Steam Boilers and Engines Questions

• Which of the following is not a boiler mounting?
• The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called
• The selection of type and size of a steam boiler depends upon
• The mechanical draught __________ with the amount of smoke.
• The artificial draught is produced by
• The ratio of the volume at cut-off to the swept volume is called
• When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by
• Which of the following is required for a steam condensing plant?
• Blow off cock in a boiler is used to
• Lancashire boiler is a stationary fire tube boiler.
• Babcock and Wilcox boiler is a stationary type of water tube boiler.
• The cylindrical shell of a Lancashire boiler has diameter from
• The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as
• Willian's law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power)
• Which of the following boiler works on a forced circulation of water?
• In a single acting steam engine
• The diameter of internal flue tubes of a Lancashire boiler is about __________ that of its shell.
• A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called
• A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly
• The capacity and working pressure.of a Cornish boiler is __________ as compared to Lancashire boiler.