ASE test prep questions & answers 2024/2025

ASE test prep questions & answers 2024/2025 Technician A says that when pressure testing a radiator cap, a special adapter is needed. Technician B says the best way to check thermostat operation is while it is in the engine. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - ANSWERSThe correct answer is A. Test the radiator cap with the cooling system tester's radiator cap adapter. The thermostat can most effectively be rested by removing it from the vehicle, and submerging it in coolant heater about l 5°]: (8°C) above the normal thermostat opening temperature. 2. A technician Is checking resistance In an engine's spark plug wires using an ohmmeter. A general rule Is to replace a wire if resistance is over: A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - ANSWERS2. The correct answer is B. A general rule is to replace the wire if the resistance is over 30,000 ohms. The resistance of suspect wires can be checked using an ohmmeter. To check resistance, disconnect the spark plug end and coil end of one spark plug wire. Connect an ohmmeter lead to each end of the spark plug wire's terminals. 3. Technician A says that in an ignition system, the voltage supplied to the coil during starting is battery voltage. Technician B says the coil uses electromagnetic induction to create high voltage. Who is right? A. Technician A only B. Technician B only