According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is______________?

A. Half of the width of the slab
B. Two -third of the width of the slab
C. Three-fourth of the width of the slab
D. Four-fifth of the width of the slab

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

In case the factor of safety against sliding is less than 1.5, a portion of slab is constructed downwards at the end of the heel slab, which is known as___________________?

A. A key
B. A cut-off wall
C. A rib
D. All the above

The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept______________?

A. 0.7
B. 0.8
C. 0.9
D. 0.6

the column head support a flat slab, is generally kept The diameter of_____________?

A. 0.25 times the span length
B. 0.25 times the diameter of the column
C. 4.0 cm larger than the diameter of the column
D. 5.0 cm larger than the diameter of the column

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

The load stress of a section can be reduced by______________?

A. Decreasing the lever arm
B. Increasing the total perimeter of bars
C. Replacing larger bars by greater number of small bars
D. Replacing smaller bars by greater number of greater bars

In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear________________?

A. Decreases
B. Increases
C. Remains unchanged
D. First increases and then decreases

Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by________________?

A. 25%
B. 50%
C. 75%
D. 90%

Contact pressure beneath a rigid footing resting on cohesive soil is_________________?

A. Less at edges compared to middle
B. More at edges compared to middle
C. Uniform throughout
D. None of the above