Snapquiz - AC vs DC

This is the Snapquiz on AC vs DC. Click here or use the embedded video if you haven't watched the lesson yet.


Question 1. What is DC short for?

Dangerous Current.
Direct Current.
Dilute Current.
Device Current.


Question 2. Which analogy is similar to an AC supply?

A river flowing in the same direction all the time.
The tide regularly coming in and going back out again.
The wind blowing in different directions every day.
The waves on the sea moving up and down at random.


Question 3. What is the mains potential difference and frequency in the U.K?

110V, 60Hz.
230V, 60Hz.
110V, 50Hz.
230V, 50Hz.


Question 4. If an AC supply flows back and forth 3,000 times per minute what is its frequency?

180,000Hz.
50Hz.
60Hz.
3,000Hz.


Question 5. What is AC short for?

Actuating Current.
Additional Current.
Actual Current.
Alternating Current.


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