67.

68.

69.

70.

71.

72:

73.

74.

75.

The piteh of the main bars in a simply supported slab, should not exceed its effective

depth by :
(A) Three times (B) Four times
(C) Five times (D) Sixtimes

Spacing of stirrups in a rectangular beam, is :
(A) Kept constant throughout the length
(B) Decreased towards the centre of the beam
(C) Increased at the ends
(D) Increased at the centre of the beam

Columns may be made of plain concrete if their unsupported length does not exceed
their least lateral dimensions :

(ಯ 2times (B) 3 1168

(C) 4165 (D) 5 times

The maximum ratio of span to depth of a slab simply supported and spanning in one
direction, is :

(^) 5 B) 25
(0) 80 D) 20
Compression failure of simply supported beam oceurs in :
(A) Balanced section (B) Over reinforced section
(೮) Under reinforced section (D) None of above

Limit state of serviceability for deflection inecluding the effects ഡം to creep,
shrinkage ஹல temperature occurring after erection of partitions and application വ്‌
finishes as applicable to floors and roofs is restricted to :

(A) Span/150 (B) Span/200

(C) Span/250 (D) Span/350

According to IS — 456 2000 maximum spacing of shear reinforcement for concrete
beams in no case shall not exceed :

(ಯ) 250 mm (B) 300 mm
(C) 850 mm (D) 450 mm
In the heel slab of a ecantilever retaining wall, main reinforcement is provided at :
(A) Bottom of slab (B) Top of slab
(C) Centre of slab (D) Sides of slab
The shrinkage in a concrete slab :
(A) Causes shear cracks (B) Causes tension cracks
(C) Causes compression cracks (D) Does not cause any cracking
11 010/2020

[P.T.O.]