Related Questions

In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of
A 10 atmospheres
B 20 atmospheres
C 30 atmospheres
D 40 atmospheres
Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
A 1.5:1
B 3.5:1
C 10:1
D 15:1
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as
A Back pressure turbine
B Pass out turbine
C Low pressure turbine
D Impulse turbine
In case of supersonic flow of a fluid through pipeline, the 'Mach number' is
A 0
B 1
C > 1
The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is
A 0.555
B 0.578
C 0.5457
D 0.6
The ratio of exit pressure to inlet pressure for maximum mass flow rate per unit area of steam through a nozzle when steam is initially dry saturated is
A 0.6
B 0.578
C 0.555
D 0.5457
A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as
A Blow off cock
B Fusible plug
C Superheater
D Stop valve
The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
A Wetness
B Mass flow rate
C Both A & B
D Neither A nor B
The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop
A Remains the same
B Increases
C Decreases
D Is unpredictable
For supersonic transport aircraft, the minimum turning radius of taxiway is
A 60 m
B 120 m
C 180 m
D 240 m

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