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Engineering
Mechanical
ME Set-1
Steam Nozzles and Turbines
18

Steam Nozzles and Turbines MCQ with Answers

18) The reheat factor is the ratio of the

cumulative heat drop to the isentropic heat drop

isentropic heat drop to the heat supplied

total useful heat drop to the total isentropic heat drop

none of the above

Answer is:

cumulative heat drop to the isentropic heat drop

Steam Nozzles and Turbines MCQ with Answers

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Related Steam Nozzles and Turbines MCQ with Answers

19) The turbine blades do not change the direction of steam issuing from the nozzle.

Right

Wrong

Answer is:

Wrong

20) Thermal equilibrium means that the flow of steam is

isothermal

isentropic

hyperbolic

polytropic

Answer is:

isentropic

21) When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be

choked

underdamping

overdamping

none of these

Answer is:

underdamping

22) The ratio of the workdone on the blades to the energy supplied to the blades, is called

blading efficiency

nozzle efficiency

gross or stage efficiency

mechanical efficiency

Answer is:

blading efficiency

Steam Nozzles and Turbines MCQ with Answers

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