Air, Exhaust, and Electrics

• Explain air supply, exhaust restrictions, batteries, starter circuits, alternator charging, and warning lights.
• Apply air system to a realistic onboard situation.
• Recall the core check: air intake must be clear.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.