AS112 - Homework - Day 2 Flashcards
When an aircraft is fueled, it should be electrically connected to the fuel truck and to the ground to prevent a spark caused by an accumulation of ___ electricity on the aircraft surface.
static
A body having an accumulation of electrons on its surface is said to have a ____.
negative
Like charges ____ each other.Unlike charges _____ each other.
Answer 1:
repel
Answer 2:
attract
Static dischargers on an aircraft control surface provide sharp points from which a static charge can be dissipated from the control surface into the
air
Flexible metal braids called _____ straps connect the control surfaces to the aircraft structure to prevent the buildup of static charges.
Answer 1:
bonding
The ease with which lines of magnetic flux can pass through a material is known as a _________ material’s .
Answer 1:
permeability
is the opposition to the flow of magnetic force.
reluctance
One line of magnetic flux is called a .
Maxwell
One _____ represents a magnetic flux density of one maxwell per square centimeter.
gauss
is the ability of a material to retain magnetism after a magnetizing force is removed.
Answer 1:
retentivity
______ magnetism is the magnetism remaining in a material after the magnetizing force has been removed.
residual
The lines of magnetic flux are considered to leave the [ Select ] pole of a magnet and enter at the [ Select ] pole.
Answer 1:
north
Answer 2:
south
The strength of an electromagnet is determined by the
[ Select ] and by the
[ Select ] flowing through it.
Answer 1:
number of turns
Answer 2:
amount of current
Using a soft iron core in an electromagnet increases its strength because it ________ the lines of flux.
concentrates
There are two types of electromagnets used in practical applications, those having ______ cores and those having ______cores. (alphabetical)
Answer 1:
fixed
Answer 2:
movable
