Which instrument gauges should be checked immediately after starting the vehicle's engine?

• A. Oil, water temperature, fuel, and battery gauges
• B. Brake, tire pressure, fuel, and speedometer
• C. Oil, altimeter, water temperature, and fuel gauges
• D. Speedometer, oil, temperature, and air pressure gauges

Answer: (A)

When you first start the engine, you want to verify the engine’s vital signs: oil pressure, coolant temperature, fuel level, and charging status. The oil pressure gauge shows whether lubrication is being supplied to moving parts; if it stays low or doesn’t rise quickly, the engine could be damaged. The water temperature gauge tells you if the coolingsystem is keeping the engine from overheating; a temperature spike or abnormal reading points to cooling problems. The fuel gauge tells you there’s enough fuel to run, preventing an unexpected stall. The battery gauge (charging status) indicates whether the alternator is keeping the battery charged; if charging is failing, electrical systems and the engine could fail soon after. Together, these gauges give a quick check that the engine is being lubricated, cooled, fueled, and properly charged right at startup.

Other gauges like brake, tire pressure, speedometer, or air pressure pertain more to road readiness or safety, not the immediate engine health right after starting.