The function of a valve rod is
Water tube boilers are
Willian's law holds good for throttle-governed engine, but not for cut-off governed engine.
The fire tubes in a Cochran boiler are
The object of producing draught in a boiler is
The natural draught is produced by
A device used to increase the temperature of saturated steam without raising its pressure, is called
Which of the following is required for a steam condensing plant ?
The draught produced by a steam jet issuing from a nozzle placed in the ashpit under the fire grate of the furnace is called
A double acting steam engine with a cylinder diameter ofmm and a stroke ofmm has a cut-off of 0.The expansion ratio for this engine is nearly
In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to
Willian's line for the steam engine is a straight line relationship between the steam consumption per hour and
The diameter of flue tube in a Cornish boiler is __________ that of the shell.
The missing quantity is mainly due to cylinder condensation and a small amount of steam leakage past the valves and piston.
Which of the following statement is wrong ?
The aim of a compound steam engine is
In water tube boilers
The temperature of condensate is __________ on leaving the condenser than that of circulating water at inlet.
An economiser __________ the steam raising capacity of a boiler.
There is always some steam left in the clearance space from the previous stroke. This steam left in the clearance space is called
The function of a crosshead is to guide motion of the __________ and to prevent it from bending.
The average operating pressure of Benson boiler is
A draught produced by a chimney due to the difference of densities between the hot gases inside the chimney and cold atmospheric air outside it, is called natural draught.
Fire tube boilers are
The ratio of the volume at cut-off to the swept volume is called
The cylinder dimensions of a compound engine may be designed on the basis of
The diameter of Cornish boiler varies from
A grate, in a boiler, is a place in the combustion chamber upon which fuel (wood or coal) is burnt.
Which of the following statement is correct ?
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