DMV Test Firefighter Endorsement Practice Exam 2025 - Free Firefighter Endorsement Practice Questions and Study Guide

The hydraulic brake system should indeed be tested while the vehicle is stopped because it involves checking the functionality and responsiveness of the brakes, crucial for safety. A critical aspect of this test is to ensure that the brake pedal feels firm and does not sink to the floor when pressure is applied, indicating healthy brake fluid levels and good operation of the components. Testing the brakes while the vehicle is stationary reduces the risk of accidents and allows for a thorough evaluation before driving.

In contrast, checking items like engine oil and tire pressure can also be done with the vehicle stopped, but they involve different protocols. Engine oil is typically assessed through the dipstick, and tire pressure requires a gauge but is often better evaluated when the tires have not been driven recently, to get an accurate reading, making it misleading to consider them primarily for this context.

Windshield wipers are generally tested while the vehicle is in motion to ensure they function correctly during actual driving conditions. However, their operation can also be assessed while stationary, focusing more on the condition of the blades rather than their performance on a wet windshield.