Who may refill a DOT 39 nonrefillable cylinder?
A) Only EPA-certified refrigerant recyclers B) Only certified technicians
C) Only refrigerant manufacturers D) Nobody
D
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In a series motor, any increase in load causes an increase of ____________________ in both the field and armature circuits.
Fill in the blank(s) with the appropriate word(s).
Which of the following is true about a battery?
A. The liquid inside is not corrosive. B. It contains electrolytes. C. Disconnect the positive battery cable first. D. It produces hydrogen, which is flammable.
Both the National Cattlemen's Association and the National Pork Producers Council have creeds for fair animal treatment.
Answer the following statement true (T) or false (F)
Package or self-contained all-weather units are not normally made for electric air conditioning and ____.
A. natural gas heat B. electric heat C. LP gas heat D. oil heat