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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Reheating of steam in a turbine

All of these
Increases the efficiency of the turbine
Reduces wear on the blades
Increases the work-done through the turbine

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Steam Boilers, Engines, Nozzles and Turbines
Alkaline pyrogallate is used in Orsat's apparatus for absorption of

O₂
CO
N₂
CO₂

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Steam Boilers, Engines, Nozzles and Turbines
A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly

340 kg/h
150 kg/h
280 kg/h
210 kg/h

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Steam Boilers, Engines, Nozzles and Turbines
A valve installed between the boiler and the feed pump is

Blow off cock
Steam stop valve
None of these
Feed check valve

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Steam Boilers, Engines, Nozzles and Turbines
The water tubes in a Babcock and Wilcox boiler are

Inclined
Vertical
Horizontal and inclined
Horizontal

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Steam Boilers, Engines, Nozzles and Turbines
The feed check valve is used in order to

Regulate flow of boiler water
Recirculate unwanted feed water
Allow high pressure feed water to flow to drum and not allow reverse flow to take place
Check level of water in boiler drum

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