The compressor in a refrigeration system ____.
A. raises the boiling point of the refrigerant
B. pumps the refrigerant throughout the system
C. both a and b
D. none of the above
Answer: B
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The metric system is a "base-10" or "____" system in that values can be easily multiplied or divided by 10 or powers of 10.
A. binary B. quaternary C. decimal D. hexadecimal
In the case of 3-D object reflections, each point of the object has an image point in the reflection such that the line segment joining them is ____ by the plane of reflection.
A. perpendicularly bisected B. cut in differing proportions C. reflected D. rotated
When secondary circuit signal air is routed to through the trailer service signal circuit, which brake valve is responsible?
A. tractor foot valve B. trailer hand valve C. tractor protection valve D. inversion valve
The hexadecimal equivalent of decimal 21 is ________
A) 1216 B) 2116 C) 1516 D) 1016