Re: HELP!! Need answers for test!!!

["Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx>]

Watt?
:-)




"petem" <petem001@xxxxxxxxx> wrote in message
news:FDKnf.36519$yw3.854654@xxxxxxxxxxxxxxxxxxxxxx
| can I modify the question to what it should be?
| as a teacher at night I can see ,whets the problem
|
| in line..
|
| "Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx> a écrit dans le message
de
| news: N%Jnf.57$mE5.272@xxxxxxxxxxxxxxxxxx
| > 1- Optimum INDUCED voltage ????
|
|
| > | "Gator" <karlwithgator@xxxxxxxxx> wrote in message
| > | news:1134225788.665550.231080@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > | > 1. What is the optimum induced ac voltage on alarm
| > | > circuits?a)2.0,b)1.0,c)0.5 or d)0.1 volts?
|
| I think the question should be:
| what induced voltage the panel version X brand Y that we have studied will
| tolerate at its input,before giving false alarm or trouble?
|
|
| > | >
| > | > 2.What is the unit of measure for attenuation for a cable?a)volts,
| > | > b)decilels, c)Amps or d)Watts?
|
| and this one:
| whats the unit of measure for attenuation?
|
|
| > | >
| > | > 3.A detector installed in a residence that would meet U.L.
| > requirements
| > | > would be...a)Extent 1, b)Extent 2, c)Basic, or d)Perimeter?
| > | >
| this one is better?
| Under the code X of country Y that we studied,A detector installed in a
| residence that would meet U.L. requirements would be?
|
| > | > 4.During troubleshooting, the voltage should be checked...a)under
max
| > | > load, b)Normal operation, c)switches in test or d)switches open?
| > | >
| or this would make sense....
| 4.During troubleshooting, of the power supply of the panel X,the voltage
| should be checked...
|
| > | >
| > | > 5.What type of branch circuit should be avoided for powering
security
| > | > systems...a)G.F.I., b)lighting, c)Gen Purpose or d)Laundry room?
| > | >
| Humm this one is special,and need a total workout...
| Where should we never plug our transfo?(you can select more then one
answer)
|
| > | >
| > | >
| > | > 6.To what height above the floor must wiring be protected...6,7,8 or
| > 10
| > | > feet?
| > | >
|
| Another thing about local electrical code..
|
|
| > | >
| > | > 7.What is the minimum temp variance needed to trip a passive
infrared
| > | > motion detector...1,2,3 or 4 degrees?
| > | >
|
| What is the minimum temp variance needed to trip a passive infrared motion
| detector,model X Brand Y
|
| > | >
| > | > 8.In a 12 volt system, what voltage should be read across a closed
| > | > switch with a 6k ohm resistor?
| > | >
| And the last
| In a 12 volt system, what voltage should be read across a closed switch
with
| a 6k ohm resistor,if the sensing circuit use the same impedance,as the end
| of line resistor?
|
| And the answer cannot even be clear,cause if we read the last question
| (before or after the modification)
|
| "what voltage should be read across a closed switch" if the switch is
close
| and we mesure the voltage across it..the answer is?  NADA nothing,zip
| ,zero..the damn switch is closed...............
|
| those question are so badly form that even someone speaking another
language
| (like me) can point that total unusefuleness of it..
|
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