3. Arrange the following words in the pairs of synonyms.

   	to use		main
   	to make		member
   	to shut		to utilize
   	top end		to close
   	part		upper end
   	whole		entire
   	principal		to produce
   	cap		cover

4. Match the following English and Russian phrases.

   	a stress carrying member		деталь, служащая проводником тепла
   	outer part		выполнять важные задачи
   	carefully finished		тщательно обработанный
   	perfect roundness		деталь, испытывающая напряжение, нагрузку
   	cooling water		внешняя часть
   	uniform diameter		залитые баббитом вкладыши
   	cast iron structure		охлаждающая вода
   	to perform important duties		одинаковый диаметр
   	inner part		чугунная конструкция
   	babbit-lined shells		идеально круглая форма
   	heat conducting member		внутренняя часть

5. Supply the missing prepositions.

1. The frame is provided ……. openings - the top to receive the cylinders.

2. The cylinder consists ……. two separate parts.

3. The space between the outer and the inner parts of the cylinder is utilized ……. circulating cooling water.

4. The cylinder carries the stress produced ……. the gas pressure.

5. The cylinder head closes the top end ……. the cylinder.

6. Babbit-lined shells are made ……. steel.

7. The main bearings are accommodated ……. the seats of the bedplate.

6. Translate the sentences paying attention to Participles.

1. When replacing oil carefully clean the tank.

2. Being equipped with a powerful engine, the ship attained the speed of 17 knots.

3. Having been tested, the engine was installed in the vessel.

4. The engine being remotely controlled from the bridge is very powerful.

5. Designed and equipped for operation on boiler oil, the engine has all cylinder liners chrome-hardened.

6. Having installed powerful dredging pumps, they increased the capacity of the dredger.

7. The engine being repaired by our mechanic will be put into operation in two weeks.

8. The piston having descended to the bottom of its stroke, the inlet valve closes.

7. Answer the questions.

1. What are the major fixed parts of a diesel engine?

2. What important duties does the bedplate of an engine have to perform?

3. What does the frame rest on?

4. What for is the frame provided with openings?

5. What parts does the cylinder consist of and how are they called?

6. What is the function of cooling water circulating in the space between these two parts?

7. Why must the cylinder be strong?

8. Why is the cylinder head one of the most important parts of the engine?

9. Where are the main bearings accommodated? What are the principal parts of a bearing?

Unit 4 Essential Parts of a Diesel Engine Major Running Parts