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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be

160/3 m/s
640/3 m/s
320/3 m/s
640 m/s

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

IBR
ASTM
BS
DIN

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Steam Boilers, Engines, Nozzles and Turbines
An economiser is installed in a boiler primarily to

Increase steam pressure
Superheat the steam
All of the listed here
Reduce fuel consumption

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Steam Boilers, Engines, Nozzles and Turbines
The maximum steam pressure in a Locomotive boiler is limited to

180 MN/m²
18 MN/m²
0.18 MN/m²
1.8 MN/m²

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Steam Boilers, Engines, Nozzles and Turbines
In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts. and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is

0.4
0.5
0.25
0.8

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is not a boiler mounting?

Blow off cock
Economiser
Feed check valve
Fusible plug

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