Centrifugal Pumps multiple choice questions
Centrifugal Pumps
1. The rotational kinetic energy comes from ______a) Engine motor
b) Pump
c) Tank
d) Draft tube
Answer: Engine motor
2. The inlet passage of water entry is controlled by ________
a) Head race
b) Gate
c) Tail race
d) Pump
Answer: Gate
3. The main function of centrifugal pumps are to ________
a) Transfer speed
b) Transfer pressure
c) Transfer temperature
d) Transfer energy
Answer: Transfer energy
4. The main function of nozzle is to __________
a) Varying temperatures
b) Pressure variations
c) Load variations
d) Heat variations
Answer: Pressure variations
5. Centrifugal pumps transfer energy from _______
a) Rotor to fluid
b) Fluid to rotor
c) Draft to rotor
d) Rotor to draft
Answer: Rotor to fluid
6. The fluid coming into the centrifugal pump is accelerated by ________
a) Throttle
b) Impeller
c) Nozzle
d) Governor
Answer: Impeller
7. Turbines and compressors work with the gas, while centrifugal pump transfers energy.
a) True
b) False
Answer: True
8. Turbomachines work under ________
a) Newtons first law
b) Newtons second law
c) Newtons third law
d) Kepler’s law
Answer: Newtons second law
9. Centrifugal pumps are used to transport ________
a) Pressure
b) Speed
c) Power
d) Fluid
Answer: Fluid
10. With the increase in load, Energy in the turbine________
a) Decreases
b) Increases
c) Remains same
d) Independent
Answer: Decreases
11. Centrifugal pump is a_________
a) Turbomachinery
b) Flow regulating device
c) Drafting device
d) Intercooling device
Answer: Turbomachinery
12. Centrifugal pumps transport fluids by converting _________
a) Kinetic energy to hydrodynamic energy
b) Hydrodynamic energy to kinetic energy
c) Mechanical energy to kinetic energy
d) Mechanical energy to Hydrodynamic energy
Answer: Kinetic energy to hydrodynamic energy
13. When the balancing of the turbine is disturbed, we use ________
a) Throttle governing
b) Steam governing
c) Nozzle governing
d) Emergency governing
Answer: Emergency governing
14. Centrifugal pumps are a sub class of dynamic axisymmetric work absorbing turbomachinery.
a) True
b) False
Answer: True
15. Which among the following control the flow rate?
a) Valve
b) Pump
c) Head
d) Tank pipe
Answer: Valve
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