In the hardwired relay control circuit shown,when the switch is closed,CR coil is:
A)energized,and the red and green lights are both on.
B)de-energized,the red light is off,and the green light is on.
C)energized,the red light is on,and the green light is off.
D)energized,the red light is off,and the green light is on.

Question

In the hardwired relay control circuit shown,when the switch is closed,CR coil is: 
A)energized,and the red and green lights are both on. 
B)de-energized,the red light is off,and the green light is on. 
C)energized,the red light is on,and the green light is off. 
D)energized,the red light is off,and the green light is on.

Quizplus · Accepted Answer

When the switch is closed, current flows through the switch and CR coil, energizing the coil. This causes the normally open (NO) contacts of the relay to close, completing the circuit for the red light and turning it on. However, the normally closed (NC) contacts of the relay open, breaking the circuit for the green light and turning it off. Therefore, the coil is energized, the red light is on, and the green light is off.

In the Hardwired Relay Control Circuit Shown,when the Switch Is