MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a parallel circuit having two branches, the current in one branch is I1 = 100 ± 2 A and in the other is I2 = 200 ± 5 A. Considering errors in both I1 and I2 as limiting errors, the total current will be |
| A. | 300 ± 5 A |
| B. | 300 ± 6 A |
| C. | 300 ± 7 A |
| D. | 300 ± 8 A |
| Answer» D. 300 ± 8 A | |
| 2. |
A 0 – 10 A ammeter has a guaranteed accuracy of 1 percent of full scale deflection. What will be the limiting error in the reading of 2.5 A? |
| A. | 1 per cent |
| B. | 4 per cent |
| C. | 2 per cent |
| D. | 3 per cent |
| Answer» C. 2 per cent | |
| 3. |
Calculate the relative error wherein the measured value of the capacitor is 204.3 μF, whereas its true value is 201.4 μF. |
| A. | 1.43 percent |
| B. | 1.23 percent |
| C. | 1.68 percent |
| D. | 1.94 percent |
| Answer» B. 1.23 percent | |
| 4. |
Four ammeters M1, M2, M3 and M4 with the following specifications are available. (Full scale, accuracy value as percentage of FS)M1 = 20 ± 0.10M2 = 10 ± 0.20M3 = 5 ± 0.50M4 = 1 ± 1.00A current 1 A is to be measured to obtain minimum error in the reading one should select the meter |
| A. | M1 |
| B. | M2 |
| C. | M3 |
| D. | M4 |
| Answer» E. | |
| 5. |
A liquid flows through a pipe of 100 mm diameter at a velocity of 1 m/s. If the diameter is guaranteed within ±1% and the velocity is known to be within ±3% of measured value, the limiting error for the rate of flow is |
| A. | ±1% |
| B. | ±2% |
| C. | ±3% |
| D. | ±5% |
| Answer» E. | |
| 6. |
A 200 milli-Ampere meter has accuracy of ± 0.5 percent. Its accuracy while reading 100 milli-Ampere will be |
| A. | ± 2.5 percent |
| B. | ± 5 percent |
| C. | ± 7.5 percent |
| D. | ± 1 percent |
| Answer» E. | |
| 7. |
An 820 Ω resistance with an accuracy of ± 10% carries a current of 10 mA. The current was measured by an analog meter of 25 mA range with an accuracy of ± 2% of full scale. The accuracy in the measurement of power dissipated in the resistor is |
| A. | 5% |
| B. | 20% |
| C. | 10% |
| D. | 15% |
| Answer» C. 10% | |
| 8. |
A meter reads 125 V and the true value of the voltage is 125.5 V. Find the static error of the instrument. |
| A. | 125/0.5 V |
| B. | 125 V |
| C. | 0.5 V |
| D. | 0.5 / 125 V |
| Answer» D. 0.5 / 125 V | |
| 9. |
In any device, the difference between the measured value & true value is referred as |
| A. | Error |
| B. | Expected value |
| C. | Log |
| D. | Fidelity |
| Answer» B. Expected value | |
| 10. |
An ammeter of range 0-25 Amp has an accuracy of 1% of full scale reading. The current measured by the ammeter is 5 Amp. The limiting error in the reading is: |
| A. | 2% |
| B. | 2.5% |
| C. | 4% |
| D. | 5% |
| Answer» E. | |
| 11. |
A thermometer is calibrated from 150°C to 300°C. The accuracy is specified as ± 0.2% of span. What is the maximum static error? |
| A. | ± 0.6°C |
| B. | ± 0.3°C |
| C. | ± 0.03°C |
| D. | ± 0.06°C |
| Answer» C. ± 0.03°C | |
| 12. |
Five observers have taken a set of independent voltage measurements and recorded as 110.10 V, 110.20 V, 110.15 V, 110.30 V and 110.25 V. Under the situation mentioned above, the range of error is |
| A. | ± 0.3 |
| B. | ± 0.1 |
| C. | ± 0.2 |
| D. | ± 1.0 |
| Answer» C. ± 0.2 | |