机务英语口语交流大全

CONTENT

Lesson One Air Conditioning P. 1 Lesson Two Auto Flight P.6 Lesson Three Air Source P. 10 Lesson Four CommunicationP. 14 Lesson Five APU P. 18 Lesson Six Fire Protection P. 22 Lesson Seven Engine Ignition P. 26 Lesson Eight Oil P. 30Lesson Nine Flight Control P. 34 Lesson Ten Centre Maintenance System P. 37 Lesson Eleven Air Conditioning Lay Out P.43 Lesson Twelve Navigation P. 49 Lesson Thirteen Auto Flight P. 53 Lesson Fourteen Hydraulic System P. 58 LessonFifteen Electrical Power P. 63 Lesson Sixteen Navigation P. 67 Lesson Seventeen Fuel P. 71 Lesson Eighteen CentreMaintenance System P. 77 Lesson Nineteen Oil P. 81 Lesson Twenty Flight Control P. 84Lesson One

Air conditioning System

Part one: Read the following passage and memory as much as you can, and then describe the diagram below with your ownwords.

The air conditioning system supplies pressurization to the whole passenger compartment, the cockpit, all the cargocompartments and the avionic compartment.

There are areas in the fuselage that are not pressurized and they are separated by pressure bulkheads.Areas that are not pressurized are the landing gear bays, the radome and the tail cone.Exercises: 1

Questions to the Text:

1. Where is pressurized by the air conditioning system?2. Are there any un-pressurized areas? What are they?3. Radom is pressurized, isn’t it?Exercises 2:

Describe Fig.1 with what you have learned in the text. Speak as much as possible with your own words.Fig. 1

Fig.1 Air conditioning system

Part Two: R ead the following passage and memory as much as you can, and then describe the diagram below with yourown words.

Electricity is mainly used for electrical heating, for lighting, to produce mechanical power, and last but not least to supply allthe electronic devices.

Electrical power for heating is mainly used in the galleys for ovens and coffee machines. It is also used in anti ice systems toprevent icing of air data probes, water systems and cockpit windows.

Lighting equipment is mainly used in the cockpit to provide sufficient general brightness and to illuminate the working areaslike panels and maps and in the cabin for passenger comfort and safety and outside the aircraft to make the aircraft visible forother aircraft and to illuminate the ground during takeoff and landing.

Mechanical power is produced by electric motors, which are mainly used to drive pumps, for example, fuel and hydraulicpumps or to drive a valve to the commanded position in the fuel, hydraulic or air conditioning system or to move mechanicalparts like doors and cargo containers.

Electronic devices that are used in nearly all aircraft systems are the computers for system control and monitoring and thecontrol inputs and indications in the cockpit and sensors throughout the whole aircraft.Exercise 1:

Questions to the Text:

1. What is electrical power used for?

2. Were does the heating for oven and coffee machines come from?3. what is lighting equipment used for?

4. Are there any lighting equipment outside the aircraft?5. What are the purpose for the lights outside the aircraft?6. How is the valve controlled?

7. Electronic devices are used to control various systems, aren’t they?Exercises 2:

Describe Fig.2 with what you have learned in the text. Speak as much as possible with your own words.

Fig. 2 Electrical PowerLesson TwoAuto Flight

Part One: Read the following passage and memory as much as you can, and then describe the diagram below with your ownwords.

The aircraft has three axes. They are called:---the longitudinal or x--axis---and the lateral or y—axis---the vertical or z--axis

The Autopilot controls the aircraft attitude directly around 2 axes, by elevator deflections from the pitch channel and ailerondeflections from the roll channel .

Autoland Autopilots can also control the aircraft attitude directly around the vertical axis by rudder deflections from the yawchannel.

The Yaw damper controls the rudder to dampen dutch roll oscillations (swings) during the entire flight.

The pitch trim system moves the horizontal stabilizer, to compensate for changes in the center of gravity and center of liftduring flight.

Autothrottle is the only system that can control an aircraft motion along an axis, called a translatory motion. It generatesaccelerations in the x--axis by controlling the engine thrust.Exercise 1:

Questions to the Text:

1. How many axes does an aircraft move along?2. What is the function of the Yaw Damper?3. What is the function of the Pitchtrim?4. How does an aircraft accelerate?

5. How is vertical movement of an aircraft achieved?Exercise 2:

Describe Fig.3 with what you have learned in the text. Speak as much as possible with your own words.

Fig. 3 Axes of An AircraftFig. 3 Pitch Yaw and Roll

Part Two: Read the following passage and memory as much as you can, and then describe the diagram below with your ownwords.

All modern aircraft are equipped with autoflight systems.Typically, an autoflight system has the following subsystems:-- the Autopilot, or AP in short-- the Flight Director, or FD

-- the Autothrottle System, usually abbreviated as ATS-- the Automatic Pitch Trim System, also called Autotrim-- and the Yaw Damper System, or YD

The Flight Director shows the pilot how to fly the aircraft manually. This is done by Flight Director Command bars in thePrimary Flight Display -- PFD or Attitude Director Indicator--ADI.

The Autothrottle System reduces the workload for the pilots by controlling the engine power automatically.

Autotrim maintains pitch stability during all phases of the flight. It usually adjusts the horizontal stabilizer automatically.The Yaw Damper improves the dynamic stability of the aircraft during the whole flight.The FMS does navigation and performance calculations for optimum flight performance.Exercise 1:

Questions to the text:

1. How many subsystems does autoflight consist of?2. What does flight director show?3. What is the function of Autothrottle?4. What is autotrim used for?

5. Which subsystem can improve the aircraft dynamic stability?6. what does FMC stand for?Exercise 2:

Describe Fig.4 with what you have learned in the text. Speak as much as possible with your own words.Flight Director

Flight director AutothrottleAutopilot

Autotrim Yaw DamperFig. 4 Autoflight SystemLesson ThreeAir Source

Part one: Read the following passage and memory as much as you can, and then describe the diagram below with your ownwords.

On aircraft pneumatic energy is used for engine starting, cabin pressurization and air conditioning, wing anti--icing, water

reservoir pressurization and hydraulic reservoir pressurization on some aircraft.

You may find other systems and components that also work pneumatically, for instance, air--driven pumps for hydraulics orair motors used for slat operation. In any pneumatic systems, air pressure and temperature need to be as constantas possible to support the different consumers effectively.Exercise 1:

Questions to the text:

1. What is the function of aircraft pneumatic system?2. why constant air pressure and temperature are needed?3. Does air-driven work pneumatically or hydraulically?

4. Air motors are used for hydraulic system operation, aren’t they?Exercise 2:

Describe Fig.5 with what you have learned in the text. Speak as much as possible with your own words.