Mechanical Engineering - Steam Nozzles and Turbines

Exercise :: Steam Nozzles and Turbines - Section 1

16. 

The turbine, in which the general direction of the steam flow is parallel to the turbine axis, is called axial flow turbines

A. True
B. False

Answer: Option A

Explanation:

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17. 

The critical pressure gives the velocity of steam at the throat equal to the velocity of sound.

A. Agree
B. Disagree

Answer: Option A

Explanation:

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18. 

The reheat factor is the ratio of the

A. cumulative heat drop to the isentropic heat drop
B. isentropic heat drop to the heat supplied
C. total useful heat drop to the total isentropic heat drop
D. none of the above

Answer: Option A

Explanation:

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19. 

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

A. True
B. False

Answer: Option B

Explanation:

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20. 

Thermal equilibrium means that the flow of steam is

A. isothermal
B. isentropic
C. hyperbolic
D. polytropic

Answer: Option B

Explanation:

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