Skills and Trades

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A device that converts a nonelectrical impulse such as sound, heat, light, or pressure into an ... Started by frankwu	1 Replies 52 Views	Jul 24, 2018 by underwood14
What does amplification mean in indoor air quality terms? A) The combined effect of multiple ... Started by jho37	1 Replies 14 Views	Jul 24, 2018 by allisonblackmore
An open door switch on a gas furnace will cause: A) A complete system shutdownno system operation ... Started by B	1 Replies 80 Views	Jul 24, 2018 by makaylafy
VOCs are: A) Vociferous organic cyclamates. B) Volatile odorant compounds. C) Volatile organic ... Started by Yolanda	3 Replies 125 Views	Jul 24, 2018 by cswans24
What is the odorant commonly used in natural gas? A) Natural gas has its own odor and does not ... Started by Mr. Wonderful	1 Replies 40 Views	Jul 24, 2018 by GCabra
Which of the following statements is TRUE about a Grade 1 fuel oil? A) The oil consists of 1 ... Started by K@	1 Replies 21 Views	Jul 24, 2018 by djpooyouma
HVACR equipment placement may be affected by local ordinances governing: A) Noise. B) Vibration. ... Started by ashley	1 Replies 47 Views	Jul 24, 2018 by ebenov
Which of these methods used to determine which component in a circuit is not working properly? A) ... Started by JGIBBSON	3 Replies 17 Views	Jul 24, 2018 by Loise Hard
Which terminal controls second-stage heat on most heat pumps? A) O/B terminal B) G terminal C) W ... Started by sabina	1 Replies 103 Views	Jul 24, 2018 by swimkari
Placing equipment directly on ceiling joists: A) Causes structural damage. B) Is against code. ... Started by charchew	1 Replies 61 Views	Jul 24, 2018 by randomguy133
The route that a pollutant takes to enter a building or area is called: A) Point of genesis. B) ... Started by schs14	1 Replies 6 Views	Jul 24, 2018 by miss_1456@hotmail.com
What instrument is used primarily for measuring leakage in ductwork? A) A magnehelic gauge B) An ... Started by Awilson837	3 Replies 43 Views	Jul 24, 2018 by yahahah24021
Which system is designed to evaluate how efficient the heating of a pump is? A) SEER B) HSPF C) ... Started by wrbasek0	1 Replies 18 Views	Jul 24, 2018 by jjorrostieta
The minimum clearance to allow for the front of the service access panel on equipment installed in ... Started by melly21297	1 Replies 13 Views	Jul 24, 2018 by Anonymous
The grade of fuel oil most commonly used in residential oil-fired furnaces is: A) Number 5. B) ... Started by wrbasek0	1 Replies 219 Views	Jul 24, 2018 by Joy Chen
The most important consideration when installing a unit with an air-cooled condenser is: A) ... Started by Melani1276	3 Replies 124 Views	Jul 24, 2018 by Jody Vaughn
Some manufacturers recommend a ________ hour standing pressure test before evacuation. A) 24 B) 6 ... Started by mspears3	1 Replies 957 Views	Jul 24, 2018 by Madisongo23
The heating capacity of number 2 fuel oil is approximately: A) 100,000 BTU per gallon. B) 160,000 ... Started by dalyningkenk	1 Replies 128 Views	Jul 24, 2018 by Cnarkel
In a direct expansion chiller, the chilled water is circulated: A) Through the compressor water ... Started by bobypop	1 Replies 121 Views	Jul 24, 2018 by Kingjoffery
What instrument is used for measuring leakage rates in a building? A) Either a blower door or a ... Started by appyboo	3 Replies 76 Views	Jul 24, 2018 by ashely1112
Multisplit manufacturer's installation instructions will specify the maximum total installed piping ... Started by humphriesbr@me.com	1 Replies 76 Views	Jul 24, 2018 by nital
Control voltage can be out because: A) Because of a blown 24 volt fuse. B) Because of an issue ... Started by iveyjurea	1 Replies 69 Views	Jul 24, 2018 by jasonq
In a flooded chiller, the chilled water is circulated: A) Through the inside of the chiller ... Started by EY67	1 Replies 62 Views	Jul 24, 2018 by leahchrapun
Hopscotching is an electrical troubleshooting technique that works by: A) Moving one meter lead ... Started by jenna1	3 Replies 100 Views	Jul 24, 2018 by Madisongo23
Which type of chiller is more likely to freeze the tubes if charged or recovered improperly? A) ... Started by Kthamas	1 Replies 53 Views	Jul 24, 2018 by Sassygurl126