Electrical Machines Quiz

What is the working principle of DC motors?

• Voltage generation

• Current generation

• Torque generation

• Speed generation

Which type of generator is based on the principle of electromagnetic induction?

• Induction generator

• DC Self excited generator

• DC Separately excited generator

• AC generator

What is the main function of a Transformer?

• Energy generation

• Power generation

• Current generation

• Voltage generation

What is the EMF equation for DC generators?

• V = Ldi/dt

• V = IZ

• V = IR

• V = EB - IaRa

Which type of motor is known for its high starting torque?

• Synchronous motor

• Induction motor

• DC motor

• Transformer

What is the main application of a Three Phase Alternator?

• Voltage regulation

• Power generation

• Current measurement

• Speed control

What is the equation for Torque in Electrical Machines?

• T = V/I

• T = P/ω

• T = V^2/R

• T = I^2R

Which type of motor does not require external excitation for its operation?

• Transformer

• DC motor

• Synchronous motor

• Induction motor

What is the main function of a Synchronous motor?

• Voltage generation

• Speed control

• Torque generation

• Power factor correction

What is the main application of a Three Phase Induction Motor?

• Power generation

• Speed control

• Voltage regulation

• Torque generation