Plumbing Materials Quiz ac 2.1

What is the melting point of de-oxidised copper?

• 1083°C

• 1000°C

• 950°C

• 1100°C

What is the outside diameter of a copper tube with a nominal diameter of 54 mm?

• 54 mm

• 76.2 mm

• 108.1 mm

• 42 mm

Which nominal diameter has a maximum working pressure of 2 N/mm²?

• 67 mm

• 28 mm

• 18 mm

• 12 mm

Which nominal diameter has a thickness of 0.8 mm?

• 18 mm

• 12 mm

• 22 mm

• 35 mm

In which type of installations is Low Carbon Steel not really used?

• Commercial installations

• Industrial installations

• Domestic installations

• Automotive installations

Which of the following is a specialized application of Low Carbon Steel?

• Textile manufacturing

• Compressed air systems

• Food processing

• Agriculture

Which of the following is a characteristic of Low Carbon Steel grades?

• Related to color

• Related to pipe wall thickness

• Related to weight

• Related to length

What is the color code for the Light grade of pipes?

• Blue

• Red

• Brown

• Green

What is the primary use for Light grade pipes?

• Plumbing installations

• Fire suppressant sprinkler systems

• Below ground installations

• Electrical conduits

Which grade of pipe is seldom used except with fire suppressant systems?

• Medium

• Heavy

• Light

• Extra Heavy