Top 350+ Solved Turbine MCQ Questions Answer
Q. To obtain maximum hydraulic efficiency of pelton turbine, blade velocity should be Times the inlet velocity of jet.
a. Half
b. One quarter
c. Twice
d. Thrice
Q. Among the following which turbine has least efficiency?
a. Pelton turbine
b. Kaplan turbine
c. Francis turbine
d. Propeller turbine
Q. A hydraulic coupling belongs to the category of
a. Energy absorbing machines
b. Energy generating machines
c. Power absorbing 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
Q. At present which is cheapest means of generating power_
a. Thermal power
b. Nuclear power
c. Hydroelectric power
d. Electric Power
Q. Pipes of largest diameter which carry water from reservoir to the turbines is known as_
a. Head stock
b. Tail race
c. Tail stock
d. Pen stock
Q. is an inward radial flow reaction turbine?
a. Pelton turbine
b. Kaplan turbine
c. Francis turbine
d. Propeller 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. is a axial flow reaction turbines, if vanes are fixed to hub of turbine
a. Propeller turbine
b. Francis turbine
c. Kaplan turbine
d. Pelton turbine
Q. Francis and Kaplan turbines are known as
a. Impulse turbine
b. Reaction turbine
c. Axial flow turbine
d. Mixed flow turbine
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. Hydraulic turbines are classified based on
a. Energy available at inlet of turbine
b. Direction of flow through vanes
c. Head at inlet of turbine
d. Energy available, Direction of flow, Head at inlet.
Q. Impulse turbine and reaction turbine are classified based on ?
a. Type of energy at inlet
b. Direction of flow through runner
c. Head at inlet of turbine
d. Specific speed of turbine