Understanding and Applying Article 110 of the NEC II Lesson 4: Questions and Answers | Latest Version | 2024/2025 | Correct & Verified

Understanding and Applying Article 110 of the NEC II Lesson 4: Questions and Answers | Latest Version | 2024/2025 | Correct & Verified What is the minimum working clearance required in front of electrical equipment rated at 600 volts or less? A. 24 inches B. 30 inches C. 36 inches D. 48 inches Which of the following factors determines the required working space around electrical equipment? A. The voltage of the equipment B. The depth of the equipment C. The type of overcurrent protection D. All of the above What is the minimum width of working space required in front of electrical equipment? 2 A. 24 inches B. 30 inches C. 36 inches D. 48 inches For electrical equipment operating at 120 volts, what is the minimum headroom clearance required? A. 5 feet B. 6 feet 6 inches C. 7 feet D. 8 feet What is required for all electrical equipment to ensure safety and durability? A. Regular maintenance B. Proper labeling C. Installation according to manufacturer instructions D. All of the above 3 When electrical equipment is installed in a wet location, what type of enclosure is required? A. Dustproof B. Waterproof C. Explosion-proof D. Vented What is the maximum allowable slope of a working platform for electrical installations? A. 10 degrees B. 20 degrees C. 30 degrees D. 45 degrees What is the purpose of guarding live parts in electrical equipment? A. To improve aesthetics B. To prevent accidental contact C. To reduce noise D. To save space 4 What is the minimum working clearance required for electrical equipment rated over 600 volts? A. 3 feet B. 4 feet C. 6 feet D. 8 feet Which of the following must be included on the label of electrical equipment? A. Voltage rating B. Current rating C. Manufacturer information D. All of the above What type of markings must be used for identifying disconnecting means? A. Handwritten B. Removable stickers C. Durable and legible markings