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 the mains potential difference and frequency in the U.K?

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


Question 2. Which analogy is similar to a DC supply?

The waves on the sea moving up and down at random.
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.


Question 3. What is DC short for?

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


Question 4. Which analogy is similar to an AC supply?

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


Question 5. What is AC short for?

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


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