| 1. | The rate of steam produced in Benson boiler is ? | |
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100 tonnes/h
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135 tonnes/h
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175 tonnes/h
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250 tonnes/h
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Report Question| 2. | The equivalent evaporation is defined as ? | |
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the ratio of heat actually used in producing the steam to the heat liberated in the furnace
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the amount of water evaporated or steam produced in kg per kg of fuel burnt
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the amount of water evaporated from and at 100° C into dry and saturated steam
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the evaporation of 15.653 kg of water per hour from and at 100° C
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| 3. | The high steam and low water safety valve is used to blow off steam when the ? | |
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steam pressure exceeds the working pressure
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water level in the boiler becomes too low
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both (a) and (b)
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none of the above
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| 4. | The diameter of flue tube in a Cornish boiler is ................ that of the shell ? | |
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one-fourth
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one-third
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two-fifth
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three-fifth
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| 5. | The missing quantity per stroke is equal to ? | |
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cylinder feed-indicated mass of steam
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cylinder feed + indicated mass of steam
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mass of cushion steam+ indicated mass of steam
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mass of cushion steam + cylinder feed
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| 6. | In a uniflow engine ? | |
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steam enters and exhausts through the same port
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steam enters at one end and exhausts at the centre
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steam enters at the centre and exhausts at the other end
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none of the above
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| 7. | The fittings mounted on the boiler for its proper and safe functioning is a ? | |
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water level indication
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pressure gauge
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safety valve
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all of these
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| 8. | Which of the following statement is wrong ? | |
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The mechanical draught reduces the height of chimney
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The natural draught reduces the fuel consumption
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A balanced draught is a combination of induced and forced draught
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all of the above
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| 9. | 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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blow off cock
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stop valve
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superheater
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none of these
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| 10. | The function of an eccentric rod is ? | |
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to provide reciprocating motion to the slide valve
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to convert reciprocating motion of the piston into rotary motion of the crank
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to convert rotary motion of the crankshaft into to and fro motion of the valve rod
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to provide simple harmonic motion to the D-slide valve
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