RCC Sheet 32

1) Question.

In a slab, the pitch of the main reinforcement should not exceed its effective depth
Answer.
- 1
  
  three times
- 2
  
  four times
- 3
  
  five times
- 4
  
  two times
Answer: 1

Explanation:
2) Question.

The percentage of minimum reinforcement of the gross sectional area in slabs
Answer.
- 1
  
  0.10%
- 2
  
  0.12%
- 3
  
  0.15%
- 4
  
  0.18%
Answer: 3

Explanation:
3) Question.

The amount of reinforcement for main bars in a slab, is based upon
Answer.
- 1
  
  mimumum bending moment
- 2
  
  maximum bending momemt
- 3
  
  maximum shear force
- 4
  
  minimum shear force
Answer: 2

Explanation:
4) Question.

The maximum ratio of span to depth of a centilever slab,
Answer.
- 1
  
  8
- 2
  
  10
- 3
  
  12
- 4
  
  14
Answer: 3

Explanation:
5) Question.

The maximum ratio of span to depth of a slab simply suported and spanning in two directions,
Answer.
- 1
  
  25
- 2
  
  30
- 3
  
  35
- 4
  
  40
Answer: 3

Explanation:
6) Question.

The maximum ratio of span to depth of a slab simply supported and spanning in one direction,
Answer.
- 1
  
  35
- 2
  
  25
- 3
  
  30
- 4
  
  20
Answer: 3

Explanation:
7) Question.

The effective span of a simply supported slab, is
Answer.
- 1
  
  distance between the centres of the bearings
- 2
  
  clear distance between the inner faces of the walls plus twice the thickness of the wall
- 3
  
  clear span plus effective depth of the slab
- 4
  
  none of these
Answer: 2

Explanation:
8) Question.

Long and short spans of a two way slab are $l_{y}$ and $l_{x}$ and load on the slab acting on strips parallel to $l_{x}$ and $l_{y}$ be $w_{x}$ and $w_{y}$ respectively. According to Rankine Grasshoff theory
Answer.
- 1
  
  $\frac{W_{x}}{W_{y}} = \frac{l_{y}}{l_{x}}$
- 2
  
  $\frac{w_{x}}{w_{y}} = {(\frac{l_{y}}{l_{x}})}^{3}$
- 3
  
  $\frac{W_{x}}{W_{y}} = {(\frac{l_{y}}{l_{x}})}^{3}$
- 4
  
  $\frac{W_{x}}{W_{y}} = {(\frac{l_{y}}{l_{x}})}^{4}$
Answer: 4

Explanation:
9) Question.

The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept
Answer.
- 1
  
  0.7
- 2
  
  0.8
- 3
  
  0.9
- 4
  
  0.6
Answer: 3

Explanation:
10) Question.

In a simply supported slab, alternate bars are curtailed at
Answer.
- 1
  
  1/4th of the span
- 2
  
  1/5the of the span
- 3
  
  1/6the of the span
- 4
  
  1/7the of the span
Answer: 4

Explanation:

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