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Two mistakes in General Q&A booklet

Mar 10th 2012, 19:59

KE6MDN

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
There are two mistakes in the Fourth Edition of the General Class Q&A booklet:

1) In the answer to question G5B12, the argument of the square root should be 1200 x 50, not 1200/50. Then answer B is correct.

2) in G7A03, it is indicated that the correct answer is D). The explanation of the issue is correct and it should point to answer C).

Thanks for your attention.

KE6MDN/AG
Mar 11th 2012, 02:42

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0

Thanks for your comments. Congratulations on the upgrade to General!

http://www.arrl.org/general-class-license-manual
Here is the page were we post corrections to the study books online--you are correct about G5B12.

However, the current question pool lists (D) as the correct answer.
http://www.arrl.org/question-pools

Zack Lau W1VT
ARRL Senior Lab Engineer

Mar 12th 2012, 01:21

KE6MDN

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
Hello Zack: It appears that the link you gave me is for posting corrections to the study guide, not to the General Q&A booklet, so I am not sure if you are suggesting that I should find a way to correct the booklet or the ARRL will do that.
On the G7A03, I was not clear in my description of the error. The booklet does indeed lists (D) as the correct answer, but it should be (C). If you read the explanation text and/or do a bit of thinking, you will see that (D) is wrong and (C) is right. Thanks for your attention.
Jorge Llacer, KE6MDN/AG
Mar 12th 2012, 14:27

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
http://www.arrl.org/files/file/General%20Class%20License%20Manual/General%20Class%20License%20Manual%20Errata%20and%20Corrections%20-%201%20February%202012.pdf

This PDF document on that page has corrections to both the Q&A booklet and the study guide.

The first two sentences of the explanation talk about the center-tapped full wave rectifier--the circuit that matches the answer (C). But, the circuit the question refers to is the full wave bridge, which has answer (D). This is explained in the 3rd and last sentence of the explanation.

Zack Lau W1VT
ARRL Senior Lab Engineer
Mar 12th 2012, 22:18

KE6MDN

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
Hello Zack: You are right, I became confused when studying the issue since two different circuits are included in the discussion. Thanks, now I am at peace with answer D.

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