LESSON 3
PRACTICE EXERCISE
ANSWER KEY AND FEEDBACK
Item
Correct Answer and Feedback
1.
Formwork holds concrete until it sets.
Formwork produces the desired shape.
Formwork produces surface finished if desired.
Formwork protects concrete from the elements.
Formwork aids curing.
Formwork supports accessories.
Importance of Form Design. (page 3-1)
2.
Forms must be tight, rigid, and strong.
Forms must be braced sufficiently to align them and make them strong enough to hold the concrete.
Forms should be made so they can be easily removed and replaced without damage for refuse.
Form Characteristics. (page 3-2)
3.
Wood
Metal
Earth
Fiber, paper, or plastic
Form Materials. (page 3-2)
4.
Rate of placing
Expected ambient temperature
Specified type of form material
Knowing these two factors ... (page 3-4)
5.
D.
2-inch concrete pressure = 300 psf
Table 3-1. (page 3-6)
Step 4. (page 3-20)
EN5466
3-36
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