PCI Level 1 & 2 Questions and Answers
(Ch. 1) A number of principal factors in quality control are mentioned in this chapter. Name four
1. Commitment of management to quality
2. Qualified personnel for design, production, and inspection
3. Testing and Inspection of all materials
4. Accurate, c...
PCI Level 1 & 2 Questions and Answers
(Ch. 1) A number of principal factors in quality control are mentioned in this chapter.
Name four - answer 1. Commitment of management to quality
2. Qualified personnel for design, production, and inspection
3. Testing and Inspection of all materials
4. Accurate, clear, and complete shop DWGs.
(Ch. 1) Inspection and recordkeeping cover many areas in production. Name four -
answer 1. Tensioning
2. ID, Examine, Accept, and plant testing of materials and sub assemblies.
3. Beds and forms prior to concreting
4. Member dimensions and strand/rebar position and type.
(Ch. 2) Embedments made with headed studs should be reviewed and checked when
placed for four different items or conditions: - answer 1. Stud diameter/size
2. Ceramic ferrules removed to inspect weld
3. Plate orientation
4. Security to form
5. Coating
(Ch. 2) Quality control should routinely inspect beds for several things. Name four: -
answer 1. Cracked welds
2. Abutment movement/damage
3. Bent plates
4. Loose clamps
5. Offset form joints.
Minimum concrete temp during initial curing? - answer 50 deg. F
(Ch. 3) How are fine and coarse aggregates defined by the standard (ASTM C33) and
how does a plant check these criteria - answer Gradation
Check visually and with monthly gradation tests from supplier
Particle size distribution and FM
(3) When evaluating a new source for coarse aggregate or if your supplier is changing
his particular source, what testing should be performed, if any, on the aggregate
material? - answer Gradation, SG, absorption, abrasion, reactivity, soundness,
organics, and deleterious.
(3) Name the types of admixtures identified as HRWA, what is the general spec? -
answer Type F and G superplasticizers
, ASTM C-494
(3) Name five advantages of pozzolans - answer 1. Reduce cement content
2. Lowers heat of hydration
3. Permeability
4. Reactivity
5. Plasticity
(4) Name five procedures to prevent plastic shrinkage - answer 1. Cover/shade
aggregates
2. Replace mix water with ice
3. Moist/cool burlap
4. Set-retarding admixtures
5. Shade product surfaces
(4) The maximum concrete temperature at placement should be - answer 95 deg. F
(4) ASTM C-403 is what - answer ASTM C-403:
Time setting of concrete mixtures by penetration resistance
(4) When not employing accelerated curing methods, concrete curing involves
controlling what two factors for the concrete? - answer Moisture and heat retention
(4) Concrete strength gain during the curing period falls into three stages. Define those
stages as to the strength gains that can be expected and the amount of time that each
stage entails: - answer 1. Preset stage: 3-5 hrs to reach 500 psi
2. Rapid strength gain: 8 more hrs, 500-700 psi/hr
3. Moderate strength gain: 8-12 more hrs, 50-100 psi/hr
(5) Bar cover is generally equal to or greater than ???? x the size of the aggregate top
size? - answer 1.33
(5) ASTM A775 is for what - answer Epoxy-coated rebar
(5) ASTM A767 is for what - answer Galvanized bar bending
(5) If the inside diameter of the WWF bend is smaller than 8 wire diameters (dw), the
bend shall be located at least how many wire diameters from the nearest welded cross
wire? - answer 4 dw
(5) What are the minimum bend diameters?
1) WWF = W6 or smaller
2) Larger than W6 - answer 1) D greater or equal to 2 dw
2) greater than 4 dw
(5) Elongation is measured to the nearest ??? inch for beds greater than 50'?
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