Civil Engineering - UPSC Civil Service Exam Questions

46. 

Laboratory vane shear test can also be used to determine

A. Shear parameters of silty sand
B. Shear parameters of sandy clay
C. Liquid limit of silty clay
D. Plastic limit of clayey silt

Answer: Option D

Explanation:

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47. 

Consider the following statements regarding base-line measurements :
1. Very precise measurement can be done only on densely cloudy days or at nights.
2. Error due to application of non-standardised pull on the tape can be either cumulative or compensating type.
3. Intermediate obstructions in the measurement of base-lines can be cleared by erecting towers.
Of these statements :

A. 1, 2 and 3 are correct
B. 1 and 2 are correct
C. 1 and 3 are correct
D. 2 and 3 are correct

Answer: Option C

Explanation:

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48. 

In a hydraulic jump occurring in a horizontal rectangular channel, the sequent depths are 0.3 m and 1.2 m. What is the approximate value of energy loss in the jump ?

A. 1.5 m
B. 0.9 m
C. 0.5 m
D. 0.35 m

Answer: Option C

Explanation:

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49. 

Acidic soils are reclaimed by

A. leaching of the soil
B. using limestone as a soil amendment
C. using gypsum as a soil amendment
D. provision of drainage

Answer: Option B

Explanation:

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50. 

The function of coping is to serve as a :

A. Covering to the wall to throw off water
B. ornamental course between lintel level and roof level
C. Projection from a wall to support a structural member
D. shade against solar radiation

Answer: Option A

Explanation:

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