By 1924, the automatic-tamping machine could produce _____ block a day.
A) 3000
B) 1000
C) 750
D) 250
Correct Answer:
Verified
Q1: _ are U-shaped and hollow in the
Q3: _ block are designed and made with
Q4: Early concrete masons combined quick lime and
Q5: Joseph Gibbs's cast his block in a
Q6: Concrete block is a very durable building
Q7: Block sizes are expressed as _ sizes,
Q8: Sound _ is the measure of the
Q9: With two workers, the hand-tamping process of
Q10: _ are sand and pea gravel or
Q11: Lightweight aggregates used in block making today
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