Steam Nozzles and Turbines MCQ with Answers

Steam Nozzles and Turbines MCQ with Answers

31) In reaction turbines, the axial thrust is due to

Answer is:

both (a) and (b)

32) Which of the following statement is correct?

Answer is:

all of the above

33) A binary vapour plant consists of

Answer is:

all of these

Explanation:

A binary vapour plant consists of
* steam turbine
* steam condenser
* mercury boiler

34) In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p₂) will be

Answer is:

5.46 bar

35) The stage efficiency (?_S) is given by (where ?_B = Blading efficiency, and ?_N = Nozzle efficiency)

Answer is:

?_S = ?_B x ?_N

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