When calibrating granular applicators, why should you use at least 5,000 sq. ft. for a rotary spreader and only 1,000 sq. ft. for a drop spreader?
What will be an ideal response?
With a drop type spreader the spray width is uniform and walking speed and wind are not factors. For rotary spreaders you need to check the distribution patterns and flow rate and the effective swath width varies with the wind and tapers as the margins.
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Concrete that has hardened but not yet gained structural strength, is referred to as _____.
a. raw b. green c. uncured d. unstable
What is the alternative when public sewers are not available?
What will be an ideal response?
In a wood foundation, the framing is covered with a plywood skin, and the plywood is covered with ____ film for complete moisture proofing.
A. polyester B. polyethylene C. polypropylene D. PVC
Bathroom ventilation fans are available in sizes ranging from about ____.
A. 10 CFM to over 75 CFM B. 25 CFM to over 100 CFM C. 50 CFM to over 200 CFM D. 75 CFM to over 300 CFM