Irrigation Engineering Online Test - Paper 3 »Exclusive Quiz

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Vikash chaudhary

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1 / 30

1. *Borrow pits are preferably located in the field

a) on both sides of the canal

b) in the central half section of the canal

c) on the left side of the canal

d) on the right side of the canal

2 / 30

2. The aqueduct or super passage type of cross drainage headworks are used when

a) high flood drainage discharge is small

b) high flood drainage discharge is large and short-lived

c) high flood drainage discharge is large and continues for a long time

d) none of the above

3 / 30

3. As compared to a gravity dam, earthen dams

a) require a sound rock foundation

b) require less skilled labour

c) require skilled labour

d) require more cost

4 / 30

4. *The width and length of meander vary approximately with

a) discharge

b) square root of discharge

c) cube root of discharge

d) square of discharge

5 / 30

5. *According to Manning's formula, the velocity is inversely proportional to

a) rugosity coefficient

b) HMD

c) gradient

d) all of the above

6 / 30

6. Percolation loss is less in the case of

a) sandy soil

b) black cotton soil

c) silty soil

d) all of the above

7 / 30

7. A crop that takes more than 4 months to mature is called

a) solid crop

b) long crop

c) hard crop

d) cash crop

8 / 30

8. An artesian aquifer is one where

a) water surface under the ground is at atmospheric pressure

b) water is under pressure between two impervious strata

c) water table serves as the upper surface of the zone of saturation

d) none of the above

9 / 30

9. A straight glacis type fall with a baffle platform and a baffle wall is called

a) montague fall

b) sarda type fall

c) glacis fall

d) inglis fall

10 / 30

10. Trap efficiency of a reservoir is a function of

a) capacity/Inflow ratio

b) capacity/outflow ratio

c) the total inflow

d) age of the reservoir

11 / 30

11. SHAFT spillway is the same as

a) conduit spillway

b) tunnel spillway

c) morning glory spillway

d) trough spillway

12 / 30

12. *Attracting type spurs

a) pointing up stream

b) pointing down stream

c) parallel to bank

d) perpendicular to bank

13 / 30

13. Bed bars provided in a canal are made of

a) cement concrete

b) brick masonry

c) iron rod

d) both (a) and (b) above

14 / 30

14. River on alluvial plains is usually

a) aggrading type

b) degrading type

c) meandering type

d) stable type

15 / 30

15. *Meandering of the river increases the length of the river while cut-off

a) increase in the width of the river

b) decrease the length of the river

c) increase the length of the river

d) decrease the width of the river

16 / 30

16. The name of the structure that destroys the energy is called

a) stilling basin

b) reservoir

c) head regulator

d) all of the above

17 / 30

17. The crop that improves the nitrogen content of the soil is

a) aquatic crop

b) perennial crop

c) leguminous crop

d) all of the above

18 / 30

18. The structures constructed transverse to the river flow, which extend from bank to the river, are called

a) groynes

b) spurs

c) platform

d) both (a) and (b) of above

19 / 30

19. When the base period of the crop is 100 days, the delta for the crop will be if the duty of the crop is 432 he/cumec.

a) 432 cm

b) 200 cm

c) 864 cm

d) 100 cm

20 / 30

20. In a canal syphon, flow is

a) pipe flow

b) under negative pressure

c) under atmospheric pressure

d) none of the above

21 / 30

21. *Marginal bund/leeve is an earthen dam constructed roughly

a) parallel to the river

b) perpendicular to the river

c) acute angle with the river

d) obtuse angle with the river

22 / 30

22. If the RLs of canal bed level and high flood level of drainage are 210.0 m and 212.0 m respectively, then the cross drainage work will be

a) aqueduct

b) super passage

c) syphon aqueduct

d) none of the above

23 / 30

23. The methods used for drilling a tube well in compacted rock materials is

a) wash boring

b) percussion method

c) hydraulic rotary

d) all of the above

24 / 30

24. *Diversion headwork is constructed to

a) lower water level in the river

b) regulate the intake of water into the canal

c) regulate silt entry into the canal

d) all of the above

25 / 30

25. The fall is designed and constructed to satisfy the condition that

a) the velocity of approach should be minimum

b) it should be able to admit variations of water levels in the canal

c) bed, bank, and downstream position should be safe against erosion due to the excess energy of flow

d) all of the above

26 / 30

26. The group of canals which avoid cross drainage work

a) watershed and contour

b) contour and side slope

c) side slope and water shed

d) none of the above

27 / 30

27. *Groynes are provided

a) traverse to the river

b) longitudinal to the river

c) parallel to the river

d) none of the above

28 / 30

28. *Drop structures in the canal are provided for

a) providing a bridge

b) energy dissipation

c) maintaining ground slope

d) creating high velocity

29 / 30

29. *The crops require maximum water during

a) first watering when the crop has grown a few centimeters

b) first watering before sowing the crops

c) last watering before harvesting

d) all of the above

30 / 30

30. *Bell bunds are

a) guide bands for training a river at the site of a bridge or weir

b) barriers made of timber, filled with stone or other suitable material

c) fixed distances over which surface floats are lined

d) none of the above

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Irrigation Engineering Online Test – Paper 3

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