COMPREHENSIVE
QUESTIONS (FREQUENTLY
TESTED) WITH VERIFIED
ANSWERS GRADED A+
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1. According to ASTM C117, you must determine the mass to what
accuracy? Answer: .1g
2. According to ASTM C117, What is a wetting agent? Answer: Any dispersing
agent, such as liquid dishwashing detergents, that will promote separation of the fine
materials
3. According to ASTM C117, at what temperature should the sample
be dried?-
Answer: 110 +/- 5 °C (230 +/- 9 °F)
4. According to ASTM C117, with a nominal particle size of smaller
than the #4 sieve, what is the smallest amount of sample allowed?
Answer: 300g
5. According to ASTM C117, what two sieves are to be used? Answer:
#200 and #16
6. According to ASTM C136,at what temperature should the sample be
dried? Answer: -
110 +/- 5 °C (230 +/- 9 °F)
7. According to ASTM C136, what is the maximum retention allowed
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for sieves smaller than #4? Answer: 7 kg/m^2 of sieving area
8. According to ASTM C136, what is the maximum retention allowed
for sieves of #4 and larger? Answer: 2.5 * (sieve opening mm *(ettective sieve area
m^2))
9. According to ASTM C136, what percent difference between
initial sample weight and final sample weight invalidates the
test? Answer: .3%
10. According to ASTM C136, What test method should be used
for materials finer than the #200 sieve? Answer: ASTM C117
11. According to ASTM D75, at least how many approximately
equal increments should be obtained? Answer: 3
12. According to ASTM D75,when sampling from a flowing
aggregate stream, which practice shall be used? Answer: ASTM D
3665
13. According to ASTM D75, all transport containers must be so
constructed as to? Answer: preclude loss or contamination of any part of
the sample, or damage to the contents from mishandling during shipment.
14. According to ASTM D75, shipping containers shall have
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