Daily challengeSeptember 6, 2026
exam-readyAnswer hidden

C. Wiring Systems

An emergency lighting unit has a replacement battery installed. The charge indicator is on, but the unit has not been tested under its connected lamp load. What should happen before the repair is accepted?

Independent original practice. Not an official exam question, remembered exam item, or code-text substitute.

Free daily challenge

One 309A question. One clear explanation. Every day.

Make exam preparation a daily habit. After you answer, share the same answer-hidden challenge with another apprentice.

What to do next

One answer cannot show your weak areas.

Use the daily challenge to keep your study habit going. When you want a clearer picture, answer 10 free questions and look for topics that need more work.

  1. AnswerChoose before revealing the explanation.
  2. UnderstandRead why the right answer works.
  3. ContinueAnswer 10 free questions to spot repeated weak areas.

Every challenge is an original question written for this product and organized around published 309A competencies.

See how questions are written and reviewed

Daily challenge RSS feed

Follow the Daily Question in your RSS reader.

The feed includes the prompt and answer choices for the seven most recent challenges. Open a challenge and choose an answer before the explanation appears.

Open RSS FeedUseful for personal study feeds and instructor resource lists.

Daily reminder

Put one 309A question on your calendar each day.

Download a recurring 6:30 p.m. Toronto-time calendar reminder that opens the current free challenge. No email address or account is required.

Add Daily Calendar ReminderYou can remove the recurring event from your calendar at any time.