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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A boiler in India should conform to safety regulations of

ASTM
DIN
IBR
BS

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Steam Boilers, Engines, Nozzles and Turbines
Evaporative capacity of boiler is expressed as

kg of fuel fired
kg of steam produced per kg of fuel fifed
kg of steam produced
Steam pressure produced

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio for initially wet steam is

0.546
0.582
0.601
0.577

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Steam Boilers, Engines, Nozzles and Turbines
Locomotive type' boiler is

Horizontal multi-tubular fire tube type
Vertical tubular fire tube type
Water wall enclosed furnace type
Horizontal multi-tubular water tube boiler

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Steam Boilers, Engines, Nozzles and Turbines
The effect of friction in the nozzle ___ dryness fraction of steam.

Increases
Decreases
None of the listed here
Has no effect on

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Steam Boilers, Engines, Nozzles and Turbines
Maximum energy loss in a boiler occurs due to

Flue gases
Unburnt carbon in ash
Ash content
Incomplete combustion

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