Steam Nozzles and Turbines - Data Intensity 2 | Multiple Questions and Answers

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Steam Nozzles and Turbines - Data Intensity 2 Multiple Questions and Answers.

11.	The efficiency of a pressure-velocity compounded impulse turbine is _____ as compared to pressure compounded impulse turbine.

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

12.	The effect of supersaturation is that the

	A.	mass of the steam discharged increases
	B.	entropy and specific volume of the steam increases
	C.	exit velocity of steam reduces
	D.	all of these

13.	The effect of friction on the flow of steam through a nozzle is to

	A.	decrease the mass flow rate and to increase the wetness of steam
	B.	increase the mass flow rate and to increase the exit temperature
	C.	decrease the mass flow rate and to decrease the wetness of steam
	D.	increase the exit temperature without any effect on mass flow rate

14.	The ratio of the isentropic heat drop to the heat supplied, is called

	A.	reheat factor
	B.	stage efficiency
	C.	internal efficiency
	D.	Rankine efficiency

15.	The purpose of governing in steam turbines is to

	A.	maintain the speed of the turbine
	B.	reduce the effective heat drop
	C.	reheat the steam and improve its quality
	D.	completely balance against end thrust

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

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