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Engineering
Mechanical
ME Set-1
Steam Nozzles and Turbines
94

Steam Nozzles and Turbines MCQ with Answers

94) When the nozzle operates with the maximum mass flow, the nozzle is said to be

choked

underdamping

overdamping

none of these

Answer is:

choked

Steam Nozzles and Turbines MCQ with Answers

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Related Steam Nozzles and Turbines MCQ with Answers

95) In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,

velocity increases

velocity decreases

velocity remains constant

pressure remains constant

Answer is:

velocity decreases

96) The ratio of the energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam is called mechanical efficiency.

Yes

No

Unknown

None

Answer is:

No

97) A steam nozzle converts

heat energy of steam into kinetic energy

kinetic energy into heat energy of steam

heat energy of steam into potential energy

potential energy into heat energy of steam

Answer is:

heat energy of steam into kinetic energy

98) The maximum discharge of steam through a convergent-divergent nozzle depends upon

area of nozzle at throat

initial pressure and volume of steam

final pressure ofsteam leaving the nozzle

area of nozzle at throat and initial pressure and volume of steam

Answer is:

area of nozzle at throat and initial pressure and volume of steam

Steam Nozzles and Turbines MCQ with Answers

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