250+ TOP MCQs on Base Load and Peak Load and Answers

Power Systems Multiple Choice Questions on “Base Load and Peak Load”.

1. The unvarying load, which occurs almost the whole day on the power plant is called _________
A. Base load
B. Peak load
C. Average load
D. Discrete load

Answer: A
Clarification: The load on any power plant can be conveniently considered into two parts namely ‘base load’ and ‘peak load’. The unvarying load which occurs almost the whole day on the power plant is called base load.

2. If there is one power plant only, the installed capacity of that power plant should be equal to ____
A. Average load
B. Base load
C. Peak load
D. Minimum load

Answer: c
Clarification: If the load is to be supplied from one power plant only then the installed capacity of the plant should be equal to the peak load or more. Otherwise during peak load period the plant will not be able to meet the load demand.

3. The various peak demands of the load above the base load of power plant is called _________
A. Base load
B. Over load
C. Extra load
D. Peak load

Answer: D
Clarification: Various peak demands of the load over and above the base load of the power plant is called peak load. The unvarying load which occurs almost the whole day on the power plant is called base load.

4. The system supplying base and peak loads will be more economical if power is supplied by _________
A. Only gas turbine power plant
B. Only thermal power plant
C. Only Deasel power plant
D. Combined operation of various power plants.

Answer: D
Clarification: The system containing only one power plant would be uneconomical since. Gas turbine and Diesel power plants operate economically only for peak load and Thermal power plant is suitable only for base load. Hence such power loads should not be supplied from single power plant.

5. Power plants to be employed as base load plants are not required to have ___________
A. Capability of working continuously
B. Low operating cost
C. Capability of quick start
D. Economical and speedy repair

Answer: C
Clarification: Capability of quick start is the essential requirement for peak load plant. Base load plants are started once and operated for long time so capability of quick start is not an essential requirement for base load plants.

6. Which of the following is an essential requirement for a peak load plant ___________
A. Capability of working continuously
B. Low operating cost
C. Capability of quick start
D. Economical and speedy repair

Answer: C
Clarification: The power plants to be employed as peak load plant should only have the capability of quick start, synchronization and taking up of system load and quick response to load variations.

7. Which of the following is not suitable to uses as peak plant?
A. Hydroelectric power plant
B. Gas power plant
C. Diesel elected plant
D. Nuclear power plant

Answer: D
Clarification: The power plants to be employed as peak load plant should have the capability of quick start and quick response to load variations. Nuclear power plant is not suitable for variable load operation as the reactor cannot be easily controlled to respond quickly to load variations.

8. Which of the following power plant cannot be used as base load plant?
A. Hydroelectric power plant
B. Nuclear power plant
C. Diesel elected plant
D. Thermal power plant

Answer: C
Clarification: The power plant to be employed as base load plant should have low operating cost. Diesel power plants have very high operating cost and so it is not suitable to use as base load plant.