"Mechanical MCQ Question"

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"ELECTRICAL QUESTION"

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Hi any questions mail me on jawedenc@gmail.com Sign up Loading... Electrical Question : ELECTRICAL QUESTION 1. A circuit breaker is (A) power factor correcting device (B) a device to neutralize the effect of transients (C) a waveform correcting device (D) a current interrupting device. Get Answer:   D 2. The function of protective relay in a circuit breaker is (A) to each any stray voltages (B) to close the contacts when the actuating quantity reaches a certain predetermined value (C) to limit arcing current during the operation of circuit breaker (D) to provide additional safety in the operation of circuit breaker. Get Answer:   B 3. Low voltage circuit breakers have rated voltage of less than (A) 220 V (B) 400V (C) 1000 V (D) 10,000 V. C 4. The fault clearing time of a circuit breaker is usually (A) few minutes (B) few seconds (C) one second (D) few cycles of supply voltage. D 5. The medium employed for extinction of arc in a...
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"Mechanical Question"

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Sign up Loading... Thermodynamics 1. Which of the following variables controls the physical properties of a perfect gas (a) pressure (b) temperature (c) volume (d) all of the above (e) atomic mass.  Ans: d 2. Which of the following laws is applicable for the behavior of a perfect gas (a) Boyle's law (b) Charles'law (c) Gay­Lussac law (d) all of the above (e) Joule's law.  Ans: d 3. The unit of temperature in S.I. units is (a) Centigrade (b) Celsius (c) Fahrenheit (d) Kelvin (e) Rankine. Ans: d 4. The unit of mass in S.I. units is (a) kilogram (b) gram (c) tonne (d) quintal (e) newton.  Ans: a 5. The unit of time in S.I. units is (a) second (b) minute (c) hour (d) day (e) year. Ans: a 6. The unit of length in S.I. units is (a) meter (b) centimeter (c) kilometer (d) millimeter. Ans: a 7. The unit of energy in S.I. units is (a) watt (b) joule (c) joule/s (d) joule/m (e)...
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