Судовые механики. Базовая лексика.
Шрифт:
Oil Mist Detector Part 4:
low explosion limit
per liter of air – на литр воды
supply air – приточный воздух
through – через
calibrated orifice –
Put words in gaps:
1. Very cold ………..can cause frost formation in the heat exchanger, which can damage it.
2.The concentration of oil is at a …………………
3. We do this ………… several programs.
4. From filters air goes to……………………..
5. Radon is measured in picocuries ……………….. (pCi/L), an indicator of radioactivity.
Read the text and do exercises:
If there are 5 percent of low explosion limit (2,5 mg per liter of air), oil mist alarm high activates.
Air filters are very important. Air must be very fresh not to activate alarms. Supply air goes through filters to calibrated orifice and then to measuring head.
Write words in the gaps:
If there are 5 percent of low …………….. limit (2,5 mg …… liter of air), oil mist alarm high activates.
Air filters are very important. Air must be very fresh not to activate alarms. Supply ……… goes through filters to ………………. orifice and then to measuring head.
Write sentences in the correct order:
Supply air goes through filters to calibrated orifice and then to measuring head.
Air must be very fresh not to activate alarms.
Air filters are very important.
If there are 5 percent of low explosion limit (2,5 mg per liter of air), oil mist alarm high activates.
…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
Answer the questions:
How to determine oil mist opacity?
What is ejector for?
Shock absorbers.What are they for?
What happens with the infrared led beam inside of the oil mist detector?
What is the dangerous concentration of oil in the mist?
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