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FIRST PUBLISH OCTOBER 2024
ASE 21-30 Exam Practice Questions and
Answers
Technician A says most OEMs (original equipment manufacturers) recommend an oil change interval of
7,500 to 12,000 miles, or every 6 month. Technician B says oil change intervals are controlled
electronically through an oil life monitor on the dash. Who is right? - Ans:✔✔-Both A and B
The engine oil pan uses a RTV (Room Temperature Vulcanizer) silicone sealer instead of a gasket.
Technician A says you cannot wait more than 3 minutes before assembling the pan to the engine.
Technician B says you can use either silicone sealer or anaerobic sealer to install the oil pan. Who is
right? - Ans:✔✔-A only
All of the following tasks are done when checking secondary ignition components during ignition system
maintenance, EXCEPT: - Ans:✔✔-Do a voltage drop across coil terminals
Technician A says if the PCV (Positive Crankcase Ventilator) valve is clogged, the engine could have a
rough idle. Technician B says that the PCV valve rattles when it is working properly. Who is right? -
Ans:✔✔-A only
Page 1/2
FIRST PUBLISH OCTOBER 2024
ASE 21-30 Exam Practice Questions and
Answers
Technician A says most OEMs (original equipment manufacturers) recommend an oil change interval of
7,500 to 12,000 miles, or every 6 month. Technician B says oil change intervals are controlled
electronically through an oil life monitor on the dash. Who is right? - Ans:✔✔-Both A and B
The engine oil pan uses a RTV (Room Temperature Vulcanizer) silicone sealer instead of a gasket.
Technician A says you cannot wait more than 3 minutes before assembling the pan to the engine.
Technician B says you can use either silicone sealer or anaerobic sealer to install the oil pan. Who is
right? - Ans:✔✔-A only
All of the following tasks are done when checking secondary ignition components during ignition system
maintenance, EXCEPT: - Ans:✔✔-Do a voltage drop across coil terminals
Technician A says if the PCV (Positive Crankcase Ventilator) valve is clogged, the engine could have a
rough idle. Technician B says that the PCV valve rattles when it is working properly. Who is right? -
Ans:✔✔-A only
Page 1/2
