Common plumbing processes part 2

What is the tool shown in the image used for?

• Cutting metal sheets

• Drilling holes

• Bending tubes

• Welding joints

What color is associated with heavy grade tubes used in steam and fire systems?

• Blue

• Brown

• Red

• Green

Which grade of tubes is used for gas applications?

• Heavy

• Medium

• Light

• Extra Heavy

What is the primary use for medium grade tubes?

• Gas

• Steam and fire systems

• Heating and oil lines

• Water supply

What is commonly used to secure LCS in position?

• Bolts

• Clamps

• Munson rings

• Screws

What is the composition of LCS?

• 99.85% iron and 0.15% carbon

• 98% iron and 2% carbon

• 95% iron and 5% carbon

• 90% iron and 10% carbon

How are diameters and lengths measured for LCS?

• Metric for both

• Imperial for both

• Imperial for diameters and metric for lengths

• Metric for diameters and imperial for lengths

What type of joints can be used for LCS?

• Threading, welding, and special compression joints

• Soldering, gluing, and riveting

• Bolting, nailing, and stapling

• Clamping, screwing, and pinning

What materials are used to seal the threads of LCS?

• PTFE, red paste, and hemp

• Glue, tape, and rubber

• Wax, oil, and silicone

• Cement, clay, and sand

Which protection method is applied both inside and outside of tubes?

• Denso tape

• Paint

• Galvanized

• Chemical