What do you check for in the bus's fluid levels during inspection?

During the pre-trip inspection of a bus, it is essential to check multiple fluid levels to ensure the vehicle operates safely and efficiently. The correct choice highlights the importance of monitoring engine oil, transmission fluid, brake fluid, and windshield washer fluid.

Engine oil is crucial for the lubrication and protection of the engine components, ensuring proper functioning and reducing wear. Transmission fluid serves to cool and lubricate the transmission system, which is vital for smooth gear shifting and overall vehicle performance. Brake fluid is essential for the braking system; it transfers force from the brake pedal to the brake components and must be at the proper level to ensure effective stopping power. Lastly, windshield washer fluid is critical for maintaining visibility while driving, especially in adverse weather conditions.

By checking all these fluid levels, you can identify any potential issues that may affect safety or performance before starting the journey, thus minimizing the risks associated with running a bus that may not be fully operational or safe.