What should the technician do before loosening bolts or screws on air-conditioning system components?
What will be an ideal response?
Make sure the pressure inside the part has been relieved.
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The bonding conductor shall be solid copper, insulated, covered or bare, and not smaller than ____.
A. 2 AWG B. 4 AWG C. 6 AWG D. 8 AWG
If the outer shell of an atom has one free electron it is an ideal:
a. conductor b. semi-conductor c. semi-insulator d. insulator
Which of the following is not a purpose for grounding equipment associated with an ungrounded system?
A. Even though the system is not grounded, metallic enclosures for the system conductors must be grounded and bonded to protect against shock hazards. B. If the system is not required to be grounded, there is no requirement for the equipment associated with the ungrounded system to be grounded. C. Even though the system is not grounded, grounding the enclosure provides a path for overvoltages to flow to the earth. D. Even though the system is not grounded, bonding the enclosures together provides a path for fault current to flow over.
Examples of repair graftage includes: ________, ________, and ________.
Fill in the blank(s) with the appropriate word(s).