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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The performance of a boiler is measured by the

Steam produced in kg/kg of fuel burnt
Amount of water evaporated per hour
All of the listed here
Steam produced in kg/h

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Steam Boilers, Engines, Nozzles and Turbines
The discharge is __________ at critical pressure.

None of these
Minimum
Zero
Maximum

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Steam Boilers, Engines, Nozzles and Turbines
A safety valve usually employed with stationary boilers is

All of the listed here
Lever safety valve
High steam and low water safety valve
Dead weight safety valve

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Steam Boilers, Engines, Nozzles and Turbines
In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is _________ the relative velocity of steam at inlet tip of the blade.

Less than
Greater than
Equal to
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The function of a cross-head is to guide motion of the _________ and to prevent it from bending.

Valve rod
Eccentric rod
Connecting rod
Piston rod

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

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

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