Quiz on Cylinder Stability

What is meant by the term “churning” a cylinder?

• Rotating a cylinder rapidly

• Moving a cylinder over a short distance by balancing it on the edge of its base

• Mixing contents inside a cylinder

• Rolling a cylinder on its side

What color is the oxygen cylinder painted?

• Red

• Blue

• Black

• Maroon

Which hose color is used for acetylene?

• Blue

• Red

• Black

• Green

Which setup is used for soldering?

• Propane-air

• Oxyacetylene

• Propane-oxygen

• Butane-oxygen

What is the thread direction of the acetylene hose?

• Right-hand thread

• Left-hand thread

• No thread

• Double thread

What safety device is used to prevent backflow in gas welding?

• Pressure regulator

• Flashback arrestor

• Check valve

• Flow meter

What is the purpose of a pressure regulator in gas welding?

• To mix gases

• To control the flow of gas

• To ignite the gas

• To cool the equipment