WorksheetsOcc87 Place and finish non-specialist concrete
Total questions: 45
Worksheet time: 45mins
Name
Class
Date
1.
What is the optimum temperature for curing concrete?
a)
70 to 90 degrees F
b)
30 to 50 degrees F
c)
80 to 100 degrees F
d)
50 to 70 degrees
2.
The purpose of forming concrete is;
a)
to self level
b)
to allow to set to the desired shape
c)
to cure
d)
to step down in foundations
3.
Fine aggregate is typically less than______ in millimetres?
a)
1mm
b)
3mm
c)
5mm
d)
10mm
4.
What is concrete made of?
a)
sand, chippings and chalk
b)
cement and water
c)
sea water and beach sand
d)
grit sand, chippings, cement and water
5.
How is concrete typically ordered?
a)
Inch cube
b)
metre cube
c)
yard cube
d)
foot cube
6.
Which of these is NOT a process when concreting?
a)
Compacting hard-core
b)
Screeding
c)
Adding reinforcement
d)
Mixing with foul water
7.
In concreting terms, what does CMU stand for?
a)
Concrete Masonry Units
b)
Concrete managing upgrade
c)
Computer machine unit
d)
Construction Mainly Under
8.
Common types of materials to construct formwork are?
a)
Metal
b)
Timber
c)
Plywood
d)
All of the above
9.
To REDUCE pressure on concrete forms, pour the concrete
a)
Fast
b)
As hard as you can
c)
Slowly
d)
As high as you can
10.
Concrete has...
a)
weak compression strength
b)
great compression strength
c)
100% water resistant properties
d)
great tensile strength
11.
Which of the following is not a part of the concrete mixture?
a)
Water
b)
Air
c)
Cement
d)
Aggregate
12.
Portland cement is made by grinding this stone into a fine powder;
a)
Granite
b)
Lava Rock
c)
Sandstone
d)
Limestone
13.
What is the point of tamping concrete?
a)
To push the aggregate into the concrete
b)
Keep cement from cracking
c)
To smooth it out
d)
To remove the water
14.
What does the word "set" mean when referring to concrete?
a)
Square
b)
Tamping
c)
Smooth
d)
Dry
15.
This tool is used to smooth the surface of concrete before it dry's;
a)
Tamp
b)
Finishing trowel
c)
Pointing trowel
d)
Edger
16.
This tool has a 90 degree rounded edge;
a)
Pointing trowel
b)
Finishing trowel
c)
Tamp
d)
Edger
17.
Which is of the following is NOT an attribute of concrete?
a)
Attractiveness
b)
Durability
c)
Versatility
d)
Strength
18.
What gives concrete a white appearance to it?
a)
Sand
b)
Water
c)
Limestone
d)
Reinforcement
19.
What is the test to determine wetness or dryness of a concrete mix (workability)?
a)
Slump test
b)
Theory test
c)
Aggregate test
d)
George Test
20.
What is this tool?
a)
Spirit level
b)
Straight edge
c)
Float
d)
Compacting plate
21.
What is this tool?
a)
Edger
b)
Screed bar
c)
Groover
d)
Bull float
22.
What is this tool?
a)
Edger
b)
Finishing float
c)
Bull float
d)
Pointing trowel
23.
What is this tool?
a)
Jointer/groover
b)
Bull float
c)
Power float
d)
Chariot
24.
Used to round off the edges of a concrete slab;
a)
Bull float
b)
Straight edge
c)
Edger
d)
Jointer
25.
A material that can pass through a 5mm seive is classed as a what?
a)
Fine aggregate
b)
Course aggregate
c)
Top soil
d)
Indian stone
26.
Gravel/chippings used in concrete is obtained from?
a)
River beds
b)
Beaches
c)
Clay
d)
Quarry's
27.
The correct way of letting concrete set is called?
a)
Setting
b)
Curing
c)
Hydration
d)
Batching
28.
What foundation covers the footprint of the building?
a)
Pile
b)
Strip
c)
Raft
d)
Pad
29.
The correct word for usuable water in concrete is?
a)
Drinkable
b)
Clean
c)
Potable
d)
Adequate
30.
What is the correct name for the foundation below?
a)
Piled
b)
Strip
c)
Raft
d)
Pad
31.
Wide strip foundation should include?
a)
Reinforcement
b)
DPC
c)
Wall ties
d)
Timber
32.
For sloping sites the best foundation to be used is?
a)
Raft
b)
Pad
c)
Stepped strip
d)
Trenchfill
33.
The advantage of trench fill foundations are?
a)
Quick
b)
Cheap
c)
Environmentally friendly
d)
Containing no sand
34.
What causes hydration?
a)
Adding water
b)
Removing water
c)
Adding chemicals
d)
Exposure to air
35.
Why is concrete compacted?
a)
To remove heat
b)
To remove water
c)
To remove air and voids
d)
To remove toxins and chemicals
36.
How long after cubes are made are they tested for strength?
a)
10 days
b)
18 days
c)
20 days
d)
28 days
37.
What is the most common cement used in concrete?
a)
Rugby
b)
Portland
c)
Mastercrete
d)
Lime
38.
How can you produce concrete to a consistent strength?
a)
Batching
b)
Use less water
c)
Use more cement
d)
Mixing well
39.
What is used to allow variation of movement in large concrete slabs?
a)
Sealant
b)
Timber
c)
Expansion joint
d)
Insulation
40.
What is release agent used for?
a)
Allows you to mix well
b)
To oil the tamp
c)
To remove voids
d)
to allow you to strike the concrete effectively
41.
What is carried out to check the cleanliness of aggregates?
a)
Silt test
b)
Slump Test
c)
Compression test
d)
Tensile test
42.
Coarse aggregate can range between 5 and 40 mm but if it is to be used for reinforced concrete, it should be?
a)
10mm
b)
15mm
c)
20mm
d)
25mm
43.
Sand is a?
a)
Course aggregate
b)
Small aggregate
c)
Large aggregate
d)
Fine aggregate
44.
Concrete alone is strong in?
a)
Compressive and Tensile
b)
Tensile but weak in Compressive
c)
Compressive but weak in Tensile
d)
None of the above
45.
What did ancient concrete contain that modern concrete does not?
a)
Water
b)
Aggregate
c)
Sand
d)
Animal Hair
100 %
