1587292
Descripción
Test por Steve Lockwood, actualizado hace más de 1 año
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Creado por Steve Lockwood
hace más de 9 años
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Pregunta 1
Pregunta
1. How much mixed material is needed to complete a floor screed 5.000 m long by 4.000 m wide
and 0.050 m thick?
Respuesta
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0.25 m3
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0.5 m3
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1 m3
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1.5 m3
Pregunta 2
Pregunta
2. Tools and equipment for floor screeding will generally include:
Respuesta
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sweeping brush, trowel, float, mixer, shovel
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splash brush, small tool, gauger, trowel, float
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spirit level, trowel, buckets, mixer, float
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levelling equipment, trowel, float, shovel buckets, mixer
Pregunta 3
Pregunta
Plastic sheeting below the structural floor is the:
Respuesta
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damp proof membrane
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vapour barrier
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moisture trap
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aid to curing the floor
Pregunta 4
Pregunta
The type of cement used in floor screeds is:
Respuesta
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Masonry Portland
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Extra Portland
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Rapid Portland
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Ordinary Portland
Pregunta 5
Pregunta
Sands used for floor screeding:
Respuesta
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should contain a high proportion of fine grains
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should contain a high proportion of large grains
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can be any type
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should be sharp and well graded
Pregunta 6
Pregunta
Ready-mixed screeds are:
Respuesta
-
prepared off site and delivered as required
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prepared after work for the following day
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prepared in the morning for use during the day
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used only for self-levelling floors
Pregunta 7
Pregunta
Screed rails or battens are used to:
Respuesta
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help delivery of screed material to the workstation
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assist in forming the main area of floor
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tamp down the surface of the screed
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form channels for drainage
Pregunta 8
Pregunta
The purpose of a damp proof membrane is to:
Respuesta
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assist the passage of moisture
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assist in the curing process
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allow the screed to dry out quickly
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prevent the passage of moisture
Pregunta 9
Pregunta
Cracking of large area floors may be reduced by:
Respuesta
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use of more cement
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use of expansion strips
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adding more sand
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a self-levelling compound
Pregunta 10
Pregunta
Battens used as a guide for screeds may be:
Respuesta
-
set out from datum lines
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laid at 50 mm depth
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set out from base floor
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laid to form 75 mm depth
Pregunta 11
Pregunta
The most accurate proportioning of floor screeding materials:
Respuesta
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is by weight
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is important near heavily trafficked areas
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can be carried out using shovels
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can be carried out using buckets
Pregunta 12
Pregunta
The correct consistency for floor screeding materials is:
Respuesta
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as dry as possible
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slurry like
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semi wet
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semi dry
Pregunta 13
Pregunta
Mixing of screed material:
Respuesta
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does not have to be thorough as it will be spread by shovel
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needs to be consistent or wear will take place
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should be carried out as slowly as possible
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can take place after water has been added
Pregunta 14
Pregunta
Compacting screeds results in a:
Respuesta
-
lightweight screed
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quicker set screed
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more dense screed
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slower set screed
Pregunta 15
Pregunta
Compacting can be carried out with a:
Respuesta
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screed rail
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datum
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rule or float
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level
Pregunta 16
Pregunta
High volumes of ventilation:
Respuesta
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will aid the setting process
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will not affect the screeds after laying
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will allow the cement to harden quickly
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may make the surface of the screed dusty
Pregunta 17
Pregunta
The finish on a floor screed:
Respuesta
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is not important as it will all be covered up
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is important as it may show through the final covering
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can be completed the next day
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can be completed by the floor layer with the finish
Pregunta 18
Pregunta
Laying polythene sheet on the floor screed after laying will:
Respuesta
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act as an accelerator to the set
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produce an even surface
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allow the cement to set naturally
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keep the floor soft for the next process
Pregunta 19
Pregunta
The purpose of curing is to:
Respuesta
-
allow the cement to set and harden over a long period
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produce an even surface
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produce a lightweight screed
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aid compaction to take place
Pregunta 20
Pregunta
Where drainage outlets are fitted:
Respuesta
-
the floor must be laid from this point
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they can be repositioned later
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the floor can be altered to fit when finish is applied
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the drainage contractor will alter them to suit
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