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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Benson boiler requires

No drum
Three drums
Two drums
One drum

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Steam Boilers, Engines, Nozzles and Turbines
The aim of a compound steam engine is

All of these
To reduce the ratio of expansion in each cylinder
To reduce the temperature range in each cylinder
To reduce the length of stroke

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Steam Boilers, Engines, Nozzles and Turbines
Which is not correct statement about pulverized fuel firing?

It is the best technique for burning high ash content fuel having low fusion ash
Heat release can be easily controlled
Fuel burns economically
High burning rate is possible

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Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

Stage efficiency
Diagram efficiency
Nozzle efficiency
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Fusible plug for boilers is made of fusible metal containing tin, lead, and

Nickel
Aluminium
Copper
Bismuth

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Steam Boilers, Engines, Nozzles and Turbines
The diameter of fire tubes in Cochran boiler is of the order of

2 cm
6 cm
12 cm
8 cm

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