Electrical Engineering MCQ Questions on Electric Power Transmission MCQ Part 4.
Most economical cross-sectional area of Transmission line MCQ
The most economical cross-sectional area of a transmission line conductor is that for which the total annual cost of transmission lines is minimum. The statement belongs to:
- Kelvin’s law
- Lenz’s law
- Faraday’s law
- Ohm’s law
Correct answer: 1. Kelvin’s law
Conductors used in transmission lines are stranded so as to
Conductors used in transmission lines are stranded so as to:
- Increase flexibility
- Reduce cost
- Reduced resistivity
- All of these
Correct answer: 1. Increase flexibility
The function of steel wire in ACSR is to
Function of steel wire in ACSR is to:
- Reduce weight
- Provide mechanical strength
- Reduce skin effect
- Fight surges
Correct answer: 2. Provide mechanical strength
The string efficiency of the string of suspension insulators is dependent on which factor
The string efficiency of the string of suspension insulators is dependent on which of the following factor/factors:
- Size of tower
- Size of insulators
- Number of discs in strings
- All of these
Correct answer: 3. Number of discs in string
Guy wire is used for
Guy wire is used for:
- Providing protection against surges
- Supporting the pole
- Both of these
- None of these
Correct answer: 2. Supporting the pole