1587292
Descrição
Quiz por Steve Lockwood, atualizado more than 1 year ago
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Criado por Steve Lockwood
aproximadamente 10 anos atrás
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Questão 1
Questão
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?
Responda
-
0.25 m3
-
0.5 m3
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1 m3
-
1.5 m3
Questão 2
Questão
2. Tools and equipment for floor screeding will generally include:
Responda
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sweeping brush, trowel, float, mixer, shovel
-
splash brush, small tool, gauger, trowel, float
-
spirit level, trowel, buckets, mixer, float
-
levelling equipment, trowel, float, shovel buckets, mixer
Questão 3
Questão
Plastic sheeting below the structural floor is the:
Responda
-
damp proof membrane
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vapour barrier
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moisture trap
-
aid to curing the floor
Questão 4
Questão
The type of cement used in floor screeds is:
Responda
-
Masonry Portland
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Extra Portland
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Rapid Portland
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Ordinary Portland
Questão 5
Questão
Sands used for floor screeding:
Responda
-
should contain a high proportion of fine grains
-
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
Questão 6
Questão
Ready-mixed screeds are:
Responda
-
prepared off site and delivered as required
-
prepared after work for the following day
-
prepared in the morning for use during the day
-
used only for self-levelling floors
Questão 7
Questão
Screed rails or battens are used to:
Responda
-
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
Questão 8
Questão
The purpose of a damp proof membrane is to:
Responda
-
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
Questão 9
Questão
Cracking of large area floors may be reduced by:
Responda
-
use of more cement
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use of expansion strips
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adding more sand
-
a self-levelling compound
Questão 10
Questão
Battens used as a guide for screeds may be:
Responda
-
set out from datum lines
-
laid at 50 mm depth
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set out from base floor
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laid to form 75 mm depth
Questão 11
Questão
The most accurate proportioning of floor screeding materials:
Responda
-
is by weight
-
is important near heavily trafficked areas
-
can be carried out using shovels
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can be carried out using buckets
Questão 12
Questão
The correct consistency for floor screeding materials is:
Responda
-
as dry as possible
-
slurry like
-
semi wet
-
semi dry
Questão 13
Questão
Mixing of screed material:
Responda
-
does not have to be thorough as it will be spread by shovel
-
needs to be consistent or wear will take place
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should be carried out as slowly as possible
-
can take place after water has been added
Questão 14
Questão
Compacting screeds results in a:
Responda
-
lightweight screed
-
quicker set screed
-
more dense screed
-
slower set screed
Questão 15
Questão
Compacting can be carried out with a:
Responda
-
screed rail
-
datum
-
rule or float
-
level
Questão 16
Questão
High volumes of ventilation:
Responda
-
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
Questão 17
Questão
The finish on a floor screed:
Responda
-
is not important as it will all be covered up
-
is important as it may show through the final covering
-
can be completed the next day
-
can be completed by the floor layer with the finish
Questão 18
Questão
Laying polythene sheet on the floor screed after laying will:
Responda
-
act as an accelerator to the set
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produce an even surface
-
allow the cement to set naturally
-
keep the floor soft for the next process
Questão 19
Questão
The purpose of curing is to:
Responda
-
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
Questão 20
Questão
Where drainage outlets are fitted:
Responda
-
the floor must be laid from this point
-
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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