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WorksheetsOcc 30 - Mix Practice
Total questions: 33
Worksheet time: 32mins
Which are the ingredients of mortar?
Plasters, cements and clay.
Plasters, additives and sand.
Sand, lime, water and cements.
Binding elements, water and lime.
Plaster is made into a smooth paste?
True
False
What are the main areas plaster is used ?
Walls and ceilings
Floors and footings
Cavity and roof
Doors and windows
What is cement?
It is a air hard substance.
It is made by baking and grinding chalk.
It is a mixture containing tiny rocks.
A grey floury like powder used in mortar and cement
What is the ratio for mortar used in substructure?
1:2
1:3
1:4
1:5
What is the ratio for mortar used in the superstructure?
1:2
1:3
1:4
1:5
What is the ratio for mortar used in internal works?
1:2
1:3
1:4
1:5
What size is a fine aggregate define as?
Below 5mm
Above 5mm
What size is a coarse aggregate define as?
Below 5mm
Above 5mm
Which cement already has plasticiser added to it?
Rapid hardening
OPC
Masonry
Sulphate resisting
Most suitable method of protecting freshly laid concrete slabs from heavy rain?
Hessian
Towels
Polythene sheeting
Planks
What cement should you use for footings?
Rapid hardening
OPC
Sulphate resisting
Masonry
Which of the following is the least accurate way of gauging?
Bucket
Gauge box
Shovel
Gorilla tub
What procedure should a construction worker follow if they are injured mixing mortar?
Contact Head Office
Warn Colleagues
Call the Health and Safety Executive
Record in the accident book
When laying bricks what temperature should it be?
1 degree and rising
2 degrees and rising
3 degrees and rising
4 degrees and rising
On a hot day what additive would you use for brickwork?
Accelerator
Retarder
Plasticiser
Frost proofer
What aggregate would you use for concrete?
Building sand
Grit sand
Silica sand
Kiln dried sand
To stop frost damage which two things will help?
Plasticiser
Hessian
PVA
Air entraining agents
How should plasterboard be recycled?
In the ground
Mixed skip
Separate skip
Dumped on site
How could you stop rain ruining your brickwork?
Polythene
DPC
Wood
Coats
1-5 ratio what part is building sand?
1
5
Health and safety precautions must be taken when mixing plaster because?
Plaster can get wet
Plaster can release dust particles
Plaster can get hot
Plaster can burn
Plaster and cement should be stored:
Outside undercover.
Outside uncovered.
Raised off the ground in a dry area.
Raised off the ground in a damp area.
Why is it important to rotate plaster and cement stock?
So that older materials are used first.
To keep storage areas tidy.
So staff know what materials are in stock.
So staff know where materials are.
What might be added to a mortar mix for an old building?
Plaster
Lime
Sharp sand
Cement
Exposure to wet concrete can cause:
Cuts
Burns
White finger
Blisters
Information about materials to be used would be found in:
Method statement
Risk assessment
Site plan
The specification
Plasterboard should be stored:
Up right and covered.
Flat, off the ground and uncovered.
Flat, off the ground and covered.
Outside, flat and covered.
What happens when skin comes into contact with wet cement or mortar?
•Weils disease
•Burns
•Fungal infection
•Limb stiffness
What risks are associated with mixing materials by hand?
•Electrocution
•Dermatitis
•Falling Objects
•Lung Cancer
