Vol.2 Flashcards
Matter is any substance that has mass and what?
occupies space
What are atoms made out of?
Protons, Neutrons, Electrons
Electrons can be released from their outer orbit by heat, chemical action, and changing magnetic fields, but not by what?
cold
What is the electrical pressure that causes electrons to flow through the conductor called?
electromotive force
If 24 volts is applied through a total resistance of 6 ohms in a series circuit, what would the amperage be?
4 amps
A permanent magnet is produced from a material with what?
high reluctance and low permeability
What happens to soft iron as it’s brought close to a permanent magnet?
it is magnetized
If the current flow through an electromagnet is greater, then what is also greater?
Strength
What is current flow in most aircraft circuits controlled by?
Switches
The majority of aircraft circuit protection devices are normally located where?
In the aircraft cabin
What term describes current that reverses it’s direction at regularly recurring intervals?
Alternating
What are the methods used to cool brushless alternating current generators?
Engine oil and blast air
What is the approximate output of the CSD used to drive a 60/80 kilovolt ampere generator?
8,000 rpm
When does the Underspeed Switch on the 60/80 kilovolt generator CSD actuate?
At 365 Hz
What supplies rotary power to the input gear of the constant speed drive?
Accessory gearbox
