Diagnostic Engineer Interview Questions and Answers

Relays are electrically operated switches that open and close circuits. IPM motors use power transistors to control the motor speed and direction with a DC battery supply.

• Relays work by using an electromagnet to mechanically switch contacts open or closed.

• IPM motors use power transistors to control the motor's speed and direction by adjusting the voltage and current supplied to the motor.

• DC battery supply provides the necessary power for the IPM motor to operate efficiently.

• I...read more

Onboard vehicle diagnostics refer to the system in a vehicle that monitors and reports on the health and performance of various components.

• Onboard vehicle diagnostics use sensors and software to monitor the engine, transmission, brakes, and other systems for issues or malfunctions.

• The system can alert the driver to potential problems through warning lights on the dashboard or by providing error codes that can be read using a diagnostic tool.

• Onboard vehicle diagnostics can hel...read more

Electric vehicles typically use AC induction motors or permanent magnet motors.

• AC induction motors are commonly used in electric vehicles due to their simplicity and reliability.

• Permanent magnet motors are also popular for their high efficiency and compact size.

• Examples of electric vehicles using AC induction motors include Tesla Model S and Nissan Leaf.

• Examples of electric vehicles using permanent magnet motors include Chevrolet Bolt and BMW i3.

MOSFET is a type of transistor that uses an electric field to control the flow of current.

• MOSFET stands for Metal-Oxide-Semiconductor Field-Effect Transistor.

• It has three terminals: gate, source, and drain.

• The gate terminal controls the flow of current between the source and drain.

• MOSFET operates in three regions: cutoff, triode, and saturation.

• It is commonly used in amplifiers, switches, and digital circuits.