Question When starting a vehicle, the oil pressure should: Answers Slowly build up pressure over a few minutes. Come up to a normal level within a few seconds. Start high, then decrease quickly while the engine runs. Explanation After starting a vehicle's engine, the oil pressure should come up to a normal level within seconds. Do not operate a vehicle if it has oil pressure that is low, dropping, or fluctuating. Take a FREE Practice Test Now This questions appears in the following tests: Arkansas Knowledge Test Class A , Wyoming Knowledge Test Class B , Oregon Double ,