What should the service technician do if a blown fuse is found in the unit disconnect switch during the preliminary inspection?
A) Replace the fuse with the same size and turn the disconnect switch back on.
B) Replace the fuse with a size larger to prevent nuisance problems.
C) Check all major loads for shorts and grounds.
D) Replace the fuse with a copper pipe, turn the disconnect on, and check the wire to see if it is getting warm.
C
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The most common conductors used for light and power installations range from _____.
a. 1/0 to No. 11 AWG b. 2/0 to No. 12 AWG c. 4/0 to No. 14 AWG d. No.16 AWG to No. 18 AWG
An oligopoly is always undesirable for customers.
Answer the following statement true (T) or false (F)
What is carbon monoxide the result of in the internal combustion engine?
What will be an ideal response?
What side of an air-conditioning coil generally collects dirt?
A) The side where air exits the coil B) Both sides build up dirt equally. C) Dirt will not build up on an air-conditioning evaporator coil. D) The side where air enters the coil