# Power Factor MCQ [PF & PF Correction Multiple Choice Questions]

The power factor is the ratio of reak to apparent power. Power factor can be measured either in the form of a percentage (0-100%) or by a number (0-1)

Where 1 or 100% indicates the maximum power factor. The higher the power factor is, the more economical and beneficial the system is.

## MCQ on Power Factor

Power factor can be mathematically expressed as:

1. P/Q
2. Q/P
3. P/S
4. S/P

The power factor angle of a purely inductive circuit is:

1. 45 degree
2. 60 degree
3. 75 degrees
4. 90 degree

In a load comprising of resistance and inductance:

3. Both are in phase
4. Any of above

The power factor of capacitive circuits is:

2. Lagging
3. Both of these
4. Any of these

A circuit having poor power factor will draw:

1. No current
2. Low current
3. Normal current
4. High current

The power factor of purely inductive circuits is:

2. Lagging
3. Both of these
4. Any of these

A 500 kVA circuit drawing 200 kW and an inductive load requires how much capacitance to obtain unity power factor:

1. 100
2. 200
3. 300
4. 400

1. 