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CAPA B Questions And Answers With Verified Solutions Latest Updated 2025
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CAPA B Questions And Answers WithVerified Solutions Latest Updated 2025
CP 55 - How should asphalt mixtures be sampled?
Answer: In accordance with CP 41
CP 55 - Method A (Sampling by Scoop)
Answer: Sampling by Scoop
CP 55 - Method B (Quartering)
Answer: Quartering
CP 55 - Method C (Riffle Type Splitter)
Answer: Riffle Type Splitter
CP 55 - Method D (Selection by Cross Section)
Answer: Selection by Cross Section
CP 44 - What must be ensured about the penetration point of the water
surface?
Answer: The smallest practical size should be used
CP 44 - What must be ensured about the condition of the immersion
container?
Answer: The container must be in an overflow condition
CP 44 - What is the order of measurements when a specimen is obtained in
the field?
Answer: Immersed, SSD, Dry
CP 44 - What is the order of measurements when a specimen is obtained in
the lab?
Answer: Dry, Immersed, SSD
CP 44 - What is the required temperature of the water in the immersion tank?
Answer: 77 ± 1.8°F
CP 44 - How is the specific gravity converted to pounds per cubic foot (pcf)?
, Answer: Multiply by 62.4
CP 51 - How often should flask calibrations be performed?
Answer: Monthly
CP 51 - What is the required temperature of the water when calibrating the
flask?
Answer: 77 ± 1°F
CP 51 - Once two identical test specimens are obtained, what should never be
done?
Answer: They must not be recombined
CP 51 - What determines the size of the sample to be taken?
Answer: Nominal Maximum Particle Size
CP 51 - What is the maximum size fine particles must be separated to?
Answer: 1/4 inch
CP 51 - How much water must be added to the flask above the sample?
Answer: At least 1 inch above the sample
CP 51 - What should be added to the flask if lime is present in the asphalt
mixture?
Answer: 2-4 drops of phenolphthalein alcohol
CP 51 - After adding phenolphthalein alcohol, how long should you wait to
check for lime presence?
Answer: 10 seconds
CP 51 - At what pressure should the vacuum be set?
Answer: 28 ± 2 mm HG
CP 51 - How long should the sample be agitated?
Answer: 15 ± 2 minutes
CP 51 - If manually agitating, what is the interval and frequency for
agitation?
Answer: Every 2 minutes, agitate for 15 ± 5 seconds
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