13) The efficiency of reaction turbine is maximum when (where ? = Angle made by the absolute velocity (V) at inlet)

V_b = 0.5 V cos ?

V_b = V cos ?

V_b = 0.5 V² cos ?

V_b = V² cos ?

Answer is:

V_b = V cos ?

Steam Nozzles and Turbines MCQ with Answers

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14) A regenerative steam cycle renders

increased work output per unit mass of steam

decreased work output per unit mass of steam

increased thermal efficiency

decreased work output per unit mass of steam as well as increased thermal efficiency

Answer is:

decreased work output per unit mass of steam as well as increased thermal efficiency

15) De-Laval turbine is a

single rotor impulse turbine

multi-rotor impulse turbine

impulse reaction turbine

none of these

Answer is:

single rotor impulse turbine

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

Right

Wrong

Answer is:

Right

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

Agree

Disagree

Answer is:

Agree

Steam Nozzles and Turbines MCQ with Answers

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13) The efficiency of reaction turbine is maximum when (where ? = Angle made by the absolute velocity (V) at inlet)

Vb = V cos ?

Steam Nozzles and Turbines MCQ with Answers

Related Steam Nozzles and Turbines MCQ with Answers

14) A regenerative steam cycle renders

decreased work output per unit mass of steam as well as increased thermal efficiency

15) De-Laval turbine is a

single rotor impulse turbine

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

Right

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

Agree

Steam Nozzles and Turbines MCQ with Answers

V_b = V cos ?