Oxy-fuel Cutting Exam #1 Question with verified answers
The most suitable cutting process to use on ferrous metals such as straight carbon
steel is _____.
a. carbon arc cutting
b. oxyfuel cutting
c. powder cutting
d. plasma arc cutting - √√b. oxy-fuel cutting
The oxidation that occurs during an oxy-fuel cutting operation is similar to a
greatly sped-up _____.
a. tempering process
b. annealing process
c. rusting process
d. crystallizing process - √√c. rusting process
For long-term cutting of materials containing cadmium or mercury, always wear
an approved _____.
a. supplied air respirator
b. metal-fume filter
c. HEPA-rated filter
d. standard respirator - √√c. HEPA-rated filter
When performing oxy-fuel cutting, it is acceptable to wear _____.
a. a cap and safety glasses
b. a face shield over safety glasses
, c. a hard hat and sunglasses
d. a vented mesh cotton hood - √√b. a face shield over safety glasses
Two types of gases that tend to concentrate in and along low areas are _____.
a. acetylene and propylene
b. methane and butane
c. propylene and propane
d. butane and propane - √√
Combining pure oxygen with a burning material causes a fire to _____.
a. burn rapidly and violently
b. pop loudly and extinguish
c. die down and then flare up
d. burn cooler and more slowly - √√a. burn rapidly and violently
In the top and bottom of an acetylene cylinder are safety plugs with a melting
point of _____.
a. 212°F (100°C)
b. 260°F (126.7°C)
c. 300°F (148.9°C)
d. 330°F (165.6°C) - √√a. 212°F (100°C)
Three fuel gases other than acetylene used for cutting include _____.
a. argon, oxygen, and helium
b. methane, butane, and oxygen
The most suitable cutting process to use on ferrous metals such as straight carbon
steel is _____.
a. carbon arc cutting
b. oxyfuel cutting
c. powder cutting
d. plasma arc cutting - √√b. oxy-fuel cutting
The oxidation that occurs during an oxy-fuel cutting operation is similar to a
greatly sped-up _____.
a. tempering process
b. annealing process
c. rusting process
d. crystallizing process - √√c. rusting process
For long-term cutting of materials containing cadmium or mercury, always wear
an approved _____.
a. supplied air respirator
b. metal-fume filter
c. HEPA-rated filter
d. standard respirator - √√c. HEPA-rated filter
When performing oxy-fuel cutting, it is acceptable to wear _____.
a. a cap and safety glasses
b. a face shield over safety glasses
, c. a hard hat and sunglasses
d. a vented mesh cotton hood - √√b. a face shield over safety glasses
Two types of gases that tend to concentrate in and along low areas are _____.
a. acetylene and propylene
b. methane and butane
c. propylene and propane
d. butane and propane - √√
Combining pure oxygen with a burning material causes a fire to _____.
a. burn rapidly and violently
b. pop loudly and extinguish
c. die down and then flare up
d. burn cooler and more slowly - √√a. burn rapidly and violently
In the top and bottom of an acetylene cylinder are safety plugs with a melting
point of _____.
a. 212°F (100°C)
b. 260°F (126.7°C)
c. 300°F (148.9°C)
d. 330°F (165.6°C) - √√a. 212°F (100°C)
Three fuel gases other than acetylene used for cutting include _____.
a. argon, oxygen, and helium
b. methane, butane, and oxygen
