Electrical Engineering MCQs on Power Generation MCQs Part 42
Contents
The power plant that takes least time in starting from cold condition to full load operation
The power plant that takes least time in starting from cold condition to full load operation
- Gas turbine plant
- Hydroelectric power plant
- Nuclear power plant
- Thermal power plant
Correct answer: 2. Hydroelectric power plant
The output power of a nuclear power station is proportional to
The output power of a nuclear power station is proportional to
- Square of the rate at which fission reaction occurs
- Square root of the rate at which fission reaction occurs
- The rate at which fission reaction occurs
- None of above
Correct answer: 3. The rate at which fission reaction occurs
Graphite is used in nuclear plant as
Graphite is used in nuclear plant as
- Coolant
- Electrode
- Fuel
- Moderator
Correct answer: 4. Moderator
Explanation: Graphite is used in nuclear plant as moderator. The moderator in nuclear power plant is intentionally placed in a nuclear reactor core to slow neutrons down from their initial fast speeds. Utilizing a moderator in nuclear plants makes it much easier to attain a nuclear chain reaction.
Graphite is used in a reactor to slow down high-velocity neutrons, thereby increasing the likelihood of fission.
Deflectors are provided in
Deflectors are provided in
- Francis turbine
- Kaplan turbine
- Pelton wheel
- Propeller turbine
Correct answer: 3. Pelton wheel
An impulse turbine is used for
An impulse turbine is used for:
- Low water head
- Medium water head
- High water head
- None of these
Correct answer: 3. High water head
Explanation: Classification of Hydroelectric plants on the basis of Head:
- Low head powerplants: < 15 m
- Medium head powerplants: 15-70 m
- High head powerplants: 71-250 m
- Very-high head powerplants: Greater than 250 m