Air cocks， usually positioned at the （） in a circulating system， is used to get rid of the air in the system.
举一反三
- The starting air system usually has （） to prevent starting if anything is not in order. A: drain cocks B: vent valves C: counteracts D: interlock
- The starting air system usually has （） to prevent starting if anything is not in order.
- ______ is mainly used in light aircraft and only used for emergency on many large aircraft, and its operation medium is ______. A: starting system, oil B: hydraulic system, compressed air C: elevator, hydraulic fluid D: pneumatic system, compressed air
- _____is not included in the system to be prepared when the main engine is preparing for the vehicle. A: Power system B: Lubricating oil system C: Compressed air system D: Air conditioning system
- The starting air system usually has （） to prevent starting if anything is not in order. A: stop valves B: interlocks C: non-return valves D: air vent