Civil Engineering - GATE Exam Questions

41. 

In a compaction test, as the compaction effort is increased, the optimum moisture content

A. decreases
B. remains same
C. increases
D. increases first and thereafter decreases

Answer: Option A

Explanation:

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42. 

The peak discharge of the instantaneous unit hydrograph of a basin, when compared to the peak discharge of a 4-hour unit hydrograph of that basin, would be

A. greater
B. equal
C. equal or lesser
D. lesser

Answer: Option A

Explanation:

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43. 

The drop manholes are provided in a sewerage system when there is

A. change in alignment of sewer line
B. change in size of sewers
C. change in the elevation of ground level
D. change from gravity system to pressure system

Answer: Option C

Explanation:

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44. 

The reaction time for calculation of stopping distance may be assumed as

A. 5 secs
B. 2.5 secs
C. 0.5 secs
D. 10.0 secs

Answer: Option B

Explanation:

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45. 

The percentage error in the computed discharge over a triangular notch corresponding to an error of 1% in the measurement of the head over the notch, would be

A. 1.0
B. 1.5
C. 2.0
D. 2.5

Answer: Option D

Explanation:

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