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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are

None of these
Internally as well as externally fired
Externally fired
Internally fired

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

DIN
BS
ASTM
IBR

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Steam Boilers, Engines, Nozzles and Turbines
In a uniflow engine

Steam enters at the centre and exhausts at the other end
Steam enters and exhausts through the same port
Steam enters at one end and exhausts at the centre
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler has __________ internal flue tubes.

One
Two
Three
Four

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Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

Decreases
Remain same
None of these
Increases

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Steam Boilers, Engines, Nozzles and Turbines
The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K)

176.5H/T1
T1 /88.25H
88.25H/T1
T1 /176.5H

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