The No. 7 wire is used to _________.

The No. 7 wire is used to _________.

• A. Close the PUSH-TO-TEST circuit
• B. Open the main power switch
• C. Ground the system
• D. Provide 120V supply

Answer: (A)

The test is about how a test path is created in a control circuit. A push-to-test circuit only works when its two test contacts are connected so current can flow through the test path. The No. 7 wire serves as a jumper that bridges those two test contacts, providing a direct, low-resistance connection so the test can be completed without powering the rest of the system. It’s not used to supply power, ground the system, or open the main switch—those functions require other connections. So, the No. 7 wire is used to close the PUSH-TO-TEST circuit.

The test is about how a test path is created in a control circuit. A push-to-test circuit only works when its two test contacts are connected so current can flow through the test path. The No. 7 wire serves as a jumper that bridges those two test contacts, providing a direct, low-resistance connection so the test can be completed without powering the rest of the system. It’s not used to supply power, ground the system, or open the main switch—those functions require other connections. So, the No. 7 wire is used to close the PUSH-TO-TEST circuit.