Rectified and controlled direct current is fed to the armature of the motor by ____ controlled rectifiers.
a. silicon
b. aluminum
c. ceramic
d. phosphorus
a. silicon
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home. A. True B. False
The first step in selecting commercial refrigeration equipment for a new installation is:
A) Perform a heat load calculation to determine the required BTU capacity of the system. B) Compile a list of components already in inventory so that you can see what you will have to choose from. C) Compile a list of component prices in order to determine how large a system you can afford. D) Select the compressor because all other components will be sized to match it.
Winter blend gasoline ________
A) Can cause engine driveability problems if used during warm weather B) Has a higher RVP C) Vaporizes more easily than summer blend gasoline D) All of the above