1. The hydraulic gradient line represents the variation of

[A] Datum head in the direction of flow

[B] Velocity head in the direction of flow

[C] Piezometric head in the direction of flow 

[D] Total energy in the direction of flow
Answer: Option C

 

2. The major loss of hydraulic energy in pipe flow occurs in long pipe due to
[A] Sudden enlargement
[B] Friction
[C] Sudden contraction
[D] Gradual enlargement or contraction

Answer: Option B

 

3. In case of flow through parallel pipes
[A] The head loss for all the pipes is same
[B] The head loss is different in different pipes
[C] The head loss is the sum of head losses in the various pipes
[D] None of the above

Answer: Option A

 

4. Darcy Weisbach friction factor for head loss computation can be obtained from
[A] Moody’s diagram
[B] Strange curve
[C] Specific energy diagram
[D] Blench’s curve

Answer: Option A

 

5. Moody’s diagram is drawn between 
[A] Friction factor and Reynold’s number
[B] Friction factor, Reynold’s number and relative roughness
[C] Friction factor and relative roughness
[D] None of the above

Answer: Option A

 

 

 

FLUID MECHANICS MCQs 👇

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