Question

Book name = SCIENCE FACT FILE 1
Class name = 06

Q:1) Why are cylinders of oxygen used
a) in hospitals ?
b) by welders ?

plz tell the correct answer
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Answer 1

Answer:

Pure oxygen, instead of air, is used to increase the flame temperature to allow localized melting of the work piece material (e.g. steel) in a room environment. ..

Answer 2

Explanation:

A : An Oxygen Cylinder is a storage vessel where oxygen is held under pressure. Oxygen cylinders are a crucial part of a clinical setup as oxygen therapy may be used in emergency rooms, surgical procedures or for patients who require oxygen on a long-term basis for their medical condition.

B: Process features. Oxyacetylene welding, commonly referred to as gas welding, is a process which relies on combustion of oxygen and acetylene. When mixed together in correct proportions within a hand-held torch or blowpipe, a relatively hot flame is produced with a temperature of about 3,200 deg. C.

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