For the programmed timer circuit shown,the pilot light should come on:
A)as soon as the switch is closed.
B)before the switch is closed.
C)for 15 seconds after the switch is opened.
D)both a and c.

Question

For the programmed timer circuit shown,the pilot light should come on: 
A)as soon as the switch is closed. 
B)before the switch is closed. 
C)for 15 seconds after the switch is opened. 
D)both a and c.

Quizplus · Accepted Answer

The circuit is designed so that as soon as the switch is closed, power flows to the timer and the pilot light. The timer then counts down for 15 seconds before opening the switch to turn off the pilot light. Therefore, the pilot light should come on as soon as the switch is closed (choice A) and should stay on for 15 seconds after the switch is opened (choice C). Therefore, the best choice is D (both A and C are correct).

For the Programmed Timer Circuit Shown,the Pilot Light Should Come