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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be

188 m/s
450 m/s
900 m/s
79 m/s

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Steam Boilers, Engines, Nozzles and Turbines
The saturation temperature of steam with increase in pressure increases

Slowly first and then rapidly
Linearly
Inversely
Rapidly first and then slowly

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Steam Boilers, Engines, Nozzles and Turbines
The rate of discharge through the nozzle ___ when the exit pressure is gradually reduced.

Remains same
Increases
Decreases
None of the listed here

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Steam Boilers, Engines, Nozzles and Turbines
The actual vacuum in a condenser is equal to

Gauge pressure + atmospheric pressure
Barometric pressure + actual pressure
Gauge pressure - atmospheric pressure
Barometric pressure - actual pressure

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Steam Boilers, Engines, Nozzles and Turbines
Steam exhaust from high pressure turbine is reheated in

Economizer
Boiler drums
Superheater tubes
A separate coil located in convection path

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Steam Boilers, Engines, Nozzles and Turbines
In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is

High
Very low
Very high
Low

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