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
Examples of behavioural mechanisms by which animals cope with extreme temperatures.
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Using a torque wrench to tighten connecting rod nuts on an engine.
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Thermometer Showing the Temperatures