Related Questions

In a reaction turbine, when steam flows through the moving blades,
A Pressure increases while velocity decreases
B Pressure decreases while velocity increases
C Pressure and velocity both decreases
D Pressure and velocity both increases
In a reaction turbine, when steam flows through the fixed blades,
A Pressure increases while velocity decreases
B Pressure decreases while velocity increases
C Pressure and velocity both decreases
D Pressure and velocity both increases
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as
A Back pressure turbine
B Pass out turbine
C Low pressure turbine
D Impulse turbine
In a velocity compounded impulse turbine, when steam flows through the second row of moving blades,
A Velocity increases
B Velocity decreases
C Velocity remains constant
D Pressure remains constant
An impulse turbine as compared to a reaction turbine, for a given power has _________ row of blades.
A Equal
B Less
C More
D None of these
The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades.
A 10 to 15%
B 15 to 20%
C 20 to 30%
D 30 to 40%
The blade friction in the impulse turbine reduces the velocity of steam by _____ while it passes over the blades.
A 10-15%
B 15-20%
C 20-30%
D 30-40%
The process of draining steam from the turbine, at certain points during its expansion and using this steam for heating the feed water in feed water heaters and then supplying it to the boiler is known as
A Regenerative heating
B Reheating of steam
C Bleeding
D None of these
The ratio of the work-done on the blades per kg of steam to the total energy supplied per stage per kg of steam is called
A Blading efficiency
B Nozzle efficiency
C Stage efficiency
D Mechanical efficiency
The ratio of the workdone on the blades to the energy supplied to the blades, is called
A Blading efficiency
B Nozzle efficiency
C Gross or stage efficiency
D Mechanical efficiency

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