MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
For which of the following equipment current rating is not necessary? |
| A. | Circuit breakers |
| B. | Isolators |
| C. | Load break switch |
| D. | Circuit breakers and load break switches |
| Answer» C. Load break switch | |
| 2. |
By which of the following methods string efficiency can be improved? |
| A. | Using a guard ring |
| B. | Grading the insulator |
| C. | Using long cross arm |
| D. | Any of the above |
| Answer» E. | |
| 3. |
Which of the following bus-bar schemes has the lowest cost? |
| A. | Ring bus-bar scheme |
| B. | Single bus-bar scheme |
| C. | Breaker and a half scheme |
| D. | Main and transfer scheme |
| Answer» C. Breaker and a half scheme | |
| 4. |
Which of the following relays is used on long transmission lines? |
| A. | Impedance relay |
| B. | Mho s relay |
| C. | Reactance relay |
| D. | None of the above |
| Answer» C. Reactance relay | |
| 5. |
Which of the following distribution systems is more reliable? |
| A. | Radial system |
| B. | Tree system |
| C. | Ring main system |
| D. | All are equally reliable |
| Answer» D. All are equally reliable | |
| 6. |
Which of the following is the demerit of a constant voltage transmission system ? |
| A. | Increase of short-circuit current of the system |
| B. | Availability of steady voltage at all loads at the line terminals |
| C. | Possibility of better protection for the line due to possible use of higher terminal reactants |
| D. | Improvement of power factor at times of moderate and heavy loads |
| Answer» B. Availability of steady voltage at all loads at the line terminals | |
| 7. |
_______________are the conductors, which connect the consumer s terminals to the distribution? |
| A. | Distributors |
| B. | Service mains |
| C. | Feeders |
| D. | None of the above |
| Answer» C. Feeders | |
| 8. |
When a live conductor of public electric supply breaks down and touches the earth which of the following will happen? |
| A. | Current will flow to earth |
| B. | Supply voltage will drop |
| C. | Supply voltage will increase |
| D. | No current will flow in the conductor |
| Answer» B. Supply voltage will drop | |
| 9. |
Series capacitors on transmission lines are of little use when the load VAR requirement is___________? |
| A. | Large |
| B. | Small |
| C. | Fluctuating |
| D. | Any of the above |
| Answer» C. Fluctuating | |
| 10. |
In the analysis of which of the following lines shunt capacitance is neglected? |
| A. | Short transmission lines |
| B. | Medium transmission lines |
| C. | Long transmission lines |
| D. | Medium as well as long transmission lines |
| Answer» B. Medium transmission lines | |