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You Are On Multi Choice Question Bank SET 1477

73851. The Locomotive boiler has

73852. The shell of the Cochran boiler is made hemispherical

73853. A __________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit.

73854. Willian's law holds good for throttle-governed engine, but not for cut-off governed engine.

73855. Which of the following is required for a steam condensing plant ?

73856. The missing quantity is mainly due to cylinder condensation and a small amount of steam leakage past the valves and piston.

73857. There is always some steam left in the clearance space from the previous stroke. This steam left in the clearance space is called

73858. The ratio of the volume at cut-off to the swept volume is called

73859. The function of a D-slide valve is to exhaust steam from the cylinder at proper moment.

73860. The mechanical draught produces more draught than natural draught.

73861. The water tube boilers produce steam at a __________ pressure than that of fire tube boilers.

73862. The mechanical draught __________ with the amount of smoke.

73863. When the expansion of steam is carried out in a single cylinder and then exhausted into the atmosphere or a condenser, the engine is said to be a simple steam engine.

73864. The high pressure and low pressure cylinders in a Woolf type compound engine are regarded as having cranks

73865. In a single acting steam engine

73866. The cylindrical shell of a Lancashire boiler has diameter from

73867. Which of the following boiler works on a forced circulation of water?

73868. The clearance in the engine cylinder has no effect on the steam consumption.

73869. The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as

73870. Which of the following statement indicates the difference between Cornish boiler and Lancashire boiler ?

73871. By compounding the expansion of steam in two or more cylinders, the ratio of expansion

73872. The water tubes in a simple vertical boiler are

73873. The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as

73874. In a La-mont boiler, there is a __________ circulation of water and steam.

73875. The diameter of internal flue tubes of a Lancashire boiler is about __________ that of its shell.

73876. Locomotive boiler produces steam at a very high rate.

73877. Which of the following is a fire tube boiler ?

73878. I want a completely ......... colour.?

73879. Which of the following are boiler accessories ?

73880. All steam engines work on

73881. The capacity and working pressure.of a Cornish boiler is __________ as compared to Lancashire boiler.

73882. For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is __________ the piston speed of single acting steam engine.

73883. 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

73884. When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as

73885. The ratio of heat equivalent to brake power to the energy supplied in steam is known as

73886. When the speed of the engine is controlled by means of a valve in a steam pipe, which regulates the pressure of steam entering the engine, then the governing is known as

73887. The length of Lancashire boiler varies from

73888. The ratio of brake power to the indicated power is known as

73889. The draught may be produced by a

73890. The rate of flow of steam is __________ in case of fire tube boilers.

73891. The number of water level indicators in a boiler are generally __________ in number.

73892. The fire tubes in a Locomotive boiler has __________ diameter.

73893. 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

73894. Fire tube boilers are limited to a maximum working pressure of

73895. The average value of diagram factor lies between

73896. The fittings mounted on the boiler for its proper and safe functioning is a

73897. The diameter of superheated tubes in a locomotive boiler is

73898. The amount of water evaporated from feed water at __________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C.

73899. Willian's law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power)

73900. A condenser where circulating water flows through tubes which are surrounded by steam, in known as

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