________ is thought to be the chemical chiefly responsible for depletion of the ozone layer.
A) Nitrogen
B) Hydrogen
C) Chlorine
D) Carbon
C) Chlorine
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When creating an auxiliary view of a curved or irregular surface, you should project points on the curved edges to define them in the new view. For a circular hole, usually ____ radial points are sufficient.
A. one B. two C. three D. four
The Hendee Special featured electric starting in 1914.
Answer the following statement true (T) or false (F)
In a series circuit:
A) The current stays the same throughout the circuit. B) The resistance stays the same throughout the circuit. C) The wattage stays the same throughout the circuit. D) The voltage stays the same throughout the circuit.
Most air conditioning manufacturers specify that refrigerant lines should be:
A) Glued B) Brazed C) Soldered D) Welded