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. Which analogy is similar to a DC supply?

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


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

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


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

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


Question 4. Which type of device is used to step up or step down an AC supply?

A transcriber.
A transducer.
A transformer.
A transmitter.


Question 5. What is AC short for?

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


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