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I. Match English and Russian word combinations.

1. longitudinal concrete beam

a. шпалы лестничного типа

2. transverse steel plate

b. участок с тяжелыми рельсами

3. ladder sleepers

c. продольная бетонная балка

4. to test in service

d. противостоять удару

5. drop-weight impact test

e. вибрация, возникающая у основания

6. heavy rail section

f. поперечная стальная плита

7. ground-borne vibration

g. испытание на удар опусканием нагрузки

8. to withstand impact

h. проверять в работе

9. resilient wheel

i. прогиб пути

10. track buckling

j. упругое колесо

II. Choose the correct word in b and put it into the gap in a.

A

B

1. The sleeper and rail act together as a composite _____.

a. noise

2. Ladder sleepers reduce _____ and ground-borne vibration.

b. resistant

3. Ladder sleepers can enhance safety under conditions where the _____ has partially collapsed.

c. beam

4. Because of the configuration, ladder sleepers are highly ____ to track buckling in hot weather.

d. creep

5. These sleepers do not offer the same resistance to longitudinal _____ as transverse sleepers.

e. subgrade

III. Make up sentences choosing the correct information to characterize ladder sleepers. Ladder sleepers perform well in tests because they showed

a) big reduction in track maintenance costs;

b) the pressure gradient was not smooth;

c) the effect of a bogie exerting static wheel load;

d) the rail and sleeper were in occasional contact;

e) the settlement rates were 8 times lower;

f) reduction of noise and ground-borne vibration.

IV. Match these definitions with the words.

1. Sleepers which are manufactured as two longitudinal concrete beams joined by transverse steel pipes.

a. transverse

2. Tests which simulate the effect of wheel flats.

b. Railway Technical Research

3. Sleepers which offer the resistance to longitudinal creep

c. ladder

4. Institute which examined the reasons for the failure of longitudinal sleepers

d. drop-weight impact

V. Decide if the sentences are true (t) or false (f).

    1. The standard distance between two transverse pipes is 3.6 m.

2. Ladder sleepers were installed experimentally on JR Freight line.

3. Ladder sleepers can’t enhance safety.

4. Leading tests showed that the settlement rates are 8 times lower under ladder sleepers than for conventional sleepers.

5. The basic principle of placing parallel pairs of sleepers directly beneath the rails was sound.

Unit 5

You are going to read a text. First read the openings of some paragraphs.

  1. The first essential is a thorough traffic survey…

  2. The next step is to ascertain with the aid of barometric levels the altitudes of the saddles…

  3. The preliminary survey work is especially important in really difficult country…

  4. Having done the preliminary works, the builders are engaged with subgrade and culverts construction…

  5. To keep the railroad in good operation and meet the standard requirements of safety…

Guess how the paragraphs will continue.

What information does the text contain?

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