1. The height of dowel above the road level should not be more than ?

10 cm

20 cm

30 cm

40 cm

Answer: 30 cm

Explanation:


2. When the difference in weir crest and downstream river bed is limited into 3 metres, generally used is ?

vertical drop weir

drystone slope weir

concrete slope weir

parabolic weir

Answer: concrete slope weir

Explanation:


3. Which of the following statement is wrong ?

In Kennedy's silt theory, no account was taken of silt concentration and bed load

Kennedy did not gave any slope equation

In Kennedy's theory, silt grade and silt charge were not defined

none of the above

Answer: none of the above

Explanation:


4. A canal outlet should ?

be so designed that the farmer cannot temper with its functioning

be simple so that it can be constructed or fabricated by local masons

draw its fare share of silt carried the distributing channel

all of the above

Answer: all of the above

Explanation:


5. In a barrage, crest level is kept ?

low with large gates

high with large gates

high with small gates

low with small gates

Answer: low with large gates

Explanation:


6. The method used for training of rivers is ?

guide bank

dyke or levee

groyne

all of these

Answer: all of these

Explanation:


7. Gibb's module is a type of ?

non-modular outlet

semi-modular outlet

rigid modular outlet

open flume outlet

Answer: rigid modular outlet

Explanation:


8. A solid construction put across the river to raise its water level and divert the water into canal, is known as ?

marginal bund

weir

barrage

dam

Answer: weir

Explanation:


9. The whole period of cultivation from the time when irrigation water is first supplied for preparation of the ground to its last watering before harvesting, is called ?

base period

crop period

kor period

none of these

Answer: base period

Explanation:


10. For irrigation purposes, the p-H value of water should be ?

between 3 and 6

between 6 and 8.5

between 8.5 and 11

more than 11

Answer: between 6 and 8.5

Explanation: