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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A safety valve mainly used with locomotive and marine boilers is

Dead weight safety valve
Lever safety valve
High steam and low water safety valve
Spring loaded safety valve

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Steam Boilers, Engines, Nozzles and Turbines
The aim of a compound steam engine is

All of these
To reduce the ratio of expansion in each cylinder
To reduce the length of stroke
To reduce the temperature range in each cylinder

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Steam Boilers, Engines, Nozzles and Turbines
The efficiency of the plant __________ with the mechanical draught.

Decreases
Remains constant
Increases
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The capacity of induced draft fan compared to forced draft fan in a boiler is

More
Same
Less or more depending on size of boiler
Less

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of heat equivalent to brake power to the energy supplied in steam is known as

Brake thermal efficiency
Indicated thermal efficiency
Mechanical efficiency
Overall efficiency

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Steam Boilers, Engines, Nozzles and Turbines
The effect of bleeding is that

It increases the thermodynamic efficiency of the turbine
Boiler is supplied with hot water
All of these
It decreases the power developed by the turbine

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