FLUID MECHANICS MCQS SET 18

FLUID MECHANICS MCQS SET 18

1. What is the full form of NPSH in a pump?
a) Net pressure suction head
b) Net positive suction head
c) Non-pressure suction head
d) Net pressure super head
 

Answer: b

2. When the NPSH is low, it leads to ________
a) Breaking
b) Wear
c) Corrosion
d) Cavitation
 

Answer: d

3. Wear of impeller can be worsened by __________
a) Draft tube
b) Pump pressure
c) Suspended solenoids
d) Turbine head
 

Answer: c

4. Which pump is the most efficient centrifugal pump?
a) Electrical pump
b) Reciprocating pump
c) Heat pump
d) Pressure pump
 

Answer: b

5. Corrosion in the pump is developed due to _______
a) Pressure of air
b) Fluid properties
c) Draft tube
d) Tank dimensions
 

Answer: b

6. Over heating is a major problem faced in a pump.
a) True
b) False
 

Answer: a

7. What is the effect of cavitation in boat propeller?
a) It recirculates air
b) The pressurizes the air
c) It leads to fast spinning
d) It breaks the bubbles
 

Answer: c

8. Lack of prime is a problem faced in centrifugal pump.
a) True
b) False
 

Answer: a

9. The energy usage of a pump is determined by _______
a) Adiabatic expansion
b) Power required
c) Adiabatic compression
d) Isentropic expansion
 

Answer: b

10. For an oil field to have solid control, it needs _______
a) Draft tubes
b) Throttle bush
c) Stuffing box
d) Centrifugal pumps
 

Answer: d