HVAC 102 BASIC ELECTRICITY FINAL EXAM Questions And Answers 100% Pass
7 views 0 purchase
Course
HVAC
Institution
HVAC
HVAC 102 BASIC ELECTRICITY FINAL
EXAM Questions And Answers 100% Pass
1. Which can replace a 220 volt 20 MFD capacitor - answerD. None of the above (All options
don't make sense) (microfarads can't differ from replacement?)
2. When hooking up a transformer that has multiple primary leads for di...
HVAC 102 BASIC ELECTRICITY FINAL
EXAM Questions And Answers 100% Pass
1. Which can replace a 220 volt 20 MFD capacitor - answer✔D. None of the above (All options
don't make sense) (microfarads can't differ from replacement?)
2. When hooking up a transformer that has multiple primary leads for different voltages the
unused leads would be ________. - answer✔capped off with wire buts individually. Preventing
shorts
3. If a circuit breaker or fuse trips immediately upon power, most likely________ -
answer✔direct short to ground
4. When replacing a half horse motor with another half horse motor _________ - answer✔check
the amp draw and speed of the motor
WHEN RUNNING A 208-230v motor ________ - answer✔A. should be 208 - 230 volts
6. The reason for having a resistor solder to a start capacitor terminal is so _________ -
answer✔It will bleed off the wattage and keep the motor from workin too hard
7. The purpose of a megohmmeter is to________. - answer✔can help to find places in the
windings where the insulation is getting weak
The biggest advantage of an ECM motor is that _______ - answer✔It can change its speed in
response to what it senses in the system.
A split phase motor has a ____ winding and a _____ winding. - answer✔Start, run
The Back EMF of a motor is ________ - answer✔all the above (induced in start winding,
voltage is higher than applied voltage, used to operate a potential relay
A split phase motor can use a ______ to energize and de energize The start winding -
answer✔Centrifugal switch
A current magnetic relay (CMR ) opens and closes it's contacts based on ________. - answer✔D.
Current in the run winding
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 Brightstars. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
