Power Generation MCQs Part 21

Power Generation MCQs Part 21

Which of following power plants will take the least time in starting from cold conditions to full load conditions:

Which of following power plants will take the least time in starting from cold conditions to full load conditions:

1. Hydroelectric power plant
2. Gas power plant
3. Steam power plant
4. Nuclear power plant

Correct answer: 1. Hydroelectric power plant

A power supply has domestic load having maximum demand of 2000 kW. If diversity factor and demand factor are 1.15 and 0.8 respectively, then connected domestic load is

A power supply has domestic load having maximum demand of 2000 kW. If diversity factor and demand factor are 1.15 and 0.8 respectively, then connected domestic load is:

1. 2200
2. 2250
3. 2300
4. 2350

Solution:

Sum of max demands of different domestic consumers = Max domestic demand * Diversity factor = 2000 * 1.15 = 2300 kW

——————–

Connected domestic load = 2300/Demand factor = 2300/0.8 = 2875 kW

Which of the following power plant has no standy losses

Which of the following power plant has no standy losses:

1. Steam power plant
2. Diesel power plant
3. Nuclear power plant
4. Hydroelectric power plant

Correct answer: 4. Hydroelectric power plant

The maximum demand of a consumer is 5 kW and daily energy consumption is 40 units. The load factor is

The maximum demand of a consumer is 5 kW and his daily energy consumption is 40 units. The load factor is:

1. 0.33%
2. 9.33%
3. 21.33%
4. 33.33%

Solution:

Load factor = {Daily consumption/(Max. demand * 24)} * 100 = (40/(5*24))*100 = 33.33%

A hydroelectric station is supplied from a catchment area of 200 km² with annual rainfall of 210 cm and has an effective head of 300 m. The yield factor is 65%. The available power is

A hydroelectric station is supplied from a catchment area of 200 km² with annual rainfall of 210 cm and has an effective head of 300 m. The yield factor is 65%. The available power is:

1. 25451kW
2. 25901kW
3. 26351kW
4. 26801kW