Meaing of blue collar worker

[ajathsatru]

Test No. incompl/advan-1 "Code of Practice", question 5

Job losses are mainly in the ......... sectors of the industry.

(a) blue-collar
(b) red-collar
(c) stiff-collar
(d) high-collar

Test No. incompl/advan-1 "Code of Practice", answer 5

Job losses are mainly in the blue-collar sectors of the industry.

Correct answer: (a) blue-collar

Your answer was: correct
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what does a blue-collar mean ?

[sylphidae]

I guess it means people who do physical or unskilled work, say for example in a factory.
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Last night I was looking up at the stars and I was wondering, where the heck is my ceiling?

[Torsten]

Sylphidae is right as Alan's answer shows:
http://www.english-test.net/forum/ftopic79.html#147
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