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Maintenance Questions and Answers (Q&A)

W. Wright, Biology student
Answered: Mar 07, 2019

There are 12 inches in a foot, since the tiles are 4 inches on each side. It will take 3 tiles to get a foot. Therefore it will take 9 (3*3) tiles to make a square foot. Since you ne...Read More

3 Answers

2401 views
C. Perez, Writer
Answered: Apr 24, 2019
The correct answer to this question is D, 70-75. A heat pump is a device which has the ability to transfer heat energy to a heat sink. The pump does this by moving heat from absorbing heat from a...Read More

2 Answers

1276 views
Chris Kenway, Content Writer
Answered: Oct 10, 2018
Due to safety reasons, many appliances and machines have an emergency shutoff valves in case there is a problem. For instance, at a gas station, there is a shutoff valve in the store where the...Read More

4 Answers

1261 views
Bobby Rickets, Content Reviewer
Answered: Jun 20, 2019
The correct answer to this question is Black, or Red. All line voltage has three conductors. One of those three is the hot wire. It is used to provide a 120 VAC current source. The other three...Read More

3 Answers

1203 views
Gelliott
Answered: Aug 07, 2019

Hot wire on 110 volt circuit is black of red

2 Answers

935 views
Gelliott
Answered: Aug 07, 2019

Hot wire relay is found on a stove

2 Answers

919 views
Gelliott
Answered: Aug 07, 2019

R-12 is mo longer available

so R-22

2 Answers

802 views
M. Kennedy, Web Content Writer
Answered: Sep 18, 2018
A Heating Ventilating Air Conditioning System, known as HVAC, uses a condenser to precipitate steam vapors into a liquid. As shown in the picture above, steam enters the top of the vessel, passes...Read More

4 Answers

675 views
John Adney
Answered: Oct 17, 2017
I have seen quality results from handmade tools. I can drill a decent hole with a old hand drill, that may not appear to be the same quality as a $250 electric drill. Although I do believe that...Read More

2 Answers

670 views
To check the seal on an oven door, the best way is to place a sheet of paper between the door and the oven. Close the paper and try to pull out the paper from the door. if you are able to pull...Read More

3 Answers

625 views
H. Jones, Web Content Writer
Answered: Oct 10, 2018
In regards to electricity, many people have two switches in some of their rooms that are used often. For example, in a dining room or living room where there are two doors or pathways into the...Read More

2 Answers

560 views
J.Barbara
Answered: Feb 16, 2018
If you are installing a hot water heater or perhaps refilling it for some reason as the tank fills with water you should purge the tank of any air that is in it. This will prevent air getting...Read More

3 Answers

524 views
D.Anthonyda
Answered: Feb 06, 2018
The only answer that is correct here is remove impurities. Pulling a vacuum, for those who don’t know, is a term in mechanics. It simply means that one has removed all the fluids and has...Read More

2 Answers

511 views
Patrick.nashtn
Answered: May 05, 2020
Before a vacuum is pulled, the leak test should have already been done. When the lines are brazed, there will be contaminants to form and must be removed. After this is done, the nitrogen is then...Read More

2 Answers

461 views

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