Type C Questions and Answers
The minimum number of chutes a mechanical splitter must have for the splitting of coarse aggregate is:
8
Wich of the following fine aggregate splitters would be acceptable for mechanical splitting:
A. A splitter with 15 chutes
B. A splitter with 16 chutes
C....
Type C Questions and Answers
The minimum number of chutes a mechanical splitter must have for the splitting of
coarse aggregate is: - answer 8
Wich of the following fine aggregate splitters would be acceptable for mechanical
splitting:
A. A splitter with 15 chutes
B. A splitter with 16 chutes
C. A splitter with 17 chutes
D. None of the above - answer B
Results of gradation analysis of granular material show of the pass 75 micrometers in
the pan appears to be excessive. The cause may be:
A. The efficiency of the washing operation
B. Degradation of the aggregate
C. Defective 75 micrometer sieve
D. All of the above
E. None of the above - answer D
The total mass after sieving should not differ from the original mass by more than:
(____ %) - answer 0.3
During sieving analysis, the fraction on each sieve weighted and recorded cumulatively.
This means that:
A. The material from each sieve is added to the previously weighted material, weighed
and recorded
B. The material from each sieve is weighed, and the resultant mass is addedto the
previous mass and recorded
C. Neither of the above is acceptable - answer A
The ASTM E-11 is the designation for:
A. "Standad specification for wire cloth and Sieves for testing purposes"
B. "Material finner than 75 micrometer (No. 200) Sieve in mineral aggregates by
washing"
C. "Seive analysis of fine and coarse Aggregates by washing"
D. "Reducing samp;les of aggregates to testing size" - answer A
A riffle splitter used for preparing aggregates for further testing shall have a chute width
that exceeds the largest particle size by: - answer 50%
Sieve analysis in accordance with ASTM C-136, the maximum allowable quantity of
material retained on any one 8-ich dia. sieve below the 4.75mm sieve is:
(_____g) - answer 200
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