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

** Electrical Engineering MCQ** shares Power Factor MCQ Questions.

Electrical Engineering MCQ

## Power Factor is a ratio of

Power factor is a ratio of:

- True power to apparent power
- Apparent power to true power
- Sum of real and reactive to apparent power
- Apparent power to (real – reactive) power

Correct answer: 1. True power to apparent power

## Power factor can be mathematically expressed as

Power factor can be mathematically expressed as:

- P/Q
- Q/P
- P/S
- S/P

Correct answer: 3. P/S

## The power factor angle of a purely inductive circuit is

The power factor angle of a purely inductive circuit is:

- 45 degree
- 60 degree
- 75 degrees
- 90 degree

Correct answer: 4. 90 degrees

## In a load comprising of resistance and inductance

In a load comprising of resistance and inductance:

- Load current lags voltage
- Load voltage lags current
- Both are in phase
- Any of above

Correct answer: 1. Load current lags voltage

## Maximum value of Power Factor is

The maximum value of power factor is:

- 0
- 0.3
- 0.95
- 1

Correct answer: 4. 1

Explanation: *The maximum value of power factor is 1. The maximum power factors exists in a purely resistive circuit.*

## The power factor of capacitive circuits is

The power factor of capacitive circuits is:

- Leading
- Lagging
- Both of these
- Any of these

Correct answer: 1. Leading

## A circuit having poor power factor will draw

A circuit having poor power factor will draw:

- No current
- Low current
- Normal current
- High current

Correct answer: 4. High current

## The power factor of purely inductive circuits is

The power factor of purely inductive circuits is:

- Leading
- Lagging
- Both of these
- Any of these

Correct answer: 2. Lagging

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

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

- 100
- 200
- 300
- 400

Correct answer: 3. 300

Similar Questions on Power Factor:

Thanks for this Mcqs

In the MCQ “power factor can be mathematically expressed as” the answer given here (P/Q) is wrong. The right answer should be (P/S) as per the definition of power factor.

Dear Karan. There was typo mistake. Corrected now. Thanks for correction.