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WorksheetsARKITAPS QUIZ 003 (BT-002)
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What admixture is added to concrete to increase its resistance to freezing and thawing?
a)
water-reducing agents
b)
air-entraining agents
c)
superplasticizers
d)
hardeners
2.
Which of the following is added to concrete due to improper mixing, consolidating and placement?
a)
entrained air
b)
enterprised air
c)
enabled air
d)
entrapped air
3.
Where can we ideally use GFRC?
a)
precast façade panels
b)
precast structural columns
c)
suspended slab
d)
concrete roofing tiles
4.
Which of the following is unlikely to be a prestressed concrete product?
a)
precast baluster
b)
precast beam
c)
precast joist
d)
precast wall
5.
High tensile steel rods and cables used for prestressing concrete is called what?
a)
prestressant
b)
stressing rods
c)
tendons
d)
mild steel
6.
Addition or retention of water to the poured concrete mix is called what?
a)
setting
b)
retempering
c)
curing
d)
drying
7.
Concrete surface hardeners are added _____________.
a)
while concrete is mixed
b)
when concrete has cured
c)
while concrete is being placed
d)
after concrete has been poured
8.
What is the main purpose of honing concrete?
a)
to make curing faster
b)
to smoothen concrete finish
c)
to expose aggregates
d)
to make concrete reflective
9.
In concrete, which is considered as the binding component?
a)
oxygen
b)
cement
c)
water
d)
paste
10.
Fine sand is also known as?
a)
G1
b)
bistay
c)
escombro
d)
river sand
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