Related Questions

Wave trap is used to trap waves of
A power frequencies
B higher frequencies entering generator or transformer units
C either of the above
D none of the above
Trap is used to remove __________ from steam pipe lines.
A Steam
B Condensate
C Non-condensables
D None of these
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
An underdesigned steam trap will
A Waste steam
B Destroy itself of acceleration wear due to rapid recycling
C Back up condensate and cause water hammer in steam line
D None of these
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
An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii)
A Less number of trays are required
B Composition of the residue remains unchanged
C More number of trays are required but the residue composition remains unchanged
D More number of trays are required and the residue composition is more dilute in methanol
'Pheromoe Trap' is used in
A fishing industry to catch fish with special way
B Production system to identify the lazy workers
C agriculture industry to attract insects
D All are true
In the sentence-“I was never in the robbers’ cave, where Gil Blas lived, but I often go back there z and find the trap-door just as heavy to raise as it used to be”, ‘there’ refers to-
A Gil Blas
B Trap-door
C . Robbers’ cave
D The author
The high steam and low water safety valve is used to blow off steam when the
A Steam pressure exceeds the working pressure
B Water level in the boiler becomes too low
C Both (A) and (B)
D None of the above

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