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Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695

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Welding: Principles and Applicatio...

8th Edition
Larry Jeffus
ISBN: 9781305494695
Textbook Problem
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Approximately how long would it take a 50/50 mixture of oxygen and acetylene to flash back through a 21-ft-(7.62-m) long hose?

To determine

The time required to flash back through a 21ft long hose.

Explanation

Given information:

Length of hose pipe is 7.62m.

Write the expression for the velocity.

  V=Lt...... (I)

Here, length of hose is L and time is t.

Calculation:

Refer to table 314, "Fuel gas and oxygen mixture burn rates" to obtain the value of burning velocity of oxygen and acetylene as 22.7ft/s.

Substitute 22.7ft/s for V and 21ft for L in equation (I)

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