Final answer:
During a walk-around inspection, a bus operator can check the left front tire pressure, engine oil level, and brake fluid level on the front side of the bus.
Step-by-step explanation:
During a walk-around inspection, a bus operator can check multiple components on the front side of the bus.
Components that can be checked include:
Left front tire pressure: The bus operator can visually inspect the left front tire and check its pressure using a tire gauge.
Engine oil level: The bus operator can open the hood and check the engine oil level using the dipstick.
Brake fluid level: The bus operator can locate the brake fluid reservoir and check the level visually.
The left front fuel tank is not typically located on the front side of the bus, so it cannot be checked during a walk-around inspection.