Electrical final exam COMPLETE QUESTIONS & SOLUTIONS
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Course
Master electrician license
Institution
Master Electrician License
An electrical conductor is an element with Electrons in its outer orbit - ANSWER Less than 4
Like charges - ANSWER repel
Carbon and Silicon are examples of ___ - ANSWER semiconductors
Which unit of electricity does the work in a circuit ? - ANSWER ampere (amp)
As temperature increases -...
Electrical final exam COMPLETE QUESTIONS &
SOLUTIONS
An electrical conductor is an element with Electrons in its outer orbit - ANSWER Less than 4
Like charges - ANSWER repel
Carbon and Silicon are examples of ___ - ANSWER semiconductors
Which unit of electricity does the work in a circuit ? - ANSWER ampere (amp)
As temperature increases - ANSWER The resistance of a conductor increases
The Is a unit of electrical pressure - ANSWER Volt
Tech A says a two wire variable resister is called a reosthat. Tech b says that a 3 wire variable resistor is
called a potentiometer. Which it's correct - ANSWER Both
Creating electricity by exerting a force on a crystal is called ___ - ANSWER piezoelectricity
The fact that a voltage can be created by exerting force on a crystal is used in which type of sensor -
ANSWER Knock Sensor (KS)
Pontentiometer a 3 wire variable resistance is used in which type of sensor? - ANSWER Throttle position
If an insulated wire rubbed through a part of the insulation and the wire conductor touched the steel
body of a vehicle, the type of failure would be called ________. - ANSWER Short to ground
, If two insulated wires were to melt together at the point where the copper conductors touched each
other, the type of failure would be called a(n) - ANSWER Short-to-voltage
If 12 volts are being applied to a resistance of 3 ohms, ________ amperes will flow. - ANSWER 4. 12/3 = 4
How many watts are consumed by a light bulb if 1.2 amperes are measured when 12 volts are applied -
ANSWER 14.4 watts. 1x12=14.4
How many watts are consumed by a starter motor if it draws 150 amperes at 10 volts - ANSWER 1,500
watts 150x10 = 1,500
High resistance in a electrical circuit can cause - ANSWER All of the above dim lights , slow motor and
clicking of relays and solenoids
If the voltage increases in a circuit, what happens to the current (amperes) if the resistance remains the
same? - ANSWER it increases
If 200 amperes flow from the positive terminal of a battery and operate the starter motor, how many
amperes will flow back to the negative terminal of the battery? - ANSWER 200 amperes
What is the symbol for voltage in calculations - ANSWER E
Which circuit failure is most likely to cause a fuse to blow - ANSWER Short to ground
The amperage in a series circuit is - ANSWER The same anywhere in the circuit
The sum of the voltage drops in a series circuit equals the ____ - ANSWER Source voltage
If the resistance and the voltage are known what is the formula for finding the current amps - ANSWER I
= E/R
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