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WorksheetsPPD semifinal quiz
Total questions: 15
Worksheet time: 8mins
What is a common cause of low compression pressure in marine engines?
Faulty sensors
Blocked air filters
Excessive fuel pressure
Worn piston rings
What effect does piston scuffing have on an engine?
Reduced engine noise
Scored piston surfaces
Improved power output
Increased fuel efficiency
What is an indication of crankshaft misalignment?
Black smoke in exhaust
Increased fuel consumption
Low oil pressure
High vibration levels
What can cause turbocharger overspeed?
Blocked heat exchangers
Faulty fuel injectors
Low oil levels
Excessive exhaust gas pressure
What is a common indication of oil starvation?
Low fuel pressure
Erratic engine performance
High engine temperature
Increased exhaust smoke
What effect does overheating have on an engine?
Increased power output
Potential damage to pistons
Reduced engine noise
Improved fuel efficiency
What is a common cause of clogged fuel injectors?
High coolant levels
Faulty alternator
Excessive lubrication
Dirty fuel
What can indicate a malfunctioning ECU?
Warning lights
High oil pressure
Low fuel consumption
Increased engine temperature
What is a common cause of excessive engine vibration?
Faulty fuel pump
Low oil levels
Shaft misalignment
Blocked air filters
What does blue smoke from the exhaust typically indicate?
Oil burning
Water in the fuel
Incomplete combustion
Excessive engine load
What is a potential effect of valve sticking?
Increased fuel efficiency
Improved power output
Poor exhaust gas evacuation
Reduced engine wear
What can cause battery discharge in an engine?
Electrical system malfunctions
High fuel pressure
Blocked oil filters
Excessive engine load
What is a common indication of contaminated lubricating oil?
High fuel efficiency
Increased oil temperature
Reduced engine noise
Low engine temperature
What can cause incorrect fuel injection timing?
High exhaust gas temperature
Faulty sensors
Low oil levels
Wear of the fuel pump
What is a common symptom of a failing water pump?
Overheating engine
Increased fuel consumption
Low battery voltage
Excessive exhaust noise
