Which action is performed during cooling system inspection?

• A. Inspect and pressure test cooling system components
• B. Change brake fluid
• C. Inspect exhaust manifold
• D. Check battery charge

Answer: (A)

Cooling system inspection focuses on verifying that the cooling loop is intact and can hold pressure. You visually inspect hoses, clamps, radiator, water pump, thermostat housing, the radiator cap, and the overflow reservoir for cracks, swelling, or leaks, and you perform a pressure test with a cooling-system tester to ensure the system maintains the proper pressure without leaking. This approach helps detect hidden leaks and failing components like hoses, the radiator cap, or the pump so overheating can be prevented. The other tasks fall outside the cooling system: changing brake fluid is a brake system maintenance task, inspecting the exhaust manifold relates to the exhaust/engine area, and checking battery charge is part of the electrical system.