Electric Vehicle Technology Quiz

What is the primary function of a power inverter in an electric vehicle?

• Convert AC to DC for battery charging

• Convert DC to AC for motor operation

• Regulate battery voltage

• Control regenerative braking

Which type of motor is most commonly used in modern electric vehicles?

• Brushed DC motor

• Brushless DC motor

• Permanent Magnet Synchronous Motor (PMSM)

• Universal motor

What is the typical voltage range for EV traction batteries?

• 12-48V

• 100-200V

• 300-800V

• 1000-1500V

Which switching device is most commonly used in EV power inverters?

• Thyristor

• MOSFET

• IGBT (Insulated Gate Bipolar Transistor)

• BJT (Bipolar Junction Transistor)

What does PWM stand for in power electronics?

• Power Wave Modulation

• Pulse Width Modulation

• Peak Waveform Management

• Phase Width Manipulation

In regenerative braking, what happens to the kinetic energy of the vehicle?

• It is dissipated as heat in brake pads

• It is converted back to electrical energy and stored in the battery

• It is released to the atmosphere

• It is used to power auxiliary systems only

What is the main advantage of Silicon Carbide (SiC) semiconductors over traditional Silicon in EV applications?

• Lower cost

• Higher switching frequency and efficiency

• Easier manufacturing process

• Better availability

Which charging method provides the fastest charging for electric vehicles?

• Level 1 AC charging

• Level 2 AC charging

• DC fast charging

• Wireless charging

What is the purpose of a DC-DC converter in an electric vehicle?

• Convert high voltage DC to low voltage DC for auxiliary systems

• Convert AC to DC

• Increase battery capacity

• Control motor speed

Which control technique is commonly used for precise motor control in EVs?

• Bang-bang control

• Vector control (Field Oriented Control)

• Simple on-off control

• Analog control