Journeyman Electrician Exam Practice Questions and
Answers
And advantage of an electromagnet over a permanent magnet is
An electromagnet can be switched on and off
An excellent diffuser surface is one that
Scatters light uniformly in all directions
Light is converted into electricity
In a photovoltaic cell
The rotating part of a DC motor is known as
Armature
A device used to pull wires through a conduit is called
Fish tape
In making a resistance test, remember that the resistance of a short circuit is
Approximately zero
To increase current capacity, battery cells are connected in
Parallel
The hot resistance of an incandescent lamp is approximately how many times it's cold
resistance
10
The proper way of measuring and unknown voltage with a multi-tester is to
Start measuring at the highest range
A capacitor stores what?
A charge
What has the lowest dielectric strength
Paper
A form of air switch in which the moving element is a hinged blade wedge between
stationary contact blades when closed is a what switch
Knife
If a bare live conductor is touched accidentally, the severity of the electric shock is
determined primarily by
The contact resistance between the bare wire in the person at the point of contact
The voltage per turn of the primary of a transformer is ________the voltage per turn of
the secondary
The same as
And open resister when checked with an ohmmeter reads
Infinite
The larger the diameter of a wire, the _____is it's resistance?
Lesser
Service heads and goosenecks in service entrance cable shall be what point of
attachment of the service drops to the building?
Above
Type TW conductor is what type?
Moisture resistant and thermoplastic
Steel is hard to magnetize because of its
Answers
And advantage of an electromagnet over a permanent magnet is
An electromagnet can be switched on and off
An excellent diffuser surface is one that
Scatters light uniformly in all directions
Light is converted into electricity
In a photovoltaic cell
The rotating part of a DC motor is known as
Armature
A device used to pull wires through a conduit is called
Fish tape
In making a resistance test, remember that the resistance of a short circuit is
Approximately zero
To increase current capacity, battery cells are connected in
Parallel
The hot resistance of an incandescent lamp is approximately how many times it's cold
resistance
10
The proper way of measuring and unknown voltage with a multi-tester is to
Start measuring at the highest range
A capacitor stores what?
A charge
What has the lowest dielectric strength
Paper
A form of air switch in which the moving element is a hinged blade wedge between
stationary contact blades when closed is a what switch
Knife
If a bare live conductor is touched accidentally, the severity of the electric shock is
determined primarily by
The contact resistance between the bare wire in the person at the point of contact
The voltage per turn of the primary of a transformer is ________the voltage per turn of
the secondary
The same as
And open resister when checked with an ohmmeter reads
Infinite
The larger the diameter of a wire, the _____is it's resistance?
Lesser
Service heads and goosenecks in service entrance cable shall be what point of
attachment of the service drops to the building?
Above
Type TW conductor is what type?
Moisture resistant and thermoplastic
Steel is hard to magnetize because of its
