Top 250+ Solved Fluid Mechanics and Machinery MCQ Questions Answer
Q. 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
Q. With the increase in load, Energy in the turbine
a. decreases
b. increases
c. remains same
d. independent
Q. When the balancing of the turbine is disturbed, we use
a. throttle governing
b. steam governing
c. nozzle governing
d. emergency governing
Q. The fluid coming into the centrifugal pump is accelerated by
a. throttle
b. impeller
c. nozzle
d. governor
Q. Reciprocating pump is a
a. negative displacement pump
b. positive displacement pump
c. diaphragm pump
d. emulsion pump
Q. What happens to the reciprocating pump when left untouched?
a. efficiency decreases
b. wear and tear
c. surface expansion
d. pressure change
Q. The cylinder of reciprocating cylinder is made up of
a. cast iron
b. wrought iron
c. aluminium
d. copper
Q. The higher discharge valve line holds the discharge valve
a. open
b. closed
c. stop functioning
d. automatic
Q. Reciprocating pumps are classified according to
a. drag force
b. number of cylinders
c. shock waves
d. flow speed
Q. Simple hand operating pump is also called as
a. froth pump
b. bicycle pump
c. multistage pumps
d. centrifugal pumps
Q. Internal cavitation in reciprocating pumps occurs due to
a. drag force
b. cyclic stress
c. shock waves
d. flow speed