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Mechanical Engineering · all questions

Steam Boilers, Engines, Nozzles And Turbines
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The draught in locomotive boilers is produced by a

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The function of a cross-head is to guide motion of the _________ and to prevent it from bending.

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1 kg.m is equal to

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The working pressure range for a LaMont boiler is

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By compounding the expansion of steam in two or more cylinders, the length of stroke

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A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called

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The function of a flywheel is

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Ultimate analysis of fuel is determination of percentage of

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Proximate analysis of fuel is determination of percentage of

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A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be

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In a 50% reaction turbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s and the blade velocity is 454 m/s. The power output in kW of steam will be

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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

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

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The temperature of flue gases at air heater outlet should be

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The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades.

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In a reaction turbine

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The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be

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The critical pressure ratio for initially superheated steam is __________ as compared to initially dry saturated steam.

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In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is

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Expanding steam to a very low pressure (high vacuum) in steam engines is

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