Quiz 5

The ratio between the active power and apparent power is called power factor. Power factor can also be defined as _________.

• Cosine of angle between current and voltage of an Ac circuit
• Sine of angle between current and voltage of an Ac circuit
• sum of current and voltage of an Ac circuit
• product of current and voltage of an Ac circuit

Low power factor has a drawback of __________.

• Increased transmission and distribution losses
• Poor voltage regulation
• High cost of equipment for given load
• All of these

The power which is actually consumed or utilized in an AC Circuit is called -------------------

• True power
• Reactive Power
• Apparent Power
• power

The product of applied voltage and active component of the current.

• True power
• Reactive Power
• Apparent Power
• power

The applied voltage and the reactive component of the current.

• True power
• Reactive Power
• Apparent Power
• power

The product of R.M.S value of voltage (V) and current (I).

• True power
• Reactive Power
• Apparent Power
• power

What will be the power when Current and Voltage are 90 Degree Out of Phase?

• Minimum
• Maximum
• Infinite
• zero.

What will be the power in a pure capacitive circuit?

• Minimum
• Maximum
• Infinite
• zero.

What will be the power in a pure inductive circuit?

• Minimum
• Maximum
• Infinite
• zero.

The primary reason for low power factor is owing to installation of __________

• Synchronous motor
• DC motor
• Induction motor
• Commutator motor