Electrical T1
The maximum resistance of any bonding strap cannot be exceeded by?
.003
The maximum resistance of a ground point cannot be exceeded by?
.005 ohms
A 500 ohm, 5% resister for oils have a resistance value of
475 to 525 ohms
A resistor marked with the color bands BLUE, ORANGE, GOLD, and GOLD would have resistance of
6.3 ohms +_ 5%
A resistor marked with color bands, gray, green, gold, and silver would have the resistance of?
8.5 ohms +_ 10%
What is another name for a parallel circuit
A current divider circuit
The minimum requirement for a complete electrical circuit is?
A power source, a load, and a current path
What is another name for a series circuit?
A voltage divider circuit
Which of the following will affect the life of a magnet
A.C
What does an electrical relay do?
Allows you to control a large current with a small current from another circuit
An exceptionally good permanent magnet can be manufactured with which of the following?
Cobalt, aluminum, nickel, and iron ALNICO
Deviation is defined as
Compass error due to magnetic flux lines from the aircrafts electrical system
Resistance of a conductor will increase with which of the following changes to the cross sectional area and length of a conductor?
Cross sectionals area is decreased, length is decreased
What electrical value is constant in a series circuit?
Current
What subatomic particle has a negative charge and a small mass
Electron
Which of the following describes electron flow theory
Electrons moving from negative to positive
Bar magnets should be stored in which of the following manners?
In pairs with north and south poles together
In any D.C. Circuit, current and resistances are
Inversely proportional
Residual magnetism is
Magnetism which remains in the core of an electromagnet after the operating circuit has been opened
What is the name given to one line of flux?
Maxwell
A substance with an excess of electrons is considered to be in what electrical state?
Negative
Resistors are rated in
Ohms and power (W)
Phantom resistance, used in figuring complex circuits are what?
Only exist mathematically etc
What electrical quantity adds in all types of circuits, series, parallel, and complex
Power in watts
When two resistances are in series what is true?
Resistance goes up, current is equal through each, voltage will drop at each R, and add up V
What are the best to worst conductor materials in order?
Silver, copper, gold, aluminum
A magnetic shield or screen used to protect a delicate instrument should be made of which of the following materials?
Soft iron
The definition of permeability would relate to which of the following?
The ability of a material to allow lines of flux to travel through it, unnapposed
Which component in a series circuit will drop the most voltage
The component with the greatest resistance value
Which component in a parallel circuit will have the most current flow
The component with the smallest resistance value
What is the main differenve between conductors , semi conductors, and insulators
The number of free valence electrons
According to kirchhoffs voltage law for series circuits, which is true?
The sum of all voltage drops will be equal to the applied or total voltage
What electrical value is constant in a parallel circuit?
Voltage
What are the three quantities in joules law for power
Voltage, current and power in watts
What are the three quantities in ohms law
Voltage, current and resistance
Which of the following terms has the same meaning as "difference of potential"
Voltage, electromotive force
What is one function of an electrical solenoid?
When operating correctly, the core will move when activated
What would the resistance value of a carbon resistor marked with a red, green, and yellow band be?
250,000 ohms +- 50,000 ohms
When two resistances are in parallel, what is true?
The voltage across both resistances is always the same
How do "like" and "unlike charges react to one another according to the fundamental law of electrostatics
Unlike charges attract each other, like charges repel each other