Exam 7: Flame Cutting Equipment, Setup, and Operation

Most cutting tips are made of ____.

How is a torch tip seal checked for a leak?

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

When cutting pipe freehand, if the pipe is larger than three inches in diameter, ____.

____________________ is produced by smelting coke (a coal by-product) and lime in air-tight electric arc furnaces.

When removing a cutting tip, if the tip is stuck in the torch head, ____.

The distance that the bottom of the cut is behind the top is known as the ____________________.

Combination cutting and welding sets are often used in ____________.

When cutting ____________________ diameter pipe, the torch tip is held straight up and down and moved from the center to each side.

In a cutting torch, ____________________ is mixed with the fuel gas to form a high-temperature preheating flame.

What is backfire and what are its causes?

What are some of the various oxyfuel cutting specialties that can be found on a job?

If a cut is to be started in a place other than the edge of the plate, ____.

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

The pressure shown on a gauge is read as ____ .

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

An infrared analysis or ____________________ of the flame gives the highest temperature in the flame.

If a large cutting tip pops when the acetylene is turned off, ____.

A molecule of acetylene is made up of ____.

In some cylinders a(n) ____________________ tube is used to improve the mixing of the gas by causing the liquid to be agitated as it is used.