Which procedure is not normally done during a routine maintenance check of a reach-in freezer?
a. Clean evaporator coil
b. Clean condenser coil
c. Check refrigerant charge
d. Check fan motors
c
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What does the spray technician currently do to start and finish a day of spraying? How will practices change in the future?
What will be an ideal response?
If an uncharged capacitor, a resistor, a switch and a 12 V battery are connected in series, at approximately what time will the capacitor reach full charge?
A) 12 × R × C B) 5 × R × C C) R × C D) The time cannot be predicted.
Ground straps are used to:
A. Provide a return path to the battery between insulated components. B. Suppress electromagnetic induction. C. All of these choices. D. None of these choices.
____ light sensors are used to detect light or brightness similar to the human eye.
A. Ambient B. Passive C. Active D. Reactive