Which of the following is not a mechanical interlock device?
A) Tongue-operated B) Bar-operated C) Hinge-operated D) Cam-operated
B
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Some very ancient food plants, such as grapes, olives, pineapples, and bananas, were not grown for seeds. They were propagated by ________.
Fill in the blank(s) with the appropriate word(s).
After harvest, red raspberry canes are thinned and all root suckers growing into the rows or between the rows are removed
Indicate whether the statement is true or false
Answer the following statement(s) true (T) or false (F)
In tropical climates, footings must be placed as much as 6 feet below the surface.
A ____ minimum vertical clearance is required above finished grade for sidewalks, or from any platform or projection from which overhead conductors (of 150 volts, or less, to ground) might be reached.
A. 9-ft B. 10-ft C. 11-ft D. 12-ft