| 1. | The process of enlarging a hole is known as ? | |
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counter boarding
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counter sinking
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boring
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drilling
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Report Question| 2. | Which of the following statements is true ? | |
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Crater wear is predominant in ceramic tools
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Crater wear is predominant in carbon tool steel
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Crater wear is predominant in tungsten carbide tools
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Crater wear is predominant in high speed steel tools
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| 3. | The bomb calorimeter is an apparatus to measure the ? | |
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calorific value of a gaseous fuel
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calorific value of solid and gaseous fuels
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calorimetric composition of any solid bomb material
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calorific value of a solid or liquid fuel
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| 4. | In metric system the unit of heat is given as ? | |
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CHU
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BTU
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kcal
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Kelvin
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| 5. | Centrifugal pump is an example of ? | |
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isolated system
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closed system
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steady flow system
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None of these
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| 6. | A refrigeration system works on ? | |
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second law of thermodynamics
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first law of thermodynamics
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zeroth law of thermodynamics
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None of these
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| 7. | Liquids have ? | |
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No specific heat
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different values of specific heat at same temperature
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only one value of specific heat
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two distinct values of specific heat
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| 8. | The volume of the universal gas constant (Ru) is equal to ? | |
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848 m kgf.kg-mol / K
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8.48 m kgf/kg-mol / K
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84.8 m kgf/kg-mol / K
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0.848 m kgf/kg-mol / K
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| 9. | The solid fuel having the highest calorific value is ? | |
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wood
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lignite
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coke
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anthracite
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| 10. | he heat transfer Q, the work done W and the change in internal energy U are all zero in the case of ? | |
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a rigid vessel containing steam at 150°C left in the atmosphere which is at 25°C
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1 kg of gas contained in an insulated cylinder expanding as the piston moves slowly outwards.
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a rigid vessel containing ammonia gas connected through a valve to an evacuated rigid vessel, the vessel, the valve and the connecting pipes being well insulated and the valve being opened and after a time, condition through the two vessels becoming uniform
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1 kg of air flowing adiabatically from the atmosphere into a previously evacuated bottle
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