Final answer:
Electrical receptacles are usually not inspected for scorch marks. Scorch marks could indicate overheating and potential fire hazards. Reverse polarity, grounding, and correct voltage are all factors that should be inspected to ensure the safety and proper functioning of the receptacle.
Step-by-step explanation:
Electrical receptacles are usually not inspected for scorch marks (b). Reverse polarity (a), grounding (c), and correct voltage (d) are all factors that should be inspected to ensure the safety and proper functioning of the receptacle.
Scorch marks on a receptacle could indicate overheating and potential fire hazards. Reverse polarity refers to incorrect wiring, which can lead to shock hazards. Grounding is important for electrical safety, and correct voltage is necessary to prevent damage to electrical devices.