Ammonium fixation would be expected to be greatest in soils containing a lot of ________
A) Rhizobium bacteria
B) iron oxides
C) vermiculite
D) Frankia
E) both C and D
C
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Electrical devices or components are shown in their ____________________ condition on a ladder diagram.
Fill in the blank(s) with the appropriate word(s).
Carbon deposits found inside furnace tubes:
a. carbonization b. fouling c. coking d. mineral deposits
Using the diagram, determine the measure of ?7.
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Fill in the blank(s) with the appropriate word(s).
The chamfer on the inside edge of a brake drum usually indicates ________
A) Bi-metallic drums (1/2 cast iron and 1/2 steel) B) Machine to diameter C) Maximum allowable inside diameter D) Aluminum drum with cast iron inset