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1. What does the term "six-inch slump" really mean?
    The amount of water in the concrete based on the measurement of freshly mixed concrete equal to the remaining sample measured to the nearest 1/2" of the molded concrete sample as compared to a 12" slump cone.
    The stiffness of concrete based on the measurement of freshly mixed concrete equal to the drop measured to the nearest 1/4" of the molded concrete sample as compared to a 16" slump cone.
    A measure of the consistency of freshly mixed concrete, equal to the remaining sample of a molded concrete cone as compared to the slump cone used to make the sample.
    A measure of the consistency of freshly mixed concrete, equal to the drop measured of a molded concrete sample as compared to the slump cone used to make the sample.
2. When manufacturers state that concrete must be placed in 4' lifts during the pour, what does this mean? (choose the most accurate answer)
    There will be a cold joint at every 4' lift.
    Forms should be stacked and poured every 4'
    Vertical reinforcement should be doubled every 4' vertically to transfer load between the construction joints.
    The wall is not affected structurally as long as the concrete is placed in a timely fashion.
3. ICF walls have insulation R-values of:
    Approximately 45
    Approximately 40 to 50
    Approximately R-4.2 to R-4.4 per inch of thickness of the ICF wall
    Approximately R-4.2 to R-4.4 per inch of EPS
4. Which two base materials are the majority of ICFs made of:
    Expanded Polystyrene and Polybutylene
    Styrofoam and Polyesters
    Expanded Polystyrene and Polyethylene
    All of the above
5. When splicing reinforcing bars, the generally accepted minimum overlap of bars is:
    20"
    40 times the bar diameter
    20 times the bar diameter
    40"
6. Reinforcement "dowels" that extend out of footings and slabs into the ICF wall should always be set at a spacing equal to 1/2 the spacing of the vertical reinforcing of the ICF wall.
    True
    False
7. ICF walls have been fully tested and certified as fireproof, soundproof, tornado-proof, earthquake-proof and bulletproof.
    True
    False
8. What is the relationship between the density of the foam used in molding ICF forms and insulation value?
    Direct relationship (As density increases, so does the insulation value)
    Inverse relationship (As density increases, the insulation value decreases)
    Direct AND Inverse relationship (Increasing density, up to a certain point, will increase insulation value. Increasing it beyond a certainpoint will decrease the insulation value)
    There is no relationship between density of the EPS and insulation value
9. Which description most accurately describes the strength of ICF walls:
    ICF walls are stronger than plain poured concrete walls because a higher strength concrete is used in order to use a concrete pump.
    ICF walls develop a higher strength much faster than plain poured concrete walls because of the insulation of the form.
    ICF walls have higher shear and compressive strengths than plain concrete walls because of the added reinforcement of the ICF ties.
    ICF walls develop a higher strength at a slower rate than plain poured concrete walls because of the insulation of the form.
10. If one ICF meets testing criteria for specific code requirements, then code officials must deem ICFs of similar characteristics as equal.
    True
    False
11. Given a lintel that is 24" tall with a 120" span using a 6" solid continuous concrete form system with loading conditions that conform to tables in the Prescriptive Methods guide and reinforcement requirements as follows: Two #5 bars bottom, One #5 bar top with stirrups placed at d/2 starting at half the spacing distance from the end of the lintel. How many stirrups would be required?
    3
    6
    10
    11
12. When specifying concrete for ICFs, the main reason for using 3/8" pea gravel is for the following reasons:
    Consolidation, ability to flow around rebar and ties. Pump Equipment is limited by OSHA to smaller aggregate sizes only for walls.
    Meet requirements set forth by codes that limit aggregate size to no greater than 35% of the narrowest passage point in a wall.
    Flowability, consolidation, vibration requirements and other code requirements.
    All of the above
13. ICF basement walls have a higher degree of waterproofing ability than a poured in place wall or a masonry wall
    True
    False
14. ICF walls are termite-proof, meaning termites will be repelled or not attracted to ICF walls
    True
    False
15. What does the "#4" designation mean when dealing with reinforcing bar?
    The strength of the bar is 40 KSI
    The diameter is 4 times 1/8"
    It is 1/2" diameter and is grade 40
    Both answers B and C
16. In general, which of the following results when water is added to wet concrete?
    The slump of the concrete increases.
    The ultimate strength of the concrete decreases.
    The pressure that the concrete will exert on formwork increases.
    All of the above.
17. Insulating concrete forms are mentioned by name in which of the following model codes?
    Basic Building Code (BOCA)
    Uniform Building Code (ICBO)
    Standard Building Code (SBCCI)
  
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