DC Machine – Generator Quiz

What is the primary function of a generator?

• Convert mechanical energy into electrical energy

• Convert electrical energy into mechanical energy

• Store electrical energy

• Regulate voltage levels

Which rule is used to determine the direction of current in a generator?

• Ohm's Law

• Fleming's Left-Hand Rule

• Right-Hand Rule for Generators

• Left-Hand Rule

What type of generator produces alternating power?

• DC generator

• AC generator

• Universal generator

• Synchronous generator

In an AC generator, what is the armature?

• The wire loop that rotates

• The external circuit load

• The commutator

• The magnetic field

What happens to the galvanometer needle at position A in an AC generator?

• It deflects to the right

• It stands at zero

• It deflects to the left

• It indicates maximum voltage

What is the role of the commutator in a DC generator?

• To generate mechanical energy

• To provide a magnetic field

• To convert AC to DC

• To increase the speed of rotation

Which type of DC generator has the field windings connected in parallel with the load?

• DC Series Generator

• DC Compound Generator

• DC Universal Generator

• DC Shunt Generator

In a DC Series Generator, how does the output voltage behave with load current?

• It varies with load current

• It increases linearly

• It remains constant

• It decreases with load current

What is the formula for calculating the generated emf in a generator?

• E = V - Ia Ra

• E = V + Ia Ra

• E = Ia + Ra

• E = V / Ia

What is the output torque of a motor calculated from?

• Power and speed

• Voltage and current

• Current and resistance

• Emf and load