The power portable sheet metal ____________________ is a tool that can be very helpful when cutting irregular shapes.
Fill in the blank(s) with the appropriate word(s).
nibbler
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The refrigerant in a mechanical compression refrigeration system absorbs and releases heat by:
A) Changing its physical state. B) Converting energy to mass. C) Changing its molecular composition. D) Changing its temperature.
What is a k factor?
A) A measure of thermal conductivity in BTU/hr/ft2/°F/in of thickness B) A measure of heat content in BTU/lb C) A measure of specific heat capacity in BTU/lb D) A measure of thermal resistance in BTU/hr/ft2/°F/in of thickness
It is not important to match lamps to ballast as no harm will occur if they are mismatched.
Answer the following statement true (T) or false (F)
A ____ rectifier produces the greatest amount of ripple.
a. half-wave, multi-phase b. full-wave, multi-phase c. half-wave, single-phase d. full-wave, single phase