MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In Maxwell s capacitance bridge for calculating unknown inductance, the various values at balance are, R1 = 300 , R2 = 700 , R3 = 1500 , C4 = 0.8 F. The values of R1, L1 and Q factor, if the frequency is 1100 Hz are ____________ |
| A. | 240 , 0.12 H, 3.14 |
| B. | 140 , 0.168 H, 8.29 |
| C. | 140 , 0.12 H, 5.92 |
| D. | 240 , 0.36 H, 8.29 |
| Answer» C. 140 , 0.12 H, 5.92 | |
| 2. |
In the Two wattmeter method of measuring power in a balanced three-phase circuit, one wattmeter shows zero and the other positive maximum. The load power factor is ___________ |
| A. | 0 |
| B. | 0.5 |
| C. | 0.866 |
| D. | 1.0 |
| Answer» C. 0.866 | |
| 3. |
A resistor of 10 k with a tolerance of 5% is connected in parallel with 5 k resistors of 10% tolerance. The tolerance limit is __________ |
| A. | 9% |
| B. | 12.4% |
| C. | 8.33% |
| D. | 7.87% |
| Answer» D. 7.87% | |
| 4. |
The voltage drop across a standard resistor of 0.2 is balanced at 83 cm. The magnitude of the current, if the standard cell emf of 1.53 V is balanced at 42 m is ___________ |
| A. | 13.04 A |
| B. | 10 A |
| C. | 14.95 A |
| D. | 12.56 A |
| Answer» D. 12.56 A | |
| 5. |
An RLC series circuit has a resistance R of 20 and a current which lags behind the applied voltage by 45 . If the voltage across the inductor is twice the voltage across the capacitor, the value of inductive resistance is ____________ |
| A. | 10 |
| B. | 20 |
| C. | 40 |
| D. | 60 |
| Answer» D. 60 | |