1.

The efficacy of pumpcrete is based primarily on1. The capacity of pump2. The aggregate size, which should not exceed 8 cm3. The diameter of pipe being large, with more than 30 cm being desirable4. The performance of the agitator

A. 1 and 4 only
B. 1 and 2 only
C. 3 and 4 only
D. 2 and 3 only
Answer» B. 1 and 2 only


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