WorksheetsScratch Coat Render
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
what stage is scratch coat render
a)
3rd
b)
4th
c)
1st
d)
2nd
2.
What tools do you use to apply the render to the wall?
a)
straight edge and trowel
b)
hawk and trowel
c)
hawk and small tool
d)
bucket trowel and trowel
3.
what thickness should your scratch coat be? (average)
a)
5mm
b)
11mm
c)
9mm
d)
13mm
4.
what tool do you use to flatten off the render?
a)
feather edge
b)
sponge
c)
trowel
d)
small tool
5.
what is the sand cement mix ratio
a)
1-3
b)
1-5
c)
2-3
d)
1-4
6.
Why is it important to scratch the surface of the scratch coat?
a)
for ascetic
b)
to improve adhesion for next layer
c)
to reduce drying time
d)
to add texture
7.
Which additive can be used in a scratch coat to improve workability?
a)
sugar
b)
oil
c)
lime
d)
water
8.
What is the primary purpose of a scratch coat?
a)
final finish
b)
base layer
c)
decoration layer
d)
insulation
100 %
