Quizzes & Puzzles1 min ago
Tyre Inflators
Why do tyre inflators have a setting for flat tyres. Yesterday I had a flat tyre to inflate and since I was there I decided to do all the other tyres. So I set the pressure to the correct setting and did the other tyres. Then I went to the flat tyre and it wouldn't do anything. Setting it to 'flat' let me inflate it OK. How does that work ? Is it that the 'back pressure' allows it to gauge the pressure or is it that the valve doesn't shut unless there is pressure is in the tyre ?
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Mal
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Mal
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