Unit 5 Flashcards
(14 cards)
A complete path through which electricity can flow
Electrical Circuit
An unbroken circuit where electrons flow in a complete uninterrupted path
Closed Circuit
A circuit whose path has been broken, making electrons unable to comeplete the path
Open Circuit
When electrons follow a shorter path then intended by design
Short Circuit
What form of electrical current periodically reverses direction?
Alternating Current
What form of electrical current flows only in one direction?
Direct Current
Most large aircrafts use what kind of current and why?
Alternating Current; It is a stable and regulated power source
Direct currents power what kind of systems?
Critical systems
What does the Transformer-Rectifier do?
Transforms AC voltage into DC voltage
What type of battery usesa reaction between a conductive metal and liquid to produce current and is also like a car battery?
Lead Acid Battery
What type of battery uses nickel and cadmium as electrodes and offers higher currents with lighter weight?
Nickel-Cadmium (NiCad) Battery
Which bus receives power from the T/R, then distributes the power to systems or components?
Main DC Bus
Which bus receives power from 2 sources, the T/R and the aircraft battery, and is used for power loss emergencies?
Emergency DC Bus
If the current flow exceeds a breaker’s rating, the breaker “trips” therefor the circuit…
becomes open
