EXERCISES. 1. Translate the words into English

1. Translate the words into English.

Комбайн, жатка, мотовило, решето, вал, дека, подшипник, стрясная доска, режущий аппарат, механизм управления.

2. State the Infinitive function in the following statements.

1. It helps to find out the content and amount of servicing and maintenance.

2. To eliminate all these faults you should use the following remedies.

3. To put the header into the working order is necessary to improve the distortion of it.

4. To avoid carcass distortion use the hydra cylinder.

5. Use clamps to fix the concave and restore the form of the plates and shafts.

6. Heat the crankshaft to restore the initial form.

3. Find the sentences with Modal Verbs in the text. State their meaning.

4. Use the sentences in the Passive Voice.

1. Testing procedures help to check the combine harvester's technical state.

2. To put the header in the working order is necessary to improve the distortion.

3. Change the damaged segments of the knife to improve the knives.

5. Insert the words.

1. To put...in working order is necessary to improve the distortion of it.

2. The...damages result in the low quality of cutting.

3. To avoid carcass distortion use...with the lever.

4. Examine...carefully, and define the length of the chains.

5. To eliminate...faults you should dismantle it and replace the worn bearings and the shaft.

6. Use clamps to fix...and restore the form of the plates.

7. The quality of repair depends on the right assembly of...,the reducer, and...

6. Find the synonyms and antonyms.

To mount, to eliminate, to restore, to dismantle, to set, to assemble, to improve, attachment, to repair, fitting.

7. Answer the questions.

1. What faults can be detected by means of the testing procedures?

2. Why is it necessary to detect these faults?

3. What are the main parts of a combine harvester?

4. What does it mean: «distortion, damage, fracture»?

5. What do you do in the case of the header fault?

6. Is it necessary to dismantle it?

7. What do cutting bar damages result in?

8. How can we eliminate an elevator fault?

9. Why is it necessary to dismantle the beater in case of a fault?

10. What are your actions in the case of a straw-walker fault?

11. How can we repair the crankshaft?

12. What does the quality of repair depend upon?

13. What should we do to provide the efficient operation of a combine harvester?

7. Read the dialogue between a son, who is a student and his father, a combine-driver.

- I have to prepare a report about agricultural machines.

- Fine! You can prepare a report about a combine.

- A combine? But I know nothing about it.

- I'll help you. Look here. It is a self-propelled and very powerful machine.

- But what work does it perform?

- Don't be in a hurry. You can't speak about its functions without knowing its construction. We may define the cutting, threshing, separating, and cleaning units.

- Well, I saw the combine operation but I can't imagine that it is so complicated.

- Threshing takes place between the cylinder and the concave. This distance is controlled and it depends on the crop. At the concaves the grain is separated from the straw. Also, the grain, which is mixed with the straw mass, is separated by means of the straw-walker and sieves. Then the grain falls into the grain pan under the concave, and is directed to the grain tank, and so on.

- Well, I suppose that a driver must take care of all mechanisms.

- Sure. As for me I have had all kinds of damages and fractures of the header, connecting rods, cutter bar, gears, and shafts, and wear of the axles, chains, straw-walkers, and elevator is not a rare case for me. All these damages result in bad operation.

- Oh, dear, a good maintenance and regular testing procedure will help to keep the machine in a good working order.

9. Dramatize the dialogue in pairs.

10. Suppose you visit an exhibition of agricultural machines. You want to choose the most efficient combine harvester. Use these technical specifications and discuss advantages and disadvantages of the following machine.

With a DON-1500 self-propelled harvester you'll have neither problems nor losses of cereal, bean and industrial crops, owing to direct combining and windrowing.

The DON-1500 is a new level of engineering art. The harvester is an embodiment of all the latest achievements in the world technology of harvester building.

The machine is provided with:

6 m, 7 m and 8.6 m - wide cutter bar;

straw and chaff collector;

hood¹ for windrowing of straw and chaff;

grain minces delivering the bulk into carts or spreading it in the field.

Principal Technical Features

Output, t/h 11.5 - 13.3

Engine capacity, kW 162

Mass of harvester, kg 13,440

Width of thresher, mm 1,500

Width of cut, m 6,7; 8.6

Speed, km/h up to 20

NOTES

¹hood - кожух

11. Make up a dialogue using this situation.

Your combine harvester doesn't work. Consult your friend (partner) about it. The problem is: the grain can't be separated from the straw mass. Find a way to eliminate this trouble.

12. Read and translate the texts in written form.

Date: 2015-10-18; view: 368; Нарушение авторских прав