Exam (elaborations)
Journeyman Electrician Exam 2022
Journeyman Electrician Exam 2022
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Journeyman Electrician Exam 2022An electromagnet can be switched on and off ANS:- And advantage of an
electromagnet over a permanent magnet is
Scatters light uniformly in all directions ANS:- An excellent diffuser surface is one
that
In a photovoltaic cell ANS:- Light is converted into electricity
Armature ANS:- The rotating part of a DC motor is known as
Fish tape ANS:- A device used to pull wires through a conduit is called
Approximately zero ANS:- In making a resistance test, remember that the resistance
of a short circuit is
Parallel ANS:- To increase current capacity, battery cells are connected in
10 ANS:- The hot resistance of an incandescent lamp is approximately how many
times it's cold resistance
Start measuring at the highest range ANS:- The proper way of measuring and
unknown voltage with a multi-tester is to
A charge ANS:- A capacitor stores what?
Paper ANS:- What has the lowest dielectric strength
Knife ANS:- 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
The contact resistance between the bare wire in the person at the point of contact
ANS:- If a bare live conductor is touched accidentally, the severity of the electric
shock is determined primarily by
The same as ANS:- The voltage per turn of the primary of a transformer is
________the voltage per turn of the secondary
Infinite ANS:- And open resister when checked with an ohmmeter reads
Lesser ANS:- The larger the diameter of a wire, the _____is it's resistance?
Above ANS:- Service heads and goosenecks in service entrance cable shall be what
point of attachment of the service drops to the building?
Moisture resistant and thermoplastic ANS:- Type TW conductor is what type?
Low permeability ANS:- Steel is hard to magnetize because of its
, Commutator ANS:- A repulsion motor is equipped with a
increase ANS:- When the temperature of a copper wire is raised, the resistance will
Starting ANS:- The capacitor in a capacitor-start induction-run AC motor is
connected in series with what winding?
Cover ANS:- Defined as the shortest distance measured between a point on the top
surface of any direct buried conductor, cable, conduit and a top surface of finish
grade
A battery ANS:- An ohmmeter consists of a meter movement in series with what?
Oil and soap ANS:- Greece is a lubricant that is basically a combination of what?
Open ANS:- The continuity of a coil of winding may be determined by measuring the
resistance of the coil. If the resistance measured is infinite, the coil winding is what?
SPDT ANS:- A three-way switch is equivalent to what kind of switch?
It makes the operation of each appliance independent with each other ANS:- The
main reason that electrical appliances are connected in parallel rather than series is?
Voltage ANS:- A step up transformer increases what?
Inductive ANS:- A circuit with a lagging current means the circuit is what?
0.4 ohms ANS:- If a conductor has a resistance of 0.2 ohms and the link is doubled,
the resistance becomes what?
Preventing a short circuit between conducting wires ANS:- Insulating materials have
the function of
Voltage source and a conductor ANS:- For current to flow the very basic circuit
requirements are
Pendant ANS:- A device or equipment which is suspended from overhead either by
means of a flexible cord carrying current, or otherwise is a?
The highest resistance has the highest voltage ANS:- In a series circuit with unequal
resistances
Recording ANS:- The kilowatt hour meter can be classified as what kind of
instrument?
Eddy current loss is reduced ANS:- Transformer cores are built up from laminations
rather than from solid metal so that what happens?
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