NCCER Oxy Fuel Cutting - Module 2

Front

The most suitable cutting process to use on ferrous metals such as straight carbon steel is.

Back

oxyfuel cutting

Answer explanation

Page Ref: Sec. Ref. 1.1.0 Objective: 1a

Front

The oxidation that occurs during an oxyfuel cutting operation is similar to a greatly sped-up ___.

Back

rusting process

Answer explanation

Page Ref: Sec. Ref. 1.1.0 Objective: 1a

Front

For long-term cutting of materials containing cadmium or mercury, always wear an approved.

Back

supplied air respirator

Answer explanation

Page Ref: Sec. Ref. 1.2.1 Objective: 1b

Front

When performing oxyfuel cutting, it is acceptable to wear .

Back

a face shield over safety glasses

Answer explanation

Page Ref: Sec. Ref. 1.2.1 Objective: 1b

Front

Two types of gases that tend to concentrate in and along low areas are.

Back

propylene and propane

Answer explanation

Page Ref: Sec. Ref. 1.2.2 Objective: 1b

Front

Oxygen cylinders must be tested ___.

Back

every ten years

Answer explanation

Page Ref: Sec. Ref. 2.1.1 Objective: 2a

Front

Combining pure oxygen with a burning material causes a fire to ___ .

Back

burn rapidly and violently

Answer explanation

Page Ref: Sec. Ref. 2.1.1 Objective: 2a

Front

In the top and bottom of an acetylene cylinder are safety plugs with a melting point of ___.

Back

212°F (100°C)

Answer explanation

Page Ref: Sec. Ref. 2.1.2 Objective: 2a

Front

Three fuel gases other than acetylene used for cutting include ____.

Back

natural gas, propylene, and propane

Answer explanation

Page Ref: Sec. Ref. 2.1.3 Objective: 2a

Front

As a reminder that the regulator on a cylinder has left-handed threads, a V-notch is sometimes cut around the _______.

Back

nut

Answer explanation

Page Ref: Sec. Ref. 2.2.0 Objective: 2b