

MCQOPTIONS
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1. |
Which of the following order is correct regarding the specific gravity of the materials used in the mixed media filter? |
A. | Anthracite coal < Sand > Garnet sand |
B. | Anthracite coal > Sand > Garnet sand |
C. | Anthracite coal = Sand = Garnet sand |
D. | Anthracite coal < Sand < Garnet sand |
Answer» E. | |