Steam Nozzles and Turbines - Data Intensity 4 | Multiple Questions and Answers

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Steam Nozzles and Turbines - Data Intensity 4 Multiple Questions and Answers.

6.	Which of the following statement is correct?

	A.	The efficiency of steam turbines is greater than steam engines.
	B.	A flywheel is a must for steam turbine.
	C.	The turbine blades do not change the direction of steam issuing from the nozzle
	D.	The pressure of steam, in reaction turbines, is increased in fixed blades as well as in moving blades

7.	If the critical pressure ratio for steam is 0.546, then the steam is initially

	A.	wet steam
	B.	dry saturated steam
	C.	superheated steam
	D.	none of these

8.	The maximum efficiency of a De-Laval turbine is (where ? = Nozzle angle)

	A.	sin2 ?
	B.	cos2 ?
	C.	tan2 ?
	D.	cot2 ?

9.	The pressure compounded impulse turbine as compared to velocity compounded turbine require ______ number of stages.

	A.	same
	B.	less
	C.	more
	D.	none of above

10.	In a reaction turbine when the degree of reaction is zero, then there is

	A.	no heat drop in moving blades
	B.	no heat drop in fixed blades
	C.	maximum heat drop in moving blades
	D.	maximum heat drop in fixed blades

Read More :

» Steam Nozzles and Turbines - Data Intensity 1

» Steam Nozzles and Turbines - Data Intensity 2

» Steam Nozzles and Turbines - Data Intensity 3

» Steam Nozzles and Turbines - Data Intensity 4

Date to Date Current Affairs 2022

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