APST CH24 OxyFuel Cutting

Brazing is the process of ____ with metals and alloys that melt at or above 840°F.

• Gluing
• Heating
• Bonding
• Shaping

Since the 1800s, ____ gases have been combined with oxygen for the purpose of welding metals.

• Combustible
• Flammable
• Burnable
• All of these
  

Slag is a good ____ .

• Insulator
• Bonding Agent
• Conductor
• None of these

Brass is a mixture of ____ and ____ .

• Copper, Zinc
• Pewter, Tin
• Gold, Bronze
• Copper, Tin

The fuel most suitable for gas welding is ____ .

• acetylene
• oxygen
• propane
• all of these

____ is the distance from the metal to the torch tip.

•  clearance
• space
• gap
• none of these

straight and square with smooth face

• Correct cut
• Space
• Clearance
• Gas Pressure

too high will produce a dish shape near the top of the kerf

• Gas pressure
• Clearance
• Preheat
• Speed

too much makes incomplete cut with rough edges

• gas pressure
• clearance
• preheat
• speed

if too hot or too slow, the surface melts before the metal is heated through

• Preheat
• Speed
• Clearance
• Gas Pressure