| 1. | The ratio of the net work obtained from the gas turbine plant ? | |
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compression ratio
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work ratio
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pressure ratio
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none of these
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Report Question| 2. | Intercooling in gas turbines ? | |
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decreases net output but increases thermal efficiency
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increases net output but decreases thermal efficiency
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decreases net output and thermal efficiency both
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increases net output and thermal efficiency both
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| 3. | The type of rotary compressor used in gas turbines, is of ? | |
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centrifugal type
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axial flow type
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radial flow type
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none of these
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| 4. | Gas turbine as compared to steam turbine ? | |
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requires less space for installation
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has compressor and combustion chamber
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has less efficiency
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all of these
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| 5. | Euler's equation can be used for ? | |
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radial flow compressors
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axial flow compressors
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pumps
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all of these
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| 6. | A closed cycle gas turbine consists of a ? | |
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compressor
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heating chamber
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cooling chamber
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all of these
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| 7. | Which of the following bladings will give maximum pressure rise in a centrifugal compressor, assuming the same overall dimensions, blade inlet angle and rotational speeds ? | |
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Forward curved blades
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Backward curved blades
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Radial blades
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all of these
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| 8. | Rotary compressors are used for delivering ? | |
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small quantities of air at high pressures
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large quantities of air at high pressures
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small quantities of air at low pressures
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large quantities of air at low pressures
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| 9. | High air-fuel ratio in gas turbines ? | |
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increases power output
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improves thermal efficiency
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reduces exhaust temperature
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do not damage turbine blades
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| 10. | Only rocket engines can be propelled to space because ? | |
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they can generate very high thrust
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they have high propulsion efficiency
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these engines can work on several fuels
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they are not air-breathing engines
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