The O horizons of a soil are dominantly organic horizons occurring above mineral horizons
Indicate whether the statement is true or false
TRUE
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The sum of the whole bricks used on the first corner layout course _____ the number of courses high of the completed corner.
A. equals B. is half C. is two times D. has no correlation with
Answer the following statement(s) true (T) or false (F)
1. Transformers are among the least efficient machines known. 2. Transformer values of voltage, current, and turns can be computed using formulas. 3.When computing the values of a transformer with multiple secondary windings, treat each secondary as part of the transformer group as a whole. 4.Loads that are intended to operate on 120 V, such as water heaters, electric resistance heating units, and central air conditioners, are connected directly across the lines of the secondary. 5.The nameplate lists the current rating of the windings.
If the tongue and lace area of a welder's safety shoes are exposed, the welder should _____
a. add cotton boot covers b. wear leather spats or chaps c. position the exposed area away from the arc d. use shielding gas to protect the exposed area
______ construction is often used in mill construction.
A. Frame B. ordinary C. heavy timber D. noncombustible