Pipework 50 question Quiz

What is the main purpose of BS 6891?

• To specify requirements for gas appliances

• To specify requirements for gas pipework

• To specify requirements for electrical installations

• To specify requirements for water pipework

Which types of premises does BS 6891 apply to?

• Commercial premises

• Industrial premises

• Domestic premises

• Agricultural premises

What is the maximum operating pressure for installations covered by BS 6891?

• 2 bar

• 75 mbar

• 100 bar

• 150 mbar

Name three acceptable materials for gas pipework under BS 6891.

• Copper, steel, and polyethylene

• Copper, aluminum, and polyethylene

• Steel, aluminum, and PVC

• Copper, steel, and PVC

What is the required minimum distance between gas pipework and electrical cables?

• 10 mm

• 15 mm

• 20 mm

• 25 mm

What does the term 'low pressure' refer to in BS 6891?

• Gas pressure not exceeding 50 mbar

• Gas pressure not exceeding 75 mbar

• Gas pressure not exceeding 100 mbar

• Gas pressure not exceeding 150 mbar

What is the standard test medium for tightness testing of new installations?

• Water

• Air

• Inert gas

• Both B and C

What is the minimum duration for a tightness test on a new installation?

• 30 seconds

• 1 minute

• 4 minutes

• 2 minutes

What is the acceptable pressure drop during a tightness test for a domestic installation?

• 0 mbar

• 1 mbar

• 2 mbar

• 3 mbar

What is the minimum depth for buried gas pipework in domestic premises?

• 200 mm

• 300 mm

• 375 mm

• 450 mm