DC Generator & motor Quiz

What is the primary function of a DC generator?

• To convert electrical energy into mechanical energy

• To convert mechanical energy into electrical energy

• To store electrical energy

• To regulate voltage

Which component of a DC generator is responsible for converting mechanical energy into electrical energy?

• Commutator

• Armature

• Field windings

• Brushes

In a DC generator, what is the role of the commutator?

• To convert AC to DC

• To convert DC to AC

• To maintain unidirectional current

• To store energy

What is the main difference between a DC generator and a DC motor?

• A DC generator converts electrical energy into mechanical energy, while a DC motor does the opposite.

• A DC generator converts mechanical energy into electrical energy, while a DC motor does the opposite.

• A DC generator stores energy, while a DC motor releases energy.

• There is no difference; they are the same device.

Which of the following is NOT a part of a DC generator?

• Armature

• Commutator

• Field windings

• Transformer

What is the purpose of the brushes in a DC generator?

• To clean the commutator

• To conduct current between stationary and rotating parts

• To store electrical energy

• To regulate voltage

Which law is primarily used to describe the operation of a DC generator?

• Ohm's Law

• Faraday's Law of Electromagnetic Induction

• Coulomb's Law

• Newton's Third Law

What type of current does a DC generator produce?

• Alternating Current (AC)

• Direct Current (DC)

• Pulsating Current

• None of the above

In a DC motor, what is the function of the field windings?

• To generate a magnetic field

• To convert mechanical energy into electrical energy

• To store electrical energy

• To regulate the speed

What happens to the direction of the current in the armature of a DC motor?

• It remains constant

• It reverses periodically

• It becomes zero

• It fluctuates randomly