Compression test.

What is the primary purpose of a compression test?

• To measure the fuel efficiency

• To check the oil level in the engine

• To inspect the exterior condition of the engine

• To assess the mechanical health of the engine

What are you checking for in a compression test?

• The piston rings, valves, and the engine's ability to produce compression

• The battery health

• The condition of the spark plugs only

• The quality of the engine oil

What is the first step in performing a compression test?

• Removing the spark plugs

• Starting the engine to warm it up

• Checking the engine oil

• Disconnecting the battery

Why is it important to inspect the spark plugs when performing a compression test?

• Because they can indicate issues within the combustion chamber

• To clean them

• To replace them with new ones

• To check their compatibility with the engine

What does a significant difference between dry and wet test results indicate?

• Leaking engine oil

• Worn out piston rings

• Faulty spark plugs

• A fully healthy engine

How can you disable the ignition system during a compression test?

• By draining the engine oil

• By removing the tires

• By disconnecting the connectors at the distributor

• By removing the engine

What does the 'clear flood mode' do?

• Activates the emergency brake

• Turns off the injectors

• Increases engine power

• Cleans the fuel system

What is indicated by two adjacent cylinders having low compression?

• Faulty spark plugs

• A healthy engine

• A possible head gasket failure

• A clogged fuel injector

What might be necessary if an engine has worn out piston rings?

• Refilling the engine oil

• Cleaning the fuel injectors

• Boring or sleeving the cylinder

• Replacing the spark plugs

What is the next diagnostic step if compression testing doesn't reveal the cause of engine issues?

• Upgrading the exhaust system

• A leak down test

• Replacing the engine immediately

• Checking the paint job