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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The basic purpose of drum in boiler is to

Serve as storage of steam
Remove salts from water
Serve as storage of feed water for water wall
Separate steam from water

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

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

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Steam Boilers, Engines, Nozzles and Turbines
In a 50% reaction turbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s and the blade velocity is 454 m/s. The power output in kW of steam will be

296 kW
302 kW
260 kW
282 kW

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

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

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

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

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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

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

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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