Turbocharger Quiz

What is the primary purpose of fitting a turbocharger to an engine?

• To reduce fuel consumption

• To increase the density of air entering the engine

• To decrease engine noise

• To improve vehicle aesthetics

What type of engine is a turbocharger almost universally fitted to?

• Petrol engine

• Electric engine

• Diesel engine

• Hybrid engine

By definition, what is a turbocharger?

• A fuel injector

• An exhaust gas-driven centrifugal pump

• A cooling system

• A battery charger

What is the volumetric efficiency of an engine fitted with a turbocharger?

• Less than 50%

• Exactly 100%

• Greater than 100%

• Exactly 90%

What component is housed on the hot side of a turbocharger?

• Compressor Wheel

• Turbine

• Journal Bearings

• Oil Inlet

What is the function of the cold side of a turbocharger?

• Houses the Turbine

• Compresses air to be sent to the engine/intercooler

• Provides oil pressure

• Acts as a heat shield

Why is adequate oil pressure important in a turbocharger?

• To cool the engine

• To ensure longevity of the turbocharger

• To increase exhaust gas flow

• To reduce noise

What is the function of the wastegate actuator in a turbocharger?

• It increases the turbine speed.

• It opens a wastegate valve to bypass the turbine wheel.

• It decreases the exhaust gas temperature.

• It controls the fuel injection rate.

How is the wastegate actuator typically operated?

• Manually

• Hydraulically

• Electronically or pneumatically

• Magnetically

What is the purpose of allowing exhaust gas to bypass the turbine wheel?

• To increase engine noise

• To limit compressor speed and maximum boost pressure

• To enhance fuel efficiency

• To reduce engine size