Related Questions

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
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
Nurse Kemp has worked more night shifts in a row than Nurse Rogers, who has worked five. Nurse Miller has worked fifteen night shifts in a row, more than Nurses Kemp and Rogers combined. Nurse Calvin has worked eight night shifts in a row, less than Nurse Kemp. How many night shifts in a row has Nurse Kemp worked?
A eight
B nine
C ten
D eleven
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 pressure compounded impulse turbine as compared to velocity compounded turbine require __________ number of stages.
A Same
B Less
C More
D None of these
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
The blades of a centrifugal impeller are said to be curved forward, if the __________ of the motion of impeller blades.
A Inlet tip of a blade curves in a direction opposite to that
B Outlet tip of a blade curves in a direction opposite to that
C Inlet tip of a blade is towards the direction
D Outlet tip of a blade is towards the direction
The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be
A 0.4
B 0.56
C 0.67
D 1.67
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

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