Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. Which of the following efficiencies for Kaplan Turbine is defined as the ratio between the power available at the shaft to the power supplied by water at the inlet?
a. Hydraulic efficiency
b. Volumetric efficiency
c. Mechanical efficiency
d. Overall efficiency
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 simple elbow draft tube helps to cut down the cost of excavation.
a. True
b. False
c. none
d. none
Q. The exit diameter for a simple elbow draft tube should be
a. Large
b. Small
c. Very small
d. Same
Q. Properties that do not affect a draft tube is
a. Pressure
b. Temperature
c. Pressure velocity
d. Velocity
Q. The other name for elbow with varying cross section tube is called
a. Pressure tube
b. Bent draft tube
c. Velocity tube
d. Sink tube