Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer

From 61 to 75 of 1033

Q. What is the purpose of inducer in a froth pump?

a. It recirculates air

b. The pressurizes the air

c. Froths are generated

d. It breaks the bubbles View Answer

  • d. It breaks the bubbles View Answer

Q. A multistage centrifugal pumps has more than two               

a. Pumps

b. Impellers

c. Turbines

d. Magnetic pumps View Answer

  • b. Impellers

Q. The impeller is mounted on a                

a. Draft tube

b. Throttle bush

c. Stuffing box

d. Shaft View Answer

  • d. Shaft View Answer

Q. At each stage the fluid is directed                

a. Towards the centre

b. Away the centre

c. Towards the surface

d. Away from the centre View Answer

  • a. Towards the centre

Q. If the cylinder is filled with fuel or air it is said to be                      

a. 100% efficient

b. Transfer efficient

c. Nil efficient

d. Flow effective View Answer

  • a. 100% efficient

Q. SOH in a pump stands for_            

a. Shut Off head

b. Shut off heat

c. Shut off hybrid

d. Set off head View Answer

  • a. Shut Off head

Q. At higher pressures, the impeller is connected in              

a. Series

b. Parallel

c. Equilibrium

d. Series and parallel View Answer

  • a. Series

Q. When the flow output is higher, impellers are connected in               

a. Series

b. Parallel

c. Equilibrium

d. Series and parallel View Answer

  • b. Parallel

Q. The point at which piping system controls the flow rate is called             

a. Pressure point

b. Static lift

c. Operating point

d. Flow point View Answer

  • c. Operating point

Q. What is the common application of multistage centrifugal pump?

a. Mineral industries

b. Boiler feed water pump

c. Removes ores

d. Detects oil View Answer

  • b. Boiler feed water pump

Q. A multistage centrifugal pump produces a pressure of                    

a. 10 Pa

b. 100 MPa

c. 21 MPa

d. 150 MPa View Answer

  • c. 21 MPa

Q. All energy that is transferred from the fluid is derived from                

a. Electrical energy

b. Mechanical energy

c. Thermal energy

d. Chemical energy View Answer

  • b. Mechanical energy

Q. The point at which the centrifugal pump operates at maximum efficiency is called               

a. Duty point

b. Flow point

c. Static point

d. Operating point View Answer

  • a. Duty point

Q. What does TDH stand for?

a. Total dynamic head

b. Total depth head

c. Tight drum head

d. Target dynamic head View Answer

  • a. Total dynamic head

Q. The mechanical energy can be measured by             

a. Adiabatic expansion

b. Isentropic compression

c. Adiabatic compression

d. Isentropic expansion View Answer

  • b. Isentropic compression
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