Top 150+ Solved Pumps MCQ Questions Answer

From 61 to 75 of 182

Q. Centrifugal pump works by imparting               

a. Potential energy

b. Kinetic energy

c. Heat energy

d. Electrical energy View Answer

  • b. Kinetic energy

Q. 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 View Answer

  • b. Net positive suction head

Q. When the NPSH is low, it leads to                

a. Breaking

b. Wear

c. Corrosion

d. Cavitation View Answer

  • d. Cavitation View Answer

Q. Wear of impeller can be worsened by                    

a. Draft tube

b. Pump pressure

c. Suspended solenoids

d. Turbine head View Answer

  • c. Suspended solenoids

Q. Which pump is the most efficient centrifugal pump?

a. Electrical pump

b. Reciprocating pump

c. Heat pump

d. Pressure pump View Answer

  • b. Reciprocating pump

Q. Corrosion in the pump is developed due to               

a. Pressure of air

b. Fluid properties

c. Draft tube

d. Tank dimensions View Answer

  • b. Fluid properties

Q. 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 View Answer

  • c. It leads to fast spinning

Q. The energy usage of a pump is determined by               

a. Adiabatic expansion

b. Power required

c. Adiabatic compression

d. Isentropic expansion View Answer

  • b. Power required

Q. For an oil field to have solid control, it needs               

a. Draft tubes

b. Throttle bush

c. Stuffing box

d. Centrifugal pumps View Answer

  • d. Centrifugal pumps View Answer

Q. If we lower the temperature, the water pump cavitation                

a. Increases

b. Decreases

c. Same

d. Independent View Answer

  • b. Decreases

Q. Which among the following is not a centrifugal pump?

a. Sand pumps

b. Froth pumps

c. Slurry pumps

d. Energy pumps View Answer

  • d. Energy pumps View Answer

Q. Centrifugal pumps work under the same principle, but differ in their               

a. Working

b. Functions

c. Dimensions

d. Impeller View Answer

  • b. Functions

Q. If we raise the liquid level in the suction vessel, cavitation             

a. Increases

b. Decreases

c. Same

d. Independent View Answer

  • b. Decreases

Q. Magnetic coupled pumps are also called as                  

a. Series pumps

b. Parallel pumps

c. Froth pumps

d. Drive pumps View Answer

  • d. Drive pumps View Answer

Q. When we change the pump, the cavitation             

a. Increases

b. Decreases

c. Same

d. Independent View Answer

  • b. Decreases
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