Civil Engineering - Surveying

36. 

The conventional sign shown in below figure represents a

A. bridge carrying railway below road
B. bridge carrying road below railway
C. bridge carrying road and railway at the same level
D. a level crossing.

Answer: Option A

Explanation:

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37. 

Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves

A. embankment on the centre line
B. excavation on the centre line
C. earth work on the centre line
D. none of these.

Answer: Option B

Explanation:

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38. 

Measuring with a 30 m chain, 0.01 m too short, introduces

A. positive compensating error
B. negative compensating error
C. positive cumulative error
D. negative cumulative error.

Answer: Option C

Explanation:

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39. 

Setting out a curve by two theodolite method, involves

A. linear measurements only
B. angular measurements only
C. both linear and angular measurements
D. none of these.

Answer: Option B

Explanation:

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40. 

When the bubble of the level tube of a level, remains central

A. line of sight is horizontal
B. axis of the telescope is horizontal
C. line of collimation is horizontal
D. geometrical axis of the telescope is horizontal.

Answer: Option A

Explanation:

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