CAR Technician Interview Questions and Answers

Turbocharger increases engine power by compressing air and delivering it to the engine.

• Turbocharger is a device that uses exhaust gases to compress the incoming air into the engine.

• It increases the density of the air entering the engine, allowing more fuel to be burned and producing more power.

• By forcing more air into the combustion chamber, turbocharger improves engine efficiency and performance.

• It helps in achieving higher horsepower and torque output.

• Turbochargers are comm...read more

Types of gears include spur gears, helical gears, bevel gears, worm gears, and rack and pinion gears.

• Spur gears have straight teeth and are used for parallel shafts.

• Helical gears have angled teeth and provide smoother and quieter operation.

• Bevel gears have cone-shaped teeth and are used for intersecting shafts.

• Worm gears have a screw-like structure and provide high gear reduction.

• Rack and pinion gears convert rotational motion into linear motion.

Sensors are devices that detect and respond to changes in their environment. There are various types of sensors used in cars.

• Temperature sensor

• Oxygen sensor

• Mass airflow sensor

• Throttle position sensor

• Crankshaft position sensor

• Camshaft position sensor

• Wheel speed sensor

• ABS sensor

• Parking sensor

• Rain sensor

There are several types of pistons used in car engines.

• Cast pistons

• Forged pistons

• Hypereutectic pistons

• Aluminum pistons

• Piston rings