If contactor action is dependent on current flow, the contactor is described as _____.
a. electrically held
b. mechanically held
c. reversing
d. solid state
a. electrically held
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The ratio of the nominal battery ____________________ to the number of hours of battery discharge is the battery’s discharge rate.
Fill in the blank(s) with the appropriate word(s).
Explain ecological footprints and the IPAT equation. Compare the United States to the rest of the world in these terms
What will be an ideal response?
Fertilization to supply the nutrient element sulfur is often accomplished by which type of application?
A) broadcast of a chloride salt B) broadcast of the nearly pure element as a solid C) incorporation of powdered limestone rock D) injection of a gas into the soil E) application of a chelate to the soil
How is soot formed?
A) From a suction leak B) From an excessive over-fire draft C) From a clogged bypass plug D) From incomplete combustion