Exam (elaborations)
Electrical Employment Ready (Questions And Answers)
- Course
- Institution
Electrical Employment Ready (Questions And Answers)
[Show more]
Content preview
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Zendaya. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67866 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now