Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. How many impellers does a multistage centrifugal pump have?
a. Zero
b. One
c. Exactly two
d. Two and more View Answer
Q. The energy usage in pumping installation is determined by
a. Friction characteristics
b. Pipe diameter
c. Surface tension
d. Thermal expansion View Answer
Q. Which among the following is a friction factor?
a. Newtons factor
b. Darcy’s factor
c. Transfer temperature
d. Heizenberg’s factor View Answer
Q. What is the dimension for Darcy’s friction factor?
a. kg/m
b. N/mm
c. kg
d. Dimensionless View Answer
Q. Formation of bubbles in an impeller is called
a. Cavities
b. Defects
c. Friction
d. Heat burn View Answer
Q. Centrifugal pump works by imparting
a. Potential energy
b. Kinetic energy
c. Heat energy
d. Electrical energy View Answer
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
Q. Wear of impeller can be worsened by
a. Draft tube
b. Pump pressure
c. Suspended solenoids
d. Turbine head View Answer
Q. Which pump is the most efficient centrifugal pump?
a. Electrical pump
b. Reciprocating pump
c. Heat pump
d. Pressure pump View Answer
Q. Corrosion in the pump is developed due to
a. Pressure of air
b. Fluid properties
c. Draft tube
d. Tank dimensions View Answer
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
Q. The energy usage of a pump is determined by
a. Adiabatic expansion
b. Power required
c. Adiabatic compression
d. Isentropic expansion View Answer
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
Q. If we lower the temperature, the water pump cavitation
a. Increases
b. Decreases
c. Same
d. Independent View Answer