Estimate and Costing Sheet 8

1) Question.

Berms are provided in canals if these are
Answer.
- 1
  
  fully in excavation
- 2
  
  partly in excavation and partly in embankment
- 3
  
  fully in embankment
- 4
  
  All the above
Answer: 2

Explanation:
2) Question.

A cement concrete road is 1000 m long,8m wide and 15 cm thick over the sub-base of 10 cm thick gravel, The cubic content of concrete (1:2:4) for the road specified
Answer.
- 1
  
  300 $m^{3}$
- 2
  
  600 $m^{3}$
- 3
  
  900 $m^{3}$
- 4
  
  1200 $m^{3}$
Answer: 4

Explanation:
3) Question.

A cement concrete road is 1000 m long,8m wide and 15 cm thick over the sub-base of 10 cm thick gravel.The box cutting in road crust is
Answer.
- 1
  
  500 $m^{3}$
- 2
  
  1000 $m^{3}$
- 3
  
  1500 $m^{3}$
- 4
  
  2000 $m^{3}$
Answer: 4

Explanation:
4) Question.

A portion of an embankment having a uniform upgradient 1 in 500 is circular with radius 1000m of the centre line.If the height of the bank is 1m at the lower end,and side slopes 2:1,the earth work involved
Answer.
- 1
  
  26,000 $m^{3}$
- 2
  
  26,500 $m^{3}$
- 3
  
  27,000 $m^{3}$
- 4
  
  27,500 $m^{3}$
Answer: 3

Explanation:
5) Question.

Pick up the correct statement from the following: $\cdot$
Answer.
- 1
  
  If the bed level is above N.S.L.the canal is called fully in banking and the berms are designed as 3 d where d is full supply depth of water (F.S.D)
- 2
  
  Area of canal in cutting=BD+ $S d^{2}$ where B=bed width,d=depth of cutting and S is the side slope
- 3
  
  If F.S.L is above N.S.L the canal is called partly in cutting and partly in filling and berms are designed as 2d where d is full supply depth
- 4
  
  All the above
Answer: 4

Explanation:
6) Question.

The area of the cross-section of a road fully in banking shown in Fig. is
Answer.
- 1
  
  (sb^2+r^2(2bd+Sd^2)) / r^2 - S^2
- 2
  
  (Sb^2+r^2(2bd-Sd^2)) / r^2 - S^5
- 3
  
  (sb^2+r^2(2bd+sd^2)) / r - s
- 4
  
  (sb^2+r^2(2bd+Sd^2)) / r - S
Answer: 1

Explanation:
7) Question.

The cross-section of a road partly in banking and partly in cutting is shown in Fig. The area of the shaded portion is
Answer.
- 1
  
  (1/2) x (b-rd)^2 / (r-s)
- 2
  
  (1/3) x (b-rd)^2 / (r-s)
- 3
  
  (1/2) x (b+rd)^2 / (r-s)
- 4
  
  (1/3) x (b-rd)^2 / (r-5)
Answer: 1

Explanation:
8) Question.

The ground surface slopes 1 in 50 along a proposed railway embankment 150 m m length The height of the embankment at zeroi chainage is 0.5 m,the width is 11 m and side slopes 2:1. If the falling gradient of the embankment is 1 in 150, the quantity of the earth work calculated by prismoidal formula,is
Answer.
- 1
  
  3250 $m^{3}$
- 2
  
  3225 $m^{3}$
- 3
  
  3275 $m^{3}$
- 4
  
  3300 $m^{3}$
Answer: 2

Explanation:
9) Question.

The reduced levels of points, 30 metres apart along the longitudinal section of a road portion between chainages 5 and 9 are shown in Fig.24.4.If there is a uniform up-gradient of the road 120 in 1,the chainage of the point with no filling or cutting is
Answer.
- 1
  
  (6+15)chains
- 2
  
  (6+12) chains
- 3
  
  (6+18) chains
- 4
  
  none of these
Answer: 2

Explanation:
10) Question.

The area of a sloping surface of a protective embankment of mean height d,side slopes S:1 and length L is
Answer.
- 1
  
  dxdxs
- 2
  
  sq. root [d^2 x (ds)^2]
- 3
  
  L.D sq. rt (1+s^2)
- 4
  
  2L.D sq. rt (1+s^2)
Answer: 3

Explanation:

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