Beams and Slabs -3

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1. For a continuous slab of 3 m x 3.5 m size the minimum overall depth of slab to satisfy vertical deflection limits is

A) 5 cm
B) 7.5 cm 
C) 10 cm
D) 12 cm

... Answer is C
 

 

2. The minimum reinforcement using mild steel in slab should not be less than

A) 0.10%
B) 0.12%
C) 0.15%
D) 2.0%

... Answer is C

 

3. In the rcc slab, the spacing between main reinforcement should not exceed 

A) three times its effective depth
B) four times its effective depth
C) five times its effective depth
D) six times its effective depth

... Answer is A

 

4. The reinforced concrete beam curved in plane is designed for

A) bending moment and shear 
B) bending moment and torsion 
C) shear and torsion 
D) bending moment, shear and torsion

... Answer is D

 

5. Flexural collapse in over-reinforced beam is due to 

A) compression failure
B) tension failure
C) yielding of stress
D) none of these

... Answer is B

 

6. spacing of shear stirrups in a rectangular RC beam is

A) kept constant throughout the span
B) decreased towards the centre of the beam 
C) increased at ends 
D) increased towards the centre of the span 

... Answer is D

 

7. Permissible shear stress in concrete is a function of 

A) grade of concrete
B) grade of steel 
C) percentage of steel reinforcement
D) percentage of steel reinforcement and grade of concrete

... Answer is D

 

8. The slab is designed as one way if the ratio of long span to short span is

A) less than 1
B) greater than 2
C) between 1 and 1.5
D) between 1.5 and 2

... Answer is B

 

9. For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine's theory

A) is always less than 1
B) is always greater than 1
C) can be more than 1
D) can be less than 1

... Answer is A

 

10. For a simply supported beam of span 15 m, the minimum effective depth to satisfy the vertical deflection limits should be

A) 600 mm
B) 750 mm
C) 900 mm
D) more than 1 m

... Answer is D

 

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