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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

DIN
BS
IBR
ASTM

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Steam Boilers, Engines, Nozzles and Turbines
The coal requirement per kW hour generation in the thermal power plant is of the order of

0.2 to 0.4 kg
1.0 to 1.5 kg
0.6 to 0.8 kg
0.1 to 0.2 kg

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Steam Boilers, Engines, Nozzles and Turbines
The pressure at which latent heat of vaporisation of water is zero, is

Below atmospheric pressure
100 kg/cm²
1 kg/cm²
225.6 kg/cm²

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Steam Boilers, Engines, Nozzles and Turbines
Caking coals are those which

Show little or no fusing action
Form lumps or masses of coke
Burn completely
Burn freely

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Steam Boilers, Engines, Nozzles and Turbines
Efficiency of a thermal cycle increases by

Reheating of steam
Cooling of steam
Regeneration
Both (A) and (B)

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Steam Boilers, Engines, Nozzles and Turbines
The numbers of fire tubes in a Cochran boiler are

165
225
75
115

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