3.2 Light Vehicle Repair Service Quiz

What is the purpose of the information sheet provided?

• To explain the basics of engine repair

• To describe the history of vehicle engines

• To provide a better understanding of engine cylinder leak testing

• To list the tools required for engine overhaul

What is the main tool required to supply high-pressure compressed air for leak testing?

• Leakdown gauge kit

• Spark plug socket

• Air compressor

• Basic hand tools

What is the function of the internal combustion engine?12345

• To generate power by mixing air and fuel

• To cool down the engine cylinders

• To measure the engine compression ratio

• To remove engine components

What does a compression test measure in an engine?

• The engine's cooling system

• The engine's fuel efficiency

• The engine's exhaust emissions

• The engine's ability to generate pressure

Where should the piston surface be before introducing air into the engine for testing?12345

• Bottom Dead Center (BDC)

• Side Dead Center (SDC)

• Middle Dead Center (MDC)

• Top Dead Center (TDC)

What does a reading of 5-10% compression loss indicate in an engine?

• Performance degradation

• Major issues present

• Immediate maintenance required

• Excellent condition for operation

What is the best way to determine where the problem is before overhauling the engine?

• Conducting a compression test

• Listening for unusual engine noises

• Performing an engine leak test

• Checking the vehicle service manual

What does the acronym EGR stand for in the context of engine testing?12345

• Exhaust Gas Recirculation

• Exhaust Gear Regulation

• Engine Gear Ratio

• Engine Gas Recirculation

What is the purpose of isolating the PCV valve during an engine leak test?

• To cool down the engine cylinders

• To prevent air leaks through the exhaust pipe

• To determine the direction of air flow

• To increase engine compression

What is the main indication of a leak in the intake valve during an engine leak test?

• Air coming out through the carburetor

• Hissing sound from the tailpipe

• Whistling sound from the exhaust pipe

• Air bubbles inside the radiator