Worldwide+Sprayed+Concrete+State of the Art+Report+2005 g.bracher+Idiem
2016utah19951997currrr18881928.weebly.com · Web view5. T or FTopsoil makes a good base underneath...
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Name: Date: Binder #: Concrete Test Following are True/False questions. Circle “T” if the statement is true. Circle “F” if the statement is false. 1. T or F The terms cement and concrete refer to the same thing. 2. T or F Adding more water to the mix makes the concrete stronger. 3. T or F Concrete forms hold the concrete in the desired shape and location until it hardens. 4. T or F Forms are coated with oil to prevent them from sticking to the concrete when removed. 5. T or F Topsoil makes a good base underneath a concrete slab. 6. T or F Water can be sprayed on concrete to slow drying after it is set up. 7. T or F The faster concrete dries the stronger it will be. Following are multiple-choice type examination items. Select your choice by circling the letter next to the correct answer. 8. What is an example of course aggregate? a. Cement c. Sand b. Gravel d. Water 9. What is an example of fine aggregate? a. Cement c. Sand b. Gravel d. Water 10. When mixing concrete in a 1-2-3 ratio what does the 1 refer to? a. Cement c. Fine Aggregate b. Course Aggregate d. Water
Transcript of 2016utah19951997currrr18881928.weebly.com · Web view5. T or FTopsoil makes a good base underneath...
Name: Date: Binder #:
Concrete Test
Following are True/False questions. Circle “T” if the statement is true. Circle “F” if the statement is false.
1. T or F The terms cement and concrete refer to the same thing.
2. T or F Adding more water to the mix makes the concrete stronger.
3. T or F Concrete forms hold the concrete in the desired shape and location until it hardens.
4. T or F Forms are coated with oil to prevent them from sticking to the concrete when removed.
5. T or F Topsoil makes a good base underneath a concrete slab.
6. T or F Water can be sprayed on concrete to slow drying after it is set up.
7. T or F The faster concrete dries the stronger it will be.
Following are multiple-choice type examination items. Select your choice by circling the letter next to the correct answer.
8. What is an example of course aggregate?
a. Cement c. Sand
b. Gravel d. Water
9. What is an example of fine aggregate?
a. Cement c. Sand
b. Gravel d. Water
10. When mixing concrete in a 1-2-3 ratio what does the 1 refer to?
a. Cement c. Fine Aggregate
b. Course Aggregate d. Water
11. When mixing concrete in a 1-2-3 ratio what does the 2 refer to?
a. Cement c. Fine Aggregate
b. Course Aggregate d. Water
12. When mixing concrete in a 1-2-3 ratio what does the 3 refer to?
a. Cement c. Fine Aggregate
b. Course Aggregate d. Water
13. When you order concrete ready mix it is sold in what volume?
a. Cubic foot c. Square foot
b. Cubic yard d. Square yard
14. Steel reinforcing rods should be laid out in what pattern?
a. Diamond c. Parallel
b. Grid d. Straight
15. The proper drying and hardening of concrete is called?
a. Curing c. Screeding
b. Finishing d. Striking
Calculations
16. Calculate the amount of concrete in cubic yards needed to pour a 12 ft by 20 ft 6 inch pad. (round to the nearest 0.1 and show your work)
17. Calculate the amount of concrete in cubic yards needed to pour a 20‘ long wall that is 5 ‘ high and 1’ thick. (round to the nearest 0.1 and show your work)
Following are matching type questions. Write the letter of the name of the tool next to the number of the picture of that tool.
18
.
19.
20.
21.
22.
23.
24.
25.
26.
27.
a. Broom
b. Bull Float
c. Edger
d. Finishing trowel
e. Jointer
f. Magnesium float
g. Mixer
h. Screed board
i. Shovel
j. Wheelbarrow
k. Wood float
Instructions: Read and follow all directions. Short answer items are designed to indicate mastery of objectives as presented in class. If you need more room, write your answer on the back of the page and indicate such next to the item number. Item values are in the parentheses next to the item numbers.
28. What are two advantages of concrete?
29. What is a disadvantage of concrete?
30. What is the purpose of floating?
31. Why are grooves or joints made in the concrete?
Key
1. F
2. F
3. T
4. T
5. F
6. T
7. F
8. B
9. C
10. A
11. C
12. B
13. B
14. B
15. A
16. 4.4 cubic feet
17. 3.7 cubic feet
18. J
19. K
20. C
21. I
22. A
23. F
24. D
25. H
26. E
27. B
28. Any two of the following: fire, storm, insect, rodent proof, decay resistant, wear resistant, waterproof, strong in compression, attractive, easy to make on job, molded to any shape, sanitary, easy to clean.
29. Any of the following: low tensile strength, low ductility, low strength to weight ratio, susceptible to cracking
30. Pushes down course aggregate, brings fine aggregate and cement to surface
31. Gives a nice appearance and directs cracking along the grooves
