What’s the type of the control system on CFM56-3 engine? ( )
A: pneumatic mechanical system
B: EEC system
C: FADEC system
D: hydro-mechanical system
A: pneumatic mechanical system
B: EEC system
C: FADEC system
D: hydro-mechanical system
举一反三
- It consists of mechanical system, hydraulic system, electrical system and electronic control system, all working together in perfect harmony．
- What does the autopilot system include?? Hydraulic system|Mechanical system|Electrical system|All of above
- What’s the principal part for the robot to complete the task? ( ) A: The control system B: The executor C: The drive system D: The sensing system
- The fuel oil system in the ship's engine room is not included . A: Fuel purifying system B: Fuel transfer system C: Fuel supply system D: Fuel cooling system
- Which of the following expressions is not correct (不正确)? A: If a system is only acted by conservative forces （保守力）, the mechanical energy（机械能）must be conserved （守恒）. B: If net external force is zero then the linear momentum of the system must be conserved. C: If net external force is zero, then the mechanical energy of a system must be conserved. D: If net external force is zero, then the mechanical energy of a system may not be conserved.