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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The economiser is used in boilers to

Economize on fuel
Increase thermal efficiency of boiler
Increase flue gas temperature
Extract heat from the exhaust flue gases

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Steam Boilers, Engines, Nozzles and Turbines
On Millier chart, the constant pressure lines

Diverge from right to left
First rise up and then fall
Diverge from left to right
Are equally spaced throughout

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is a

Mobile fire tube boiler
Stationary fire tube boiler
Stationary water tube boiler
Water tube boiler with natural/forced circulation

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Steam Boilers, Engines, Nozzles and Turbines
The process of maintaining the speed of the turbine constant for various load conditions, is known as

Reheating
None of these
Bleeding
Governing

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Steam Boilers, Engines, Nozzles and Turbines
Which is not correct statement about pulverized fuel firing?

High burning rate is possible
It is the best technique for burning high ash content fuel having low fusion ash
Heat release can be easily controlled
Fuel burns economically

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Steam Boilers, Engines, Nozzles and Turbines
Expanding steam to a very low pressure (high vacuum) in steam engines is

Essential
Economical
Uneconomical
Desirable

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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