MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Power Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A three phase 50 Hz transmission line has flat horizontal spacing with 3.5 m between adjacent conductors. The conductors are No. 2/0 hard drawn copper (outside diameter = 1.05cm). The voltage f the line is 110 kV. The reactive volt amperes generated by the line is |
| A. | 31.4 kVAR |
| B. | 62.8 kVAR |
| C. | 42 kVAR |
| D. | 56 kVAR |
| Answer» B. 62.8 kVAR | |
| 2. |
A three phase 50 Hz transmission line has flat horizontal spacing with 3.5 m between adjacent conductors. The conductors are No. 2/0 hard drawn copper (outside diameter = 1.05cm). The voltage f the line is 110 kV. The line charging current per conductor of the line is _____________ |
| A. | 0.085 A/km |
| B. | 0.17 A/km |
| C. | 0.12 A/km |
| D. | 0.24 A/km |
| Answer» B. 0.17 A/km | |
| 3. |
A three phase 50 Hz transmission line has flat horizontal spacing with 3.5 m between adjacent conductors. The conductors are No. 2/0 hard drawn copper (outside diameter = 1.05cm). The voltage f the line is 110 kV. The line charging current per km of the line is _______________ |
| A. | 0.17 A/km |
| B. | 0.34 A/km |
| C. | 0.24 A/km |
| D. | 0.48 A/km |
| Answer» B. 0.34 A/km | |
| 4. |
A three phase 50 Hz transmission line has flat horizontal spacing with 3.5 m between adjacent conductors. The conductors are No. 2/0 hard drawn copper (outside diameter = 1.05cm). The voltage f the line is 110 kV. The capacitive reactance to neutral per kilometre of line is ____________ |
| A. | 0.384 x 106 Ω/km to neutral |
| B. | 0.768 x 106 Ω/km to neutral |
| C. | 0.284 x 106 Ω/km to neutral |
| D. | 0.642 x 106 Ω/km to neutral |
| Answer» B. 0.768 x 106 Ω/km to neutral | |
| 5. |
A three phase 50 Hz transmission line has flat horizontal spacing with 3.5 m between adjacent conductors. The conductors are No. 2/0 hard drawn copper (outside diameter = 1.05cm). The voltage f the line is 110 kV. The capacitance to neutral per kilometre of line is |
| A. | 0.00826 μF/km |
| B. | 0.0826 μF/km |
| C. | 0.01652 μF/km |
| D. | 0.1652 μF/km |
| Answer» B. 0.0826 μF/km | |
| 6. |
Charging current in the transmission line is _______________ |
| A. | drawn at open as well as closed end of the transmission line |
| B. | drawn at closed end of the transmission line |
| C. | drawn at open end of the transmission line |
| D. | drawn at the shunt capacitance at closed end of transmission line. |
| Answer» B. drawn at closed end of the transmission line | |
| 7. |
Conductance is the result of the leakage over the surface of insulators. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Shunt admittance of a transmission line comprises of ______ |
| A. | capacitance with conductance |
| B. | capacitance with inductance |
| C. | resistance with inductance |
| D. | capacitance with susceptance |
| Answer» B. capacitance with inductance | |