Steam Boilers and Engines Questions

• A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off of 0.35. The expansion ratio for this engine is nearly
• The cylinder dimensions of a compound engine may be designed on the basis of
• In natural circulation steam boilers, the circulation of water is by convection currents which are set up during the heating of water.
• An air preheater is installed
• 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
• A device used to increase the temperature of saturated steam without raising its pressure, is called
• The draught produced by a steam jet issuing from a nozzle placed in the ashpit under the fire grate of the furnace is called
• When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as
• The diameter of Cornish boiler varies from
• The natural draught is produced by
• The fire tubes in a Cochran boiler are
• The function of a connecting rod is not to convert reciprocating motion of the piston into rotary motion.
• The function of a flywheel is
• The diameter of flue tube in a Cornish boiler is __________ that of the shell.
• Willian's line for the steam engine is a straight line relationship between the steam consumption per hour and
• The pressure of steam in the engine cylinder at the beginning of the stroke is __________ the boiler pressure.
• A safety valve mainly used with locomotive and marine boilers is
• The power of a boiler may be defined as
• In a uniflow engine
• Cut-off governing of steam engines is a method of controlling the engine output by varying