Front

What is the primary purpose of using a flux when brazing with an oxyacetylene torch?

Back

To prevent oxidation of the metal surfaces.

Front

What type of flame should be used in brazing with an oxyacetylene torch?

Back

Oxidizing flame.

Front

How should you check for a leak on an oxyfuel outfit?

Back

By using soapy water.

Front

What is the safest way to light an oxyacetylene torch?

Back

Torch lighter.

Front

What is the maximum pressure that should not be exceeded in acetylene lines?

Back

1 pound per square inch.

Front

Define brazing in welding techniques.

Back

Brazing is a metal-joining process that involves melting and flowing a filler metal into the joint between two or more close-fitting parts.

Front

What is the difference between brazing and welding?

Back

Brazing uses a filler metal with a melting point above 450°C, while welding involves melting the base metals.

Front

What is an oxyacetylene torch used for?

Back

An oxyacetylene torch is used for welding and cutting metals by producing a high-temperature flame.

Front

What safety equipment is essential when using an oxyacetylene torch?

Back

Safety goggles, gloves, and a fire-resistant apron.

Front

What is the role of oxygen in an oxyacetylene flame?

Back

Oxygen supports combustion and increases the flame temperature.