IX. Translate the following sentences into Russian paying attention to the

Infinitive, the Complex Subject and the Complex Object.

1. We know conveyors to be of different types.

2. Ordinary rubber belts are known to be used for temperatures from +50 to – 15 degrees.

3. The number of plies must be enough to endure the maximum tension in the belt when it runs onto the drive drum.

4. Belt conveyors are known to be widely used in construction.

5. The basic elements of a belt conveyor are considered to be a belt, a head and return drive, a frame, and sets of rollers.

6. We know bucket conveyors to be vertical and inclined.

7. Elevating graders are known to be used for erecting fills for roadbeds constructed in a level country.

X. Insert the verbs in the proper forms. Translate the sentences into Russian.

1.Belts of the conveyor … at a speed of 1.5 – 5 m/sec.

2. The belt … the material on its upper surface.

3. Screw conveyors … cement, gravel, slag, concrete, wet clay, etc.

4. In inclined conveyors the chain … on the frame.

5. A fast-moving chain … round a sprocket.

6. The buckets … on a rubber belt for handling light materials or chains for heavier loads.

7. The number of plies … the belt strength which must be strong enough.

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

1.A discharge chute and a head drive are arranged … the top of the conveyor.

2. A return drive and a feed chute are arranged … the bottom of the conveyor.

3. In inclined conveyors the chain runs … rollers fixed … the frame.

4. The width … the belt is selected … conformity … the amount … load it has to handle.

5. The belt consists … plies … rubberized cotton cemented together … rubber linings.

6. Ordinary rubber belts are used … temperatures + 50 … - 50 degrees.

XII. Make up questions with the given terms using the model.

Models: 1. What types of conveyors are there?

cranes

jacks

winches

hoists

2. What are the basic elements of a belt conveyor?

an operating equipment

a car

a tractor

a truck

a crawler-mounted running gear

XIII. Express your agreement or disagreement with following statements.

Use the expressions “I think so”, “You are right”, “I don`t think so”.

Example: 1. Belt conveyors are widely used in construction work, am I right?

I think so, because they are really widely used in construction work.

2. At the bottom of the conveyor there is a head drive, am I right?

I don`t think so, because at the bottom of the conveyor there is a

a return drive.

1. As far as I know there are different kinds of conveyors: belt conveyors, bucket conveyors, screw conveyors, vibration conveyors, etc.

2. Ordinary rubber belts are used for temperatures from +100 to – 100 degrees.

3. As far as I remember there are heat-resistant and special high-strength belts.

4. Bucket conveyors carry the material in belts.

5. It is said that belts move at a speed of 1.5 – 5 m/sec.

6. At the top of the conveyor there is a head drive, am I right?

7. It is known that bucket conveyors are employed to handle cement, gravel, slag, concrete and other loose and viscous materials.