Planning and Preparing for Cavity Walls

A cut through view of what a building looks like inside is called what?

• A risk assessment

• A specification

• (Cross) sectional drawing

• A plan

What would happen if an operative did not understand a drawing prior to starting a task?

• Incorrect dimensions or product

• Correct dimensions or product

• The job is unsafe

• The site Manager will build the job

Which tool can be used to check that a return has been built correctly at 90 degrees to the wall?

• A bolster chisel

• A spirit level

• A profile

• A builders square

How many blocks are needed for a wall 8800mm long?

• 15

• 20

• 10

• 17

Why should materials be placed at least 600mm from the work area?

• To leave room for sitting and drinking tea

• To make you work harder

• To give you space to work and reduce trip hazards

• To give you room to spill mortar

Which answer is the WRONG one?

What characteristics must a wall tie have?

• It must let water drip down the cavity

• It must be rust proof

• It must be strong

• It must be weak

Why do risk assessments state that gloves should be worn when mixing mortar?

• Cement burns

• Dermatitis

• Skin irritation

• All of these

Why should a cavity be kept clean of mortar?

• To prevent damp crossing the cavity

• To allow ventilation

• To reduce the strength of the wall

• To make it look neatr

What is the purpose of wall ties within a cavity wall?

• To tie the 2 leaves together and increase strength

• To allow mice to climb the cavity

• To keep you busy

• To allow damp to cross the cavity

How are the number of hours worked by an operative recorded?

• On a risk assessment

• On an old plan

• On your phone

• On a completed timesheet