Q.1.
Fire tube boilers are
Q.2.
An economiser __________ the steam raising capacity of a boiler.
Q.3.
A device used to increase the temperature of saturated steam without raising its pressure, is called
Q.4.
The diameter of flue tube in a Cornish boiler is __________ that of the shell.
Q.5.
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.
Q.6.
The temperature of condensate is __________ on leaving the condenser than that of circulating water at inlet.
Q.7.
Willian's line for the steam engine is a straight line relationship between the steam consumption per hour and
Q.8.
The natural draught is produced by
Q.9.
When the speed of the crankshaft is betweenr.p.m. andr.p.m., the engine said to be a
Q.10.
Which of the following statement is correct for a compound steam engine ?
Q.11.
The function of a connecting rod is not to convert reciprocating motion of the piston into rotary motion.
Q.12.
La-mont boiler, is a high pressure water tube steam boiler working on forced circulation.
Q.13.
Loeffler boiler is a water tube boiler using a forced circulation of water.
Q.14.
In water tube boilers
Q.15.
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
Q.16.
A grate, in a boiler, is a place in the combustion chamber upon which fuel (wood or coal) is burnt.
Q.17.
The reheat factor is the ratio of the
Q.18.
Duplex feed pumps are used in small steam boilers. These operate on the principle of
Q.19.
In a boiler, the heat is lost
Q.20.
The friction present between the steam and the nozzle surfaces reduces the heat drop by