Английский язык. Судовые механики. Базовая лексика

c.notches

Look at the ………. on the flask.

a.notches

b.samples

c.bacteria

A lot of sludge means few bacteria, add more bacteria.

Little sludge means a lot of bacteria, add bacteria …………….

a.sludge

b.rarely

c.means

Put sentences in correct order:

A lot of sludge means few bacteria, add more bacteria.

sample cock – the valve for taking samples

Little sludge means a lot of bacteria, add bacteria rarely.

Give time to settle.

Sludge test is made in the special triangular flask.

Look at the notches on the flask.

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………..

Sewage Part 6

are added – добавляются

top point of the system – верхняя точка системы

clean all pipes – очистить все трубы

once a month – раз в месяц

clean water inlet – вход чистой воды

Put words in gaps:

1. Materials ……………….as they are prepared.

2. This involves used high-pressured water to unclog and…………………

3. A check will be performed ………………………

4. Bacteria are added at the………………………….

5. Clean sewage treatment plant once a month with the………………………

Read the text and do exercises:

Bacteria are added at the top point of the system, so they can clean all pipes and the system.

Clean sewage treatment plant once a month with the clean water inlet.

Put missing words in the gaps:

once a month clean all pipes top point of the system

Bacteria are added at the……………………., so they can …………………and the system.

Clean sewage treatment plant ………………… with the clean water inlet.

Put words in correct order to make sentences:

of the system Bacteria top point are added at the, pipes can all so they and the clean system.

…………………………………………………………………………………………………………………………………………………………………………………………………………………………

sewage clean treatment a month Clean with the water plant once inlet.

…………………………………………………………………………………………………………

Answer the questions:

How many tanks are in the sewage treatment plant?

What is barbotage?

Why do bacteria need air?

Why do we add bacteria at the top point of the system?

When do we need to add running water?

How do you perform a sludge test?

Oil mist detector