Freshers India

Engineering - Civil Enginnering

You Are Here :: Home > Civil Engineering > Irrigation water resources engg and hydrology-Questions

55.

For wave action in dams, the maximum height of freeboard is generally taken to be equal to
where hw is height of wave.

A.	0.5 hw	B.	0.75 hw
C.	1.25 hw	D.	1.50 hw

56.

As compared to gravity dams, earthen dams

A.	are costlier	B.	are less susceptible to failure
C.	require sound rock foundations	D.	require less skilled labour

57.

The most suitable material for the central impervious core of a zoned embankment type dam is

A.	clay	B.	coarse sand
C.	silty clay	D.	clay mixed with fine sand

58.

Seepage through embankments in an earthen dam is controlled by

A.	drainage filters	B.	relief wells
C.	drain trenches	D.	provision of downstream berms

59.

Seepage through foundation in an earthen dam is controlled by providing

A.	rock toe	B.	horizontal blanket
C.	impervious cut off	D.	chimney drain

60.

The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are

A.	at right angle and parallel to weir crest	B.	parallel and at right angle to weir crest
C.	parallel to weir crest in both	D.	at right angle to weir crest in both

« prev

Catch Us on