| 1. | When coal is first dried and then crushed to a fine powder by pulverising machine, the resulting fuel is called ? | |
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wood charcoal
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bituminous coal
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briquetted coal
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none of these
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Report Question| 2. | The natural petroleum may be separated into ? | |
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petrol
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kerosene
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fuel oil
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lubricating oil
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| 3. | The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called ? | |
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specific heat at constant volume
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specific heat at constant pressure
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kilo-Joule
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none of these
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| 4. | The fuel mostly used in steam boilers is ? | |
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brown coal
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peat
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coking bituminous coal
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non-coking bituminous coal
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| 5. | The efficiency of Joule cycle is ? | |
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greater than Carnot cycle
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less than Carnot cycle
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equal to Carnot cycle
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none of these
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| 6. | The gas turbine cycle with regenerator improves ? | |
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thermal efficiency
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work ratio
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avoids pollution
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do not damage turbine blades
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| 7. | According to Avogadro's law ? | |
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the product of the gas constant and the molecular mass of an ideal gas is constant
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the sum of partial pressure of the mixture of two gases is sum of the two
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equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules
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all of the above
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| 8. | During which of the following process does heat rejection takes place in Carnot cycle ? | |
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Isothermal expansion
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Isentropic expansion
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Isothermal compression
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Isentropic compression
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| 9. | The ......... states that change of internal energy of a perfect gas is directly proportional to the change of temperature ? | |
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Boyle's law
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Charle's law
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Gay-Lussac law
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Joule's law
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| 10. | Stirling and Ericsson cycles are ? | |
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reversible cycles
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irreversible cycles
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semi-reversible cycles
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quasi-static cycles
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