| 1. | Determine the quality factor of a series RLC circuit, when the value of capacitance is 0.02 mF, the value of inductance is 8 mH and the value of resistance is 40 ohms. ? | |
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0.5
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0.4
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0.8
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1.3
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Report Question| 2. | What will be the time (in seconds) taken by the inductor reach its maximum steady state value in a series RL circuit, when the value of the inductance is 0.8 H and the value of the resistance is 10 Ohms ? | |
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0.2
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0.6
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0.4
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0.8
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| 3. | Which one of the following is the dimension of energy ? | |
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ML²/T³
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ML²/T²
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T²/ML²
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ML²/QT²
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| 4. | Which one of the following statement is NOT TRUE about the MI type instruments ? | |
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MI type Instruments are suitable for both AC and DC circuits.
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Frictional error in MI type instruments is very less.
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The torque weight ratio of MI type instruments is high.
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The instrument cost is much higher as compared to PMMC type instruments.
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| 5. | Which one of the following statement is NOT TRUE about multimeter ? | |
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Multimeter can be used for the measurement of voltage.
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Multimeter can be used for the measurement of power.
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Multimeter can be used for the measurement of resistance.
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Multimeter can be used for the measurement of current.
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| 6. | Which one of the following is the main cause of magnetic decay in PMMC type instrument ? | |
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Variation in the resistance of the moving coil
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Quality of spring
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Aging of the spring
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Aging of the magnets
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| 7. | Determine the apparent power (in W) of a circuit, if the circuit have a power factor of 0.8 and the reactive power of the circuit is 60 W ? | |
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80
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75
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60
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55
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| 8. | A building has 3 floors and each floor has 4 fans of 50 W that operates for 12 hours a day and one air conditioner of 3000 W that operates for 2 hours per day in the month of the June. Determine the energy consumption (in kWh) of the building in June ? | |
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512
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252
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756
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504
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| 9. | Determine the reading (in kW) of both the watt-meter used to measure the power of a three-phase three-wire system having input of 6 kW and power factor of 1 ? | |
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4, 2
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5, 1
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3, 3
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6, 0
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| 10. | Determine the full-scale reading (in V) of a PMMC type voltmeter, when the internal resistance of the voltmeter is 230 kilo-ohms, the series resistance connected with the voltmeter is 70 kilo-ohms and the sensitivity of the voltmeter is 3 kilo-ohms/volt ? | |
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200
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150
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100
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250
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