Irrigation Engineering Mock Test 7

10%

Question 1 of 10

1. The safe depression head for open wells is generally taken to be x times the critical depression head when x is ______

1/6

1/2

1/3

3/4

Question 1 of 10

Question 2 of 10

2. What is the volume of groundwater which can be extracted by gravity drainage from a soil stratum when expressed as percentage fraction of the volume of the soil stratum?

Pellicular water

Field capacity

Available water

Specific yield

Question 2 of 10

Question 3 of 10

3. Arch dams are constructed in _____________

wide valleys with flat side slopes

narrow valley with weak abutments

moderate valleys with strong abutments

narrow valleys with strong abutments

Question 3 of 10

Question 4 of 10

4. The geological formation which may contain water but does not contain any yield is ____________

aquiclude

aquifer

aquifuse

aquitard

Question 4 of 10

Question 5 of 10

5. Which is the fastest method of drilling and especially useful in unconsolidated formations?

Reverse Rotary method

Cable tool method

Hydraulic Rotary method

Water-jet boring method

Question 5 of 10

Question 6 of 10

6. The prominent modern dam which has changed its name several times is _____________

Idukki dam

Hoover dam

Nagarjuna dam

Bhakra dam

Question 6 of 10

Question 7 of 10

7. Coefficient of storage (A) has the dimensions of _____

Dimensionless

L²

L³

Question 7 of 10

Question 8 of 10

8. Which drilling method is best suited for underground formations made of gravel, sand and clayey deposits?

Wash boring method

Percussion drilling

Rotary boring method

Reverse rotary method

Question 8 of 10

Question 9 of 10

9. Specific retention of groundwater is larger in coarse-grained soils.

True

False

Question 9 of 10

Question 10 of 10

10. According to the Hydraulic design, the dams are classified as _________

storage and diversion dams

diversion and detention Dams

overflow and non-overflow dam

arch and buttress dam

Question 10 of 10