| 1. | Which one of the following represents the time constant of a series R-C circuit ? | |
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RC²
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R²C
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RC
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R/C
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Report Question| 2. | What will the peak value of alternating voltage (in V) when the average value of the voltage is 140 V ? | |
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216
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214
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220
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240
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| 3. | Determine the capacitive reactance (in Ohms) of a circuit, if the supplied frequency is 50 Hz and the capacitance of the circuit is 60 micro-Farad ? | |
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52.4
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53.1
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58.6
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55.5
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| 4. | Determine the capacitance (in mF) of a circuit, when the circuit is supplied with a 60 Hz frequency and the capacitive susceptence of the circuit is 0.5 Siemens ? | |
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1.3
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2.4
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3.6
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5.2
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| 5. | Determine the transient time (in seconds) of a series RC circuit, when the capacitance of the circuit is 4 mF and the resistance of the circuit is 6 kilo-Ohms ? | |
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24
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22
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20
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18
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| 6. | Determine the resonant frequency (in kHz) of a tank circuit, when the capacitance and inductance of the circuit is 0.08 mF and 0.08 mH respectively ? | |
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1
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2
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3
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5
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| 7. | What will be the total active power (in kW) consumed by a 3-phase delta connected system which is supplied by a line voltage of 230 V, when the value of phase current is 30 A and the current lags the voltage by 45 degrees ? | |
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10.25
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12.26
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14.63
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16.46
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| 8. | Which of the following statement is TRUE ? | |
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A galvanometer can be converted into voltmeter by connecting a low value of resistance in parallel with the galvanometer.
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A galvanometer can be converted into voltmeter by connecting a high value of resistance in parallel with the galvanometer.
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A galvanometer can be converted into voltmeter by connecting a low value of resistance in series with the galvanometer.
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A galvanometer can be converted into voltmeter by connecting a high value of resistance in series with the galvanometer.
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| 9. | Which of the following bridge is most suitable for the measurement of an unknown capacitance ? | |
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Wheatstone Bridge
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Owen‘s Bridge
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Anderson Bridge
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Schering Bridge
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| 10. | Which of the following measuring instrument has least value of internal resistance ? | |
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Voltmeter
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Ammeter
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Ohm-meter
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Megger
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