If the faces of a polyhedron are equal polygons, the resulting solid figure is a _____ polyhedron?
A. acute
B. obtuse
C. regular
D. straight
Answer: C
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A 5-ohm and a 20-ohm resistor are connected in parallel. What is the total resistance of these two resistors?
a. 100 ohms b. 25 ohms c. 4 ohms d. 2 ohms
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Which of the following is true of fluxes?
A. They are not reactive at room temperature. B. If they are overheated they contaminate the joint. C. They are not able to dissolve surface oxides. D. Fluxes are able to dissolve oils.
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? Identify and state the historical significance of Burton Wheeler.
What will be an ideal response?
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What type of units are required by the EPA to have service valves?
A) Type II only B) Type I only C) Types I, II, and III D) Type II and Type III
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