Related Questions

The diameters of fire tubes and superheater tubes in locomotive boiler are
A 47.5 mm, 130 mm
B 32.5 mm, 180 mm
C 65.5 mm, 210 mm
D 24.5 mm, 65 mm
The fire tubes in a Locomotive boiler has __________ diameter.
A 4.75 mm
B 5.47 mm
C 7.45 mm
D 47.5 mm
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes
A Are easier to clean
B Are less prone to fouling
C Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less
D None of these
Locomotive boiler tubes are made of __________ alloys.
A Arsenic copper
B Magnesium
C Aluminium
D Nickel
In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at
A 45° to each other
B 90° to each other
C 120° to each other
D 180° to each other
The shell diameter and length of locomotive boiler are
A 1.5 m, 4 m
B 1.5 m, 6 m
C 1 m, 4 m
D 2 m, 4 m
The shell diameter of a Locomotive boiler is
A 1 m
B 1.5 m
C 2 m
D 2.5 m
A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit.
A Blow off cock
B Fusible plug
C Stop valve
D Safety valve
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
In order to obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace vacuum will
A Remain unaffected
B Improve
C Worsen
D May improve/worsen depending on size

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