Top 350+ Solved Turbine MCQ Questions Answer
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
Q. The horizontal portion of the draft tube is usually bent to prevent entry of air from the exit end.
a. True
b. False
c. none
d. none
Q. The efficiency of the draft tube is ratio of
a. Pressure energy by kinetic energy
b. Kinetic energy by Pressure energy
c. Kinetic energy into mechanical energy
d. Pressure into mechanical