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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Fire tube boilers are limited to a maximum design working pressure of

17 kg/cm²
6 kg/cm
100 kg/cm²
1 kg/cm

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Steam Boilers, Engines, Nozzles and Turbines
The change in internal energy in steam engines equals to

Work done during compression
Change in enthalpy
Work done during the Rankine cycle
Work done during adiabatic expansion

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Steam Boilers, Engines, Nozzles and Turbines
The safety valve at superheater as compared to drum safety valve setting is set at

Lower value
Any value
Higher value
Same value

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Steam Boilers, Engines, Nozzles and Turbines
The flow through a nozzle is regarded as

Isentropic flow
Constant volume flow
Isothermal flow
Constant pressure flow

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Steam Boilers, Engines, Nozzles and Turbines
A compound steam engine in which the high pressure and low pressure cylinders have common piston rod, is called

None of these
Tandem type compound engine
Receiver type compound engine
Woolf type compound engine

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor)

pa = pm/K
pa = pm × K
pa = K/pm
pa = pm + K

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