Originally Posted by
Gohomeleg123
Hi all,
I have an interview next week and I was reviewing some of the gouge questions. Some seem a little tricky/confusing by the way they are worded.
This question popped up..anyone know what the right answer is they are looking for?
10. When you are doing your preflight and your battery voltage reads zero, what is the case?
a. the voltage meter will always read zero when the main buses are unpowered.
b. the battery is dead and needs to be charged.
c. the battery will be charged once the engines start.
d. volts don't matter, it's amperage that is a better indication of a battery's condition.
Thanks for any help! If anyone else has any other advice I'd gladly take it.
The answer is A. On certain older aircraft that have actual round gauges for DC volts and amps, the volts are read off the battery and the amps are read off a DC bus. This of course assumes you have selected the gauges to read the battery and not a TR. The volts will read 0 until you connect the battery to the bus by turning the battery on.