GMJ 6035 plumbing principles - Notching Joists etc

What is the maximum allowable depth for a notch in a joist according to Building Regulations?

• 
  

• • 1/4 of the joist depth

• 1/3 of the joist depth

• • 1/8 of the joist depth

• 1/2 of the joist depth

What is the maximum allowable depth for a notch in a joist according to Building Regulations?

• 
  

• • 1/4 of the joist depth

• 1/3 of the joist depth

• • 1/8 of the joist depth

• 1/2 of the joist depth

When drilling holes in joists, what is the maximum allowable diameter of a hole?

• 
  

• • 1/8 of the joist depth

• • 1/4 of the joist depth

• • 1/3 of the joist depth

• • 1/2 of the joist depth

When drilling holes in joists, what is the maximum allowable diameter of a hole?

• 
  

• • 1/8 of the joist depth

• • 1/4 of the joist depth

• • 1/3 of the joist depth

• • 1/2 of the joist depth

Where should holes be drilled in a joist to avoid structural weakening?

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• • Near the edge of the joist

• • On the neutral axis of the joist (along the centre line)

• • At the top of the joist

• • Close to the wall

What is the minimum distance between two drilled holes in a joist?

• • Equal to the diameter of the holes

• • Twice the diameter of the holes

• • Three times the diameter of the holes

• • Four times the diameter of the holes

What is the minimum distance between two drilled holes in a joist?

• • Equal to the diameter of the holes

• • Twice the diameter of the holes

• • Three times the diameter of the holes

• • Four times the diameter of the holes

What is the maximum depth for a vertical chase in a solid wall?

• • 1/4 of the wall thickness

• • 1/3 of the wall thickness

• • 1/6 of the wall thickness

• • 1/2 of the wall thickness

What is the maximum depth for a horizontal chase in a cavity wall?

• 
  

• • 1/4 of the leaf thickness

• • 1/3 of the leaf thickness

• • 1/6 of the leaf thickness

• • 1/8 of the leaf thickness

What is the maximum depth for a horizontal chase in a cavity wall?

• 
  

• • 1/4 of the leaf thickness

• • 1/3 of the leaf thickness

• • 1/6 of the leaf thickness

• • 1/8 of the leaf thickness