How is the Venturi effect used in welding torches?

In what type of torch is a Venturi effect used to pull in acetylene?

A. Balance pressure torch
B. Electrode holder
C. Injector torch
D. TIG torch

Answer:

In the injector torch, the Venturi effect is used to draw in acetylene.

In welding, the term “torch” refers to a tool that is used to direct a flame onto a workpiece. The oxygen-acetylene torch is a common type of welding torch. The oxy-acetylene torch is a type of welding torch that uses a mixture of oxygen and acetylene to produce a flame. Acetylene is used as a fuel gas in oxy-acetylene welding because it burns hotter than any other fuel gas. The oxygen is used to support the combustion of acetylene.

The injector torch is a type of welding torch that uses the Venturi effect to draw in acetylene. The Venturi effect is a phenomenon in fluid dynamics that occurs when a fluid flows through a narrow tube. The fluid speed increases as it passes through the narrowest part of the tube, which causes a decrease in pressure. This decrease in pressure causes a vacuum to form at the end of the tube, which can be used to draw in a fluid or gas.

The Venturi effect is specifically utilized in the injector torch to draw in acetylene. The torch contains a narrow tube connected to the acetylene gas supply. As the gas flows through the tube, it passes through a narrow constriction, leading to an increase in gas speed and a decrease in pressure. This results in the Venturi effect drawing in acetylene.