143 S13 Lables

What is the primary purpose of wire identification and labeling?

• A. Reduce insulation breakdown
• B. Distinguish between individual wires in a circuit
• C. Increase wire flexibility
• D. Prevent corrosion

Which of the following is a method of wire identification?

• A. Full cable insulation colors
• B. Numbered sleeves
• C. Written labels
• D. All of the above

Why is wire identification and labeling important during maintenance?

• A. It prevents insulation breakdown
• B. It helps trace and track circuits
• C. It makes wires more durable
• D. It reduces electrical resistance

What color coding standard is commonly used in Europe for wire identification?

• A. NEC standards
• B. IEC standards
• C. BS7671
• D. IEEE standards

In the American color coding system, what color is used for neutral wires?

• A. Red
• B. Black
• C. White
• D. Green

What does wire numbering help to differentiate in a circuit?

• A. Wire sizes
• B. Wire insulation materials
• C. Individual wires
• D. Wire lengths

What is the wire segment letter used for in wire labeling?

• A. To identify the wire size
• B. To differentiate between conductor segments in a circuit
• C. To indicate the insulation type
• D. To mark the installation date

What does the wire size number identify?

• A. The length of the wire
• B. The color of the wire
• C. The gauge (AWG) of the wire
• D. The manufacturer of the wire

Which system uses colored sleeves as a method for wire identification?

• A. NEC standards
• B. European standards
• C. American standards
• D. All of the above

Why might color-coded sleeving be used instead of labels?

• A. To reduce the cost of labeling
• B. To prevent the wire from bending
• C. Because the labels may be partially out of view
• D. To increase the electrical resistance of the wire