Exam 31: Oxyfuel Welding and Cutting Equipment, Setup, and Operation

A safety release valve is made up of a small ball held tightly against a(n) ____________________ by a spring.

____ seal tips must be tightened with a wrench.

​The heat produced by the secondary flame of an MPS gas is about ____ the heat of acetylene.

Oxygen manifolds must be at least ____ feet away from fuel gas manifolds.

When mixing oxygen and fuel gas, one method uses a higher oxygen pressure and mixes gases in a(n) ____.

How does a regulator work?

When mixing oxygen and fuel gas, one method uses equal or balanced pressure and mixes gases in a(n) ____.

In a two-stage regulator, the first spring ____.

What are the factors that affect the accuracy of fuel-gas flame temperature and heat readings? ​

When taping hoses together, the hoses should be wrapped for about ____ in.out of every ____ in.

The size of a hose is the ____ of the hose.

Most welding hoses used today are molded together as one piece and are referred to as ____________________ hose.

To obtain the absolute pressure, ____.

The ____________________ inside the regulator gauge is bent in the shape of the letter C.

​____________________ produces only a primary combustion flame, unlike hydrocarbon gases, which have both primary and secondary combustion.

​The final products of all clean-burning hydrocarbon flames are ____.

The ____ pressure gauge shows the pressure at the regulator.

​What is the finished flame product of reducing oxyhydrogen?

​The withdrawal rate of gas from a cylinder should not exceed ____ of the total cylinder capacity per hour.

​Of the following fuel gases, which has the fastest burning velocity?