Engine mechanical checks

What are the four essential elements needed for an internal combustion engine to work properly?

• Fuel, water, air, and oil

• Oil, water, spark, and compression

• Fuel, air, spark, and compression

• Spark, oil, water, and air

What is the main purpose of a static compression test?

• To check the fuel quality

• To measure a cylinder's ability to seal

• To test the battery's charge

• To check the engine's oil level

Why is it important to perform a wet static compression test?

• To check the fuel efficiency

• To isolate faults related to piston rings or cylinder walls

• To clean the engine

• To test the spark plugs

What does a dynamic compression test help identify?

• Fuel contamination

• Oil leaks

• Airflow problems in the engine

• Battery issues

What is the maximum allowable cylinder leakage during a leak down test?

• 40%

• 30%

• 10%

• 20%