1 . How are the efficiencies of any heat engine (miu) and reversible heat engine (miuR) compared, when both are operating between same heat source and same heat sink?
- A. miu = miuR
- B. miu>miuR
- C. miu
- D. none of these
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Assistant Director (Engineering -Mechanical) | 11.01.2019
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2 . Instrument used for measuring very highly temperature is -
- A. Pyrometer
- B. Pyroscope
- C. Seismogrph
- D. Xyrometer
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জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯
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3 . The nature of electricity being produced using sun rays is:
- A. AC
- B. DC
- C. Both AC and DC
- D. None
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পল্লী বিদ্যুতায়ন বোর্ড। এসিস্ট্যান্ট এনফোর্সমেন্ট কোঅডিনেটর। 31-12-2021
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