Highly weathered soils low in available sulfur in their A horizons often have adequate supplies of available sulfur in deeper, clay-rich horizons
Indicate whether the statement is true or false
TRUE
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Fiber optic cables are composed of three sections: the core, the ____, and the sheath.
A. jacket B. cladding C. skin D. center
Switching to aluminum heads requires lowering the compression ratio.
Answer the following statement true (T) or false (F)
A mandrel will slip into a bore on one of its ends. Why then does it press tightly in a bore?
A) It is made in a "barrel" shape so that it is slightly larger in the center that at the ends B) The high pressure lubricant applied to its surface causes the bore to tighten C) It is made very slightly tapered so that it is somewhat larger at one end D) It has been made rough by a knurling process in the center thus enlarging it slightly
To avoid falling, when working above a sheetrock ceiling technicians should:
A) Walk quickly whenever it is necessary to walk directly on the sheetrock. B) Walk slowly whenever it is necessary to walk directly on the sheetrock. C) Step only on the sheetrock between the ceiling joists. D) Step only on the ceiling joists.