Top 250+ Solved Fluid Mechanics and Machinery MCQ Questions Answer
Q. Francis and Kaplan turbines are known as
a. impulse turbine
b. reaction turbine
c. axial flow turbine
d. mixed flow turbine
Q. The important type of axial flow reaction turbines are
a. propeller and pelton turbines
b. kaplan and francis turbines
c. propeller and francis turbines
d. propeller and kaplan turbines
Q. Specific speed of reaction turbine is between?
a. 5 and 50
b. 10 and 100
c. 100 and 150
d. 150 and 300
Q. Impulse turbine is generally fitted at
a. at the level of tail race
b. above the tail race
c. below the tail race
d. about 2.5mts above tail race to avoid cavitations.
Q. Draft tube is also called
a. straight divergent tube
b. simple elbow tube
c. thermal tube
d. elbow tube with varying cross section
Q. A draft tube helps in converting kinetic energy into
a. electrical work
b. mechanical work
c. chemical work
d. thermal work
Q. What is the purpose of a Draft tube?
a. to prevent flow separation
b. to avoid pressure drag
c. to prevent rejection of heat
d. to increase efficiency
Q. Turbine that consists of draft tubes is called as
a. impulse turbine
b. curtis turbine
c. rateau turbine
d. reaction turbine
Q. Which of the following is a 50 percent reaction turbine?
a. parsons turbine
b. curtis turbine
c. rateau turbine
d. pelton wheel
Q. The flow rate of steam is controlled by regulating the
a. steam
b. pressure
c. temperature
d. speed
Q. What is primary objective of steam turbine governing?
a. maintain constant speed
b. maintain constant pressure
c. maintain constant temperature
d. maintain constant expansion