Basic Questions
Ohms are a measure of electrical circuit current flow.
False
Corroded terminals would cause high resistance in a closed electrical circuit.
True
When using an ohmmeter, the circuit being tested should have power applied to it.
False
How many electrons does the element silicon have in its outer shell?
4
Copper is a great insulator of electricity.
False
What is the moving electrical component in a solenoid known as?
The armature.
According to Watt’s Law, if current flow through an electrical circuit increases, what is likely to happen to the power consumed? It
increases
A wire making electrical contact with the body of a vehicle would be an example of ________________.
a short to ground
Resistance to current flow is measured in ______.
Ohms
A break in a circuit that causes a loss of continuity is called a:
Open
If you add up all the voltage drops (Kirchhoff’s Second Law) in any closed electrical circuit, what should they add up to?
source voltage.
Which of the following components is used in a truck electrical circuit to convert electromagnetic energy into mechanical movement?
a solenoid.
Which of the following elements could be described as being electrically inert?
Neon
If an electrical connection in a closed electrical circuit heats up, which of the following would be the more likely cause?
Corroded connectors.
According to Ohm’s Law, what should happen to current flow if circuit resistance increases and voltage remains the same? It:
decreases
Which type of circuit offers only one path for current flow?
Series
Which of the following is a measure of charge differential?
Voltage
When a dead short occurs, which of the following would be true?
Current flow increases
Which of the following factors will INCREASE the resistance of the conductor?
Decreasing the diameter of the conductor.
A circuit protection device that opens when overloaded and then automatically resets is known as a
cycling circuit breaker