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Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
Compressors, Gas Dynamics and Gas Turbines - Data Intensity 1 Multiple Questions and Answers.
| 1. | In a four stage compressor, if the pressure at the first and third stage are 1 bar and 16 bar, then the delivery pressure at the fourth stage will be | ||
| A. | 1 bar | ||
| B. | 16 bar | ||
| C. | 64 bar | ||
| D. | 256 bar | ||
| 2. | The compressed air may be used | ||
| A. | in gas turbine plants | ||
| B. | for operating pneumatic drills | ||
| C. | in starting and supercharging of I.C. engines | ||
| D. | all of the above | ||
| 3. | A rocket works with maximum overall efficiency when air-craft velocity is __________ the jet velocity. | ||
| A. | equal to | ||
| B. | one-half | ||
| C. | double | ||
| D. | all of above | ||
| 4. | The volumetric efficiency for reciprocating air compressors is about | ||
| A. | 10 to 40% | ||
| B. | 40 to 60% | ||
| C. | 60 to 70% | ||
| D. | 70 to 90% | ||
| 5. | The maximum temperature in a gas turbine is | ||
| A. | 200�C | ||
| B. | 500�C | ||
| C. | 700�C | ||
| D. | 1000�C | ||
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