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You Are On Multi Choice Question Bank SET 1476

73801. The missing quantity per stroke is equal to





73802. In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the condenser pressure.




73803. A compound steam engine requires a heavier flywheel than simple steam engines.



73804. A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached to two different cranks set at 180° to each other, is called





73805. The heat balance sheet for the boiler shows the





73806. The performance of a boiler is measured by the





73807. The evaporative capacity of a boiler is defined as the evaporation of 15.653 kg of water per hour from and at 100° C.



73808. The maximum heat loss is a boiler occurs due to





73809. Benson boiler requires





73810. The high pressure and low pressure cylinders in a Tandem type compound engine are regarded as having cranks





73811. The amount of water evaporated or steam produced in kg per kg of fuel burnt is known as power of a boiler.



73812. The fire tubes in a Cochran boiler usually have __________ diameter.





73813. Cut-off governing as compared to throttle governing is





73814. For the same diameter and thickness of tube, a water tube boiler has __________ heating surface as compared to fire tube boiler.




73815. Throttle governing of steam engines is a method of controlling the engine output by varying





73816. In a double acting steam engine, the steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft.



73817. Cornish boilers are multi-tubular boilers.



73818. Expansion ratio is the ratio of





73819. In cross compounding, the cylinders are arranged





73820. The motion of a D-slide valve in a steam engine is simple harmonic.



73821. A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as





73822. A single ended Scotch marine steam boiler may have one to four furnaces which enter from front end of the boiler.



73823. The high steam and low water safety valve is used to blow off steam when the





73824. In a Tandem type compound engine, the high pressure and low pressure cylinders





73825. Lancashire boiler is a stationary fire tube boiler.



73826. Lancashire boiler is used where working pressure and power required are





73827. The amount of water evaporated or steam produced in kg per kg of fuel burnt is termed as evaporative capacity of a boiler.



73828. In a compound steam engine, the temperature range per cylinder is reduced, with corresponding reduction in the condensation.



73829. The cylinder condensation or missing quantity may be reduced by





73830. The actual vacuum in a condenser is equal to





73831. The function of a superheater is to heat the feed water by utilising the heat in the exhaust flue gases before leaving through the chimney.



73832. Willian's line follows the law (where b = A constant representing the shape of the Willian's line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)





73833. 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


73834. The selection of type and size of a steam boiler depends upon





73835. The maximum steam pressure in a Locomotive boiler is limited to





73836. The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks





73837. The main object of a boiler trial is





73838. The artificial draught is produced by





73839. The draught is the __________ of pressures above and below the fire grate.



73840. The function of an eccentric is to provide __________ motion to the slide valve.



73841. The water tubes in a Babcock and Wilcox boiler are




73842. In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the atmospheric pressure.




73843. Blow off cock in a boiler is used to





73844. The cut-off ratio is the reciprocal of expansion ratio,



73845. In a receiver type compound engine, the high pressure and low pressure cylinders





73846. The damper in a steam boiler is provided to control the draught (i.e. rate of flow of air) and thus regulate the rate of generation of steam.



73847. The clearance in the engine cylinder





73848. Which of the following is not a boiler mounting?





73849. The ratio of the clearance volume to the swept volume is called





73850. 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





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