100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
HVAC Excellence - ELECTRICITY Exam questions and answers. $11.49   Add to cart
Quickly navigate to
Preview
  2.  
  3. Esco
  4.  
  5. Esco

Exam (elaborations)

HVAC Excellence - ELECTRICITY Exam questions and answers.
 6 views  0 purchase
  • Course
  • Esco
  • Institution
  • Esco

HVAC Excellence - ELECTRICITY Exam questions and answers.HVAC Excellence - ELECTRICITY Exam questions and answers.HVAC Excellence - ELECTRICITY Exam questions and answers.HVAC Excellence - ELECTRICITY Exam questions and answers.HVAC Excellence - ELECTRICITY Exam questions and answers.HVAC Excellenc...

[Show more]

Preview 2 out of 7  pages

Document information

  • August 25, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • hvac excellence electricity exam questions and a

Written for

  • Esco
  • Esco

Seller

avatar-seller
Wisdoms

Reviews received

Content preview

HVAC Excellence - ELECTRICITY Exam questions
and answers



Current ;flow ;is: ;- ;correct ;Answers ;✔✔ ;-The ;flow ;of ;electrons ;in ;the ;circuit.

Impedance ;is: ;- ;correct ;Answers ;✔✔ ;-Opposition ;to ;alternating ;current ;flow.

Like ;charges; ;- ;correct ;Answers ;✔✔ ;-repel ;each ;other.

Any ;material ;that ;will ;readily ;release ;electrons ;is ;called; ;- ;correct ;Answers ;✔✔ ;-A ;conductor

The ;symbol ;for ;current ;is; ;- ;correct ;Answers ;✔✔ ;-I

Which ;of ;the ;following ;materials ;would ;be ;best ;suited ;for ;use ;as ;a ;semi-
conductor? ;- ;correct ;Answers ;✔✔ ;-silicon

The ;safety ;ground ;conductor ;is ;usually ;color ;coded; ;- ;correct ;Answers ;✔✔ ;-green ;or ;bare.

An ;electron ;has; ;- ;correct ;Answers ;✔✔ ;-a ;negative ;charge.

Resistance ;is: ;- ;correct ;Answers ;✔✔ ;-Opposition ;to ;current ;flow.

How ;many ;watts ;of ;power ;are ;used ;by ;a ;heater ;operating ;at ;240 ;volts ;and ;drawing ;5 ;amps? ;- ;corr
ect ;Answers ;✔✔ ;-1200 ;watts

Which ;of ;the ;following ;meters ;must ;use ;its ;internal ;power ;to ;check ;a ;load ;or ;circuit? ;- ;correct ;Ans
wers ;✔✔ ;-Ohmmeter

In ;electrical ;wiring, ;a ;black ;colored ;wire ;in ;an ;alternating ;current ;circuit ;usually ;indicates; ;- ;correct ;
Answers ;✔✔ ;-the ;hot ;conductor.

Fuses ;are ;sized ;by: ;- ;correct ;Answers ;✔✔ ;-Volts ;& ;Amps

What ;would ;be ;the ;result, ;if ;a ;24 ;volt, ;20-
ohm ;low ;voltage ;conta ;ctor ;coil ;were ;wired ;in ;series ;with ;a ;24 ;volt, ;200-
ohm ;control ;relay ;coil? ;- ;correct ;Answers ;✔✔ ;-Only ;the ;control ;relay ;would ;operate.

Three ;defrost ;heaters, ;each ;15 ;ohms ;are ;wired ;in ;parallel ;to ;a ;120 ;volt ;power ;supply. ;How ;many ;w
atts ;of ;power ;will ;be ;used? ;- ;correct ;Answers ;✔✔ ;-2880 ;Watts

, Which ;of ;the ;following ;is ;generally ;considered ;to ;be ;within ;the ;maximum ;allowable ;
(plus ;or ;minus) ;supply ;voltage ;variation? ;- ;correct ;Answers ;✔✔ ;-5%

Capacitors ;are ;rated ;in ;- ;correct ;Answers ;✔✔ ;-Microfarads ;& ;Volts.

When ;testing ;a ;capacitor ;with ;an ;analog ;or ;digital ;ohmmeter, ;the ;meter ;should; ;- ;correct ;Answers ;
✔✔ ;-measure ;low ;resistance ;then ;return ;to ;high ;reading.

What ;is ;the ;term ;used ;to ;describe ;the ;output ;side ;of ;a ;transformer? ;- ;correct ;Answers ;✔✔ ;-
Secondary ;side.

One ;horsepower ;is ;equal ;to ;__________ ;watts. ;- ;correct ;Answers ;✔✔ ;-746

How ;much ;resistance ;must ;be ;placed ;in ;a ;120 ;volt ;circuit ;in ;order ;to ;limit ;the ;current ;to ;2 ;amps? ;-
;correct ;Answers ;✔✔ ;-60 ;Ohms


A ;parallel ;circuit ;contains ;a ;18 ;ohm ;and ;a ;9 ;ohm ;resistor. ;The ;total ;resistance ;equals; ;- ;correct ;Ans
wers ;✔✔ ;-6 ;ohms.

In ;a ;series ;circuit, ;the ;voltage ;drop ;across ;each ;resistance ;(load) ;will. ;- ;correct ;Answers ;✔✔ ;-
add ;up ;to ;equal ;the ;source ;voltage.

The ;total ;resistance ;of ;a ;parallel ;circuit ;will ;be; ;- ;correct ;Answers ;✔✔ ;-
less ;than ;the ;smallest ;resistance.

Which ;of ;the ;following ;statements ;about ;current ;is ;true? ;- ;correct ;Answers ;✔✔ ;-
Current ;flow ;will ;increase ;when ;voltage ;increases.

When ;resistors ;are ;wired ;in ;parallel; ;- ;correct ;Answers ;✔✔ ;-
the ;voltage ;drop ;across ;each ;resistor ;will ;be ;the ;same ;as ;the ;applied ;source

Which ;of ;the ;following ;is ;equal ;to ;2.1KW? ;- ;correct ;Answers ;✔✔ ;-2,100 ;Watts

Which ;of ;the ;following ;is ;equal ;to ;100 ;milliamps? ;- ;correct ;Answers ;✔✔ ;-0.10 ;amperes

A ;capacitor ;analyzer ;is ;designed ;to ;read; ;- ;correct ;Answers ;✔✔ ;-
the ;capacitive ;resistance ;of ;a ;capacitor.

On ;an ;electronic ;oil ;safety ;switch ;what ;changes ;the ;pressure ;singal ;to ;electrical ;signal? ;- ;correct ;An
swers ;✔✔ ;-Transducer.

The ;electric ;meter ;on ;a ;house ;measures ;the ;______________ ;passing ;th ;rough ;it. ;- ;correct ;Answers
;✔✔ ;-wattage


A ;three ;phase ;load ;requires ;a ;minimum ;of; ;- ;correct ;Answers ;✔✔ ;-three ;supply ;lines.

Which ;of ;the ;following ;is ;the ;correct ;formula ;for ;determining ;wattage ;in ;an ;electrical ;circuit? ;- ;corr
ect ;Answers ;✔✔ ;-W ;= ;E ;times ;I

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 Wisdoms. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79271 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$11.49
  • (0)
  Add to cart