Mechanical Engineering - Steam Nozzles and Turbines

Exercise :: Steam Nozzles and Turbines - Section 1

41. 

The variation of steam pressure in the nozzle depends upon

A. velocity of steam
B. specific volume of steam
C. dryness fraction of steam
D. all of these

Answer: Option D

Explanation:

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42. 

Steam turbines are used for

A. large marine propulsion
B. electric power generation
C. direct drive of fans, compressors, pumps
D. all of these

Answer: Option D

Explanation:

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43. 

Parson's turbine is a

A. simple impulse turbine
B. simple reaction turbine
C. impulse-reaction turbine
D. none of these

Answer: Option B

Explanation:

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44. 

The value of the reheat factor varies from

A. 1.02 to 1.06
B. 1.08 to 1.l0
C. 1.2 to 1.6
D. 1.6 to 2

Answer: Option A

Explanation:

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45. 

The steam enters the nozzle at a

A. high pressure and a low velocity
B. high pressure and a high velocity
C. low pressure and a low velocity
D. low pressure and a high velocity

Answer: Option A

Explanation:

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