Technician A says that hotter than recommended operating temperatures break down engine oil additives. Technician B says that hotter than recommended operating temperatures create varnish and hard deposits. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Question 2
Fuel pump pressure is too low after engine start-up. Which of these could be the cause?
A) Excessive system voltage B) Defective fuel pump rely
C) Plugged fuel filter D) Restricted fuel return line
external combustion engine
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