Related Questions

The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which
A Delivers unit discharge under unit head
B Delivers unit discharge under unit speed
C Develops unit power under unit head
D Develops unit power under unit speed
which of the following components of reaction turbine increases the head on the turbine by an amount equal to the height of runner outlet above the tail race ?
A Scroll casing
B Guide vanes
C Draft tube
D Moving vanes
Which energy generated in a turbine is used to run electric power generator linked to the turbine shaft?
A mechanic energy
B kinetic energy
C potential energy
D elastic energy
Which type of turbine is a Francis Turbine?
A Impulse Turbine
B Screw Turbine
C Reaction turbine
D Turgo turbine
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is
A Low
B High
C Same
D Low/high depending on make and type
There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would
A Remain same
B Decrease
C Increase
D None of the above
The weight per horse power ratio for gas in Turbine as compared to I.C. engine and steam turbine is
A Same
B Higher
C Lower
D None of these
Gas turbine as compared to steam turbine
A Requires less space for installation
B Has compressor and combustion chamber
C Has less efficiency
D All of these
The ratio of the net work obtained from the gas turbine plant to the turbine work is known as
A Compression ratio
B Work ratio
C Pressure ratio
D None of these
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 these

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