If h is the loss due to friction in a pipe. Total losses in strainer and bends m

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Question
If h is the loss due to friction in a pipe. Total losses in strainer and bends may be taken as
Options
A. 0.01 h
B. 0.45 h
C. 0.20 h
D. 0.25 h
E. 0.3 h.

Correct Answer

0.25 h

Water Resources Engineering problems

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1. Precipitation caused due to striking of air masses with a topographical feature, is called
Options
A. orographic precipitation
B. convective precipitation
C. cyclonic precipitation
D. none of these.

2. The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. The total height of confined aquifer H is given by
Options
A. H = h₂ - h₁
B. H = h₁ - h₂
C. H = h₂ + h₁
D. (h₁ + h₂)

3. Pick up the correct statement from the following :
Options
A. Run off and surface run off are the same
B. Run off includes the water flowing over the surface
C. Run off is sometimes called discharge of the river
D. Surface run off is sometimes called stream flow.

5. Pick up the correct statement from the following :
Options
A. The amount of water retained on the surface of soil grains by molecular attraction, is known as pellicular water
B. The degree of resistance to movement of the pellicular water generally expressed by the surface tension
C. The pellicular water held in any soil, is called field capacity
D. The portion of the pellicular water absorbed by the root action of the vegetation, is called available moisture
E. All the above.

6. The area enclosed by the adjacent isohyets of a catchment basin are shown under :

The average depth of annual precipitation in the catchment basin will be
Options
A. 60.0 cm
B. 60.5 cm
C. 61.5 cm
D. 62.5 cm
E. 63.5 cm.

8. For efficient working of a control meter, its throat length is approximately kept
Options
A. equal to the critical depth
B. twice the critical depth
C. three times the critical depth
D. four times the critical depth.

9. Relative humidity is the ratio of actual vapour pressure to the saturation vapour pressure
Options
A. at the same temperature
B. at the same pressure
C. in the same volume
D. in the atmosphere.

10. The rate of evaporation from reservoirs may be determined by
Options
A. pan-measurement method
B. empirical formulae
C. storage equation method
D. energy budget method
E. all the above.

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