When current flows in opposite directions through two conductors placed next to each other, the resulting magnetic fields ____________________ each other.
Fill in the blank(s) with the appropriate word(s).
repel
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A substance with high ____________________ is very poisonous.
Fill in the blank(s) with the appropriate word(s).
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Using Pascals Law, if you apply 1000 psi to a 5 inch square surface how much force would you generate?
A. 50 lbs B. 500 lbs C. 5000 lbs D. 50,000 lbs
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Dampers (damper springs) are used inside some valve springs to ________
A) Decrease valve spring pressure B) Retain valve stem seals C) Prevent valve spring surge D) Keep the valve spring attached to the valve
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You have pushed in the trailer supply valve. You should not move the tractor until the whole air system is:
a. Empty. b. Between 60 and 80 psi. c. At normal pressure.
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