Top 250+ Solved Fluid Mechanics and Machinery MCQ Questions Answer

From 76 to 90 of 202

Q. Coefficient of friction of a laminar flow is 

a. re/16

b. re/64

c. 16/re

d. 64/re

  • c. 16/re

Q. TOPIC 3.1 NEED FOR DIMENSIONAL ANALYSIS - METHODS OF DIMENSIONAL ANALYSIS

a. botanical science

b. zoological science

c. chemistry

d. physics

  • c. chemistry

Q. Which among the following is a standard scale for a similitude?

a. 1:250

b. 1:50

c. 1:25

d. 1:100

  • c. 1:25

Q. The cylinder of reciprocating cylinder is made up of  

a. cast iron

b. wrought iron

c. aluminium

d. copper

  • a. cast iron

Q. The higher discharge valve line holds the discharge valve  

a. open

b. closed

c. stop functioning

d. automatic

  • b. closed

Q. Reciprocating pumps are also called as

a. force pumps

b. mass pumps

c. heat pumps

d. speed pumps

  • a. force pumps

Q. Reciprocating pumps are classified according to  

a. drag force

b. number of cylinders

c. shock waves

d. flow speed

  • b. number of cylinders

Q. Simple hand operating pump is also called as  

a. froth pump

b. bicycle pump

c. multistage pumps

d. centrifugal pumps

  • b. bicycle pump

Q. Internal cavitation in reciprocating pumps occurs due to  

a. drag force

b. cyclic stress

c. shock waves

d. flow speed

  • c. shock waves

Q. category of 

a. energy absorbing machines

b. energy generating machines

c. power absorbing machines

d. energy transfer machines

  • d. energy transfer machines

Q. The electric power which is obtained from hydraulic energy 

a. thermal power

b. mechanical power

c. solar power

d. hydroelectric power

  • d. hydroelectric power

Q. generating power 

a. thermal power

b. nuclear power

c. hydroelectric power

d. electric power

  • c. hydroelectric power

Q. Pen stocks are made up of 

a. steel

b. cast iron

c. mild steel

d. wrought iron

  • a. steel

Q. turbines, if vanes are fixed to hub of turbine

a. propeller turbine

b. francis turbine

c. kaplan turbine

d. pelton turbine

  • a. propeller turbine
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