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IX. Connect the sentences according to the contents.

1. The stationary tower is a a) and then assembled again at a new site

metal framework

2. The first group includes cranes b) which revolves with the tower

with the revolving head and the

counterweight

3. All mechanisms of the crane c) which consists of several sections

are mounted on the turntable

4. For the transportation the crane d) which are mounted at the top

is split into separate large units

X. Translate into Russian paying attention to the Infinitive.

1. It is interesting to note that the turntable of the crane may revolve with the tower.

2. The counterweight is mounted to compensate for the weight of the boom and part of the load being lifted by the crane.

3. Tower cranes are used not only to lift materials but also to install separate elements.

4. The rotating upper frame of the crane is used to carry the power plant and operating machinery.

5. The body is designed not only to contain and protect the engine and other car components but it also protects people riding in the car.

XI. Insert the verbs in the proper form. Translate the sentences.

1.Tower cranes … for loading and unloading operations.

2. Tower cranes … parts of the building and whole structures.

3. Tower cranes … separate elements.

4. A tower crane … of a support, a tower, a revolving structure, a counterweight, a boom and controls.

5. The support … the traveling mechanisms.

6. The tower … the operator`s cab.

7. The tower … as a lattices steel framework.

XII. Fill in the prepositions. Translate the sentences into Russian.

1. The rigid support is made … the form … a gantry … traveling wheels.

2. The operator`s cab is built … the middle … the tower.

3. …the transportation the crane is split … separate large units.

4. The crane split … separate units is then assembled … a new site.

5. The counterweight is mounted to compensate … the weight … the boom and part … the weight … the load.

5. The counterweight may be mounted … the top or … the bottom.

6. The load is lifted … the crane.

7. Cranes are classified … two main groups … the design … the tower.

XIII. Make up questions with words given below using the models. Answer them.

Models: 1. What does a tower crane consist of ?

the operating equipment

the stationary tower

tractors

automobiles

2. How are tower cranes classified ?

tractors

winches

jacks

XIV. Answer the following questions using the introductory phrases.

1.What cranes are extensively used in construction ?

2. What are tower cranes used for ?

3. How are tower cranes classified ?

4. What is the load moment ?

5. What does a tower crane consist of ?

6. What does the operating equipment consist of ?

7. Into how many groups are cranes classified according to the design of the tower?

8. What cranes does the first group include ?

9. What cranes does the second group include ?

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