Dam – MCQ

1. What is the purpose of constructing a dam?

a) Flood control
b) Irrigation
c) Water supply
d) All of the above

2. The foundation soil for the proposed site of the dam should be examined by the method of

a) Soil exploration
b) By lifting weight
c) Both
d) None of these

3. Reconnaissance survey are conducted to gathering the information of

a) Nature of dam site
b) Location of labour colony
c) Stack yard
d) All of these

4. Contour survey is a part of

a) Geological survey
b) Communication survey
c) Preliminary survey
d) Hydrological survey

5. The cofferdam is a type of dam, which is classified on the basis of

a) Structural behaviour
b) Function
c) Hydraulic behaviour
d) Materials

6. Overflow dam is a type of dam, classified on the basis of

a) Structural behaviour
b) Hydraulic behaviour
c) Materials
d) None

7. Force act on a gravity dam is

a) Self-weight
b) Water pressure
c) Seismic force
d) Uplift pressure
e) All of these

8. The elementary profile of a gravity dam is right angled triangle with base width _

a) [latex]\frac{\rho}{\sqrt{H }}[/latex]
b) [latex]\frac{H}{2\sqrt{\rho }}[/latex]
c) [latex]\frac{H}{\sqrt{\rho }}[/latex]
d) None

9. When the total horizontal force acting on the dam is greater than the total verticle force, then the dam may fail by _

a) Overturning
b) Sliding
c) Over stressing
d) Cracking

10. A low dam is designed on the basis of _____

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Canal Fall – MCQ

Gravity Dam – Hydraulic Structure

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Sandbag Cofferdam

Canal Head Works – MCQ

1. The openings are provided with adjustable gates at the base of the weir and barrage is known as

a) Scouring sluices
b) Under sluices
c) Both (a) and (b)
d) Silt excluder
e) None of these

2. What is the reason to provide silt excluder?

a) To allow heavy silt to enter the canal
b) To prevent fine silt to enter the canal
c) To allow the fine silt to enter the canal
d) To prevent heavy silt to enter the canal

3. What are the reasons behind providing dyke?

a) To protect valuable agricultural land of the surrounding area
b) To prevent the town and village from adverse effects during the heavy flood.
c) It prevents the water from entering the surrounding area
d) All of these

4. The top width of the marginal bank is usually kept as

a) 1 to 2 m
b) 2 to 3 m
c) 3 to 4 m
d) None of these

5. The marginal bank is also known as

a) Levees
b) River bank
c) Canal Bank
d) Rigid Bank

6. The guide bank is also known as

a) Levees
b) Rigid bank
c) Marginal bunds
d) Bell’s bund

7. Which of following are the component part of the diversion headworks

a) Fish ladder
b) Guide bank
c) Silt excluder
d) Divide wall
e) All of these

8. Which of the following is not a component part of the guide bank

a) Shank
b) Sloping apron
c) Launching apron
d) Silt excluder
e) None of these

9. The divide wall is a wall that is constructed at

a) Right angle to the weir
b) Inclined angle to the weir
c) Parallel to the weir
d) None

10. The function of a divide wall is

a) To prevent overturning effect on the weir or barrage
b) To controls the cross current in front of the canal head
c) It provides a straight passageway in front of the canal head
d) All of these

Read More:

Weir and Barrage – MCQ

Canal Lining – MCQ

Canal Section – MCQ

Canal Fall – MCQ