Electrical System

Voltage. Direct current and alternating current voltages are measured and shown by AC and DC voltmeters. Where information is required only periodically from a number of points it is usual to have only one voltmeter with a device for selecting each point of measurement as required.

Current. The instrument that measures an electric current in amperes is called an ammeter.

We may summarize the nature of information presented by aicraft instruments as

follows:

(a) it may be continuous presentation, as in the case of a gyrohorizon.

(b) it may be on-tap presentation, as in the case of moving a switch for a

particular reading on a voltmeter.

(c) it is always concerned with situations that are expected to change within

certain limits, for example temperature.

(d) most is presented visually.

Active Vocabulary to Text B

propulsion - двигатель
revolutions per minute - обороты в минуту
gauge - измерительный приброр
fuel flow - расход топлива
airframe - корпус, каркас
consumption - потребление
current - ток
to exert - влиять
to moove a switch - переключять
to concern with - описывать
neither … nor... - ни... ни...

Questions to Text B

1. What are the instruments concerned with propulsion information?

2. What's the difference between fuel content and fuel flow?

3. What are the instruments concerned with information about conditions on the outside of the airframe?

4. Why do we need the instruments concerned with information about conditions on the outside of the airframe?

5. Where is the information required only periodically?

6. What is an ammeter?

7. To how many points may we summarize the nature of information presented by aicraft instruments?

8. May it be continuous presentation or on-tap presentation?

9. Are there instruments concerned with situations that are expected to change?

10. What is presented visually?

Airport INFRASTRUCTURE

Active Vocabulary to Text A

terminal area - зона аэродрома
apron - приангарная площадка
taxiway - рулёжная дорожка
approach - заход на посадку
carousel - круговой транспортёр для багажа в аэропорту
maintenance - содержание и технический ремонт
to arrange - располагать
to relate to - затрагивать
infinite - бесконечный
prior - предшествующий

Text A


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