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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The safety valve on boiler drum compared to safety valve on superheater is set at

Same value
Lower/higher depending on steam flow
Lower value
Higher value

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler has __________ internal flue tubes.

Four
One
Two
Three

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?

All of these
The steam consumption is less
The efficiency of steam turbine is higher
A steam turbine develops higher speeds

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as

Efficiency of the boiler
Efficiency of the fan
Efficiency of the chimney
Power of the boiler

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of Cornish boiler is of the order of

2.53.5 m
23 m
1.52.5 m
12 m

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following compound steam engine requires a smaller flywheel?

All of these
Receiver type
Tandem type
Woolf type

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