Unnati Vehicles CAR Technician Interview Questions, Process, and Tips

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 ...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 rotationa

There are several types of pistons used in car engines.

• Cast pistons

• Forged pistons

• Hypereutectic pistons

• Aluminum pistons

• Piston rings

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 three types of piston rings: compression rings, oil control rings, and scraper rings.

• Compression rings seal the combustion chamber and prevent gas leakage.

• Oil control rings regulate the amount of oil on the cylinder walls.

• Scraper rings remove excess oil from the cylinder walls.

• Examples of piston ring manufacturers include Mahle, Hastings, and NPR.