I Listen and repeat the pronunciation of the words. Find the sentences with

The words in the text. In small groups, discuss the meanings of the words

And give the Kazakh or Russian equivalents.

1 pole

2 fine-tuning

3 pneumatic power

4 mount

5 gearbox

6 variable-speed

7 constant-speed

8 variable-displacement

9 hydraulic pump

10 constant-displacement

11 charge pump

12 replenishing pump

13 scavenge pump

14 limit governor

15 basic governor

16 pump wobbler

17 the pump section

18 stationary shell

19 an inner race

20 the wobbler shell

21 bearing rollers

22 overdrive phase

23 straight-through phase

24 underdrive phase

25 the input and output rpm

26 wobbler pump

27 the rotary motion

28 torque

29 the reverse pumping action

30 overspeed

31 an underspeed condition

32 lubricating system

II Scan the text to finish the sentences.

1 Because of the fixed number of poles, the only means of fine-tuning the output frequency is controlling rotor rpm, ……………………………………………..

2 CSDs receive ………………………………………………………………...

3 On helicopters, the main generators are mounted …………………………...

4 The purpose of the CSD is ……………………………………………….…..

5The CSD consists of …………………………………………….....................

6The governing system controls ……………………………………………….

7There are several other components in the …………………………………….

8 Among these components are three output-driven gear pumps: ……………..

9A gear on the CSD output shaft drives ……………………………………….

10The pump wobbler and the pump section of the cylinder block assembly form …………………………………………………………………………………...

 

III Skim the text with your partner to match the clauses together to make