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Technology-Concrete
Test Description: Part 1
Instructions: Answer all questions to get your test result.
1) What is the name of the chemical reaction that takes place in concrete?
A
hydration
B
evaporation
C
condensation
D
saturation
2) How long do you have to wait to test concrete?
A
27 days
B
30 days
C
28 days
D
21 days
3) How long before you can work on concrete?
A
3 days
B
24 hours
C
6 days
D
7 days
4) The four main ingredients in concrete are:
A
sand, fine aggregate, pea stone, and water
B
cement, coarse aggregate, crusher run, and water
C
Portland cement, fine aggregate, sand, and water
D
cement, fine aggregate, coarse aggregate, and water
5) An example of fine aggregate is:
A
granular sand
B
38 mm stone
C
crusher run
D
pea stone
6) An example of coarse aggregate is:
A
beach sand
B
fine sand
C
granular sand
D
pea stone up to 38 mm stone
7) What is the ideal temperature for pouring concrete?
A
60-to 80 degrees F
B
50 to 70 degrees F
C
70 to 80 degrees F
D
40 to 60 degrees F
8) Concrete is best if there is:
A
low compression
B
high tension
C
high compression
D
low tension
9) What are some ways to conduct market research (or check for demand)?
A
send surveys to family members
B
call people you don't know on the telephone to see if they would like your product
C
ask a group of friends if they like your product
D
survey people, distribute free sample, sell samples at a home show for instance
10) What are two big product costs?
A
distributing and water
B
labor and office supplies
C
labor and materials
D
advertising and electricity
*select an answer for all questions
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