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Electrical Employment Ready (Questions And Answers)
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Electrical Employment Ready (Questions And Answers)
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Electrical Employment Ready (Questions And Answers)The rotor turns because of Right Ans - The repulsion and attraction
between the poles of the rotor and the stator
The safety ground is usually color-coded Right Ans - Green
What equals 21.8 KW Right Ans - 21800 Watts
With the motor running at full load the contact between T1 and L1 indicates
no voltage this is an indicator of Right Ans - This shows that the contacts
are good
Impedance is Right Ans - Opposition to alternating current flow
1 HP equals how many watts? Right Ans - 746 watts
Symbol for current Right Ans - I (amps)
Which is the correct formula for determining wattage in electrical circuit
Right Ans - P equals E times I
ECM motor speed is controlled by: Right Ans - Pulses of DC power sent by
the control module to the windings.
The three essential requirements for a useful electric circuit are Right Ans -
A power source a pass for current flow and an electrical load
The typical voltage of a thermcouple Right Ans - 30 MV/DC
Name a type of inductive load Right Ans - A three phase motor
True or false /the current flows through a conductor does not produce a
magnetic field unless the wire is coiled Right Ans - False
Three phase load requires a minimum of Right Ans - Three legs of power
In an AC capacitive circuit Right Ans - Current leads voltage
, When replacing fuses be sure to match Right Ans - The voltage amperage
instantaneous current and class
Variable frequency drives reduce the speed of AC motors by Right Ans -
Controlling the frequency of the power to the motor
A heat pump defrost control must do three things Right Ans - Turn on
auxiliary heat turn off the condenser fan motor and shift the reversing valve
from heat to cool
Hey normally open set a really contacts will close when Right Ans - Power
is applied to the relay coil
When hopscotch troubleshooting follow the schematic and move the meter
lead on the control side of the circuit from one control to the next checking the
voltage in and out of the control the voltage will be ________ immediately after
the control that is opening the circuit Right Ans - 0 V
Any material that will readily release electrons is called Right Ans -
conductor
In a basic electric circuit with a steady potential when resistance increases
Right Ans - Your current decreases
A 240 V three wire circuit can be divided into two 120 V single-faced circuits
or one 240 V single phase circuit true or false Right Ans - True
Contact her contacts are rated for the maximum amperage for different
voltage is an resistive loads true or false Right Ans - True
A transformer has 1000 turns of wire on the primary and 200 turns of wire on
the secondary the primary voltage is 120 V what would be the secondary
voltage Right Ans - 24 V
current flow is Right Ans - The flow of electrons in a circuit
Why are capacitors rated higher voltage than the unit line voltage Right
Ans - Charging and discharging in series with an inductive load subjects them
to high voltage
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