[DARARepeater] Thursday Night Group

[George]

Techfest - did you help 

HF - UHF Antenna Analyzer UPDATE  

Projects

** License Exam Questions of the week

The Thursday Night Group will meet

Thursday, Feb 21 at 7:00 pm at the DARA Clubhouse.

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Things this week:  

 

1.        Techfest - did you help

Were you one of DARA volunteers that helped last weekend?

2.        HF - UHF Antenna Analyzer UPDATE  

Phil is working on the software to match the new board

3.        ** License Exam Questions of the week

One question is drawn from each of the three question pools. Steve, AE8AT,
is providing these questions.  Thanks Steve

 

Answers are at the end of this email.

 

We received a question regarding the strange mix of letters and numbers that
begin each question.  Every exam question has a unique combination of
letter-number-letter-number.  The first letter is a T, G, or E to identify
the question pool: Technician, General, or Extra.  Next is a single number
representing the category, for example, category zero is safety in all three
exam pools.  The first letter-number pair is called the "sub-element".   The
second letter is a "group" containing related questions.  Example,
sub-element G8 is Signals and Emissions, with group C of that sub-element
being Digital Emission Modes.  The questions are numbered sequentially:
G8C01, G8C02, and so forth always with a 2-digit number at the end.  The
question identity is included in case of a typo or some "help" from
autocorrect obscures either the question or the answer.  

 

Alessandro Giuseppe Antonio Anastasio Volta, born 18 February in 1745, Como,
Italy.  Invented the battery.  The unit of electrical potential, the Volt,
is named in his honor. 

 

T6A11 Which of the following battery types is not rechargeable?

A. Nickel-cadmium

B. Carbon-zinc

C. Lead-acid

D. Lithium-ion

 

G4E10 What is the reason that a series diode is connected between a solar
panel and a storage battery that is being charged by the panel?

A. The diode serves to regulate the charging voltage to prevent overcharge

B. The diode prevents self-discharge of the battery though the panel during
times of low or no illumination

C. The diode limits the current flowing from the panel to a safe value

D. The diode greatly increases the efficiency during times of high
illumination

 

E7D09 What is the main reason to use a charge controller with a solar power
system?

A. Prevention of battery undercharge

B. Control of electrolyte levels during battery discharge

C. Prevention of battery damage due to overcharge

D. Matching of day and night charge rate

 

4.        Projects

Bring something to work on.   What you building?

DARA Home Brew night May 3rd. so get busy!!

For more information about B-Road Thursday Evening Group Projects.

Go to W8BI homepage ( <http://www.w8bi.org> http://www.w8bi.org) under
Education, Thursday Group.

Or

Go to ( <https://sites.google.com/site/darathursdaynite/>
https://sites.google.com/site/darathursdaynite)

There is a lot of information on this web site with additional content.

Hope to see you on Thursday evening's.

Everyone is invited!!! 

 

 

Answers:

T6A11 = B.

G4E10 = B.  

E7D09 = C.

 

Quiz 28

 

 



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