) Supports (B) Mid span (C) Every section (D) Quarter span
Description : A beam of length L supported on two intermediate rollers carries a uniformly distributed load on its entire length. If sagging B.M. and hogging B.M. of the beam are equal, the length of each overhang, is (A) 0.107 L (B) 0.207 L (C) 0.307 L(D) 0.407 L
Last Answer : (B) 0.207 L
Description : A floor constructed with the 4 to 6 mm marble chips, is known (A) Reinforced marble floor (B) Terrazzo floor (C) Marble floor (D) Chip floor
Last Answer : Option B