Skills and Trades

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How much refrigerant does the condensing unit of a new split-system air conditioning system contain? ... Started by jayhills49	3 Replies 112 Views	Jul 27, 2018 by iman
The operating mechanism inside most refrigeration gauges is: A) A strain gauge. B) A Bourdon ... Started by sammy	1 Replies 85 Views	Jul 27, 2018 by momo1250
The temperature measurement of the air leaving the air diffusers is called: A) Supply-air ... Started by luvbio	1 Replies 55 Views	Jul 27, 2018 by succesfull
The three general types of materials used in electrical control systems are: A) Wire, electrical ... Started by 09madisonrousseau09	1 Replies 78 Views	Jul 27, 2018 by ambernicolefink
Electrical potential is measured in: A) Volts. B) Amps. C) Ohms. D) ... Started by KWilfred	3 Replies 34 Views	Jul 27, 2018 by epscape
When factory supplied branch joints are not available for VRF refrigerant piping it is permissible ... Started by student77	1 Replies 42 Views	Jul 27, 2018 by steff9894
Magnetic overload relays: A) Are current sensitive. B) Are made up of a sealed tube completely ... Started by jCorn1234	1 Replies 58 Views	Jul 27, 2018 by dyrone
Most manufacturer's joints work well when the inlet and both outlet branches are installed: A) ... Started by bobbysung	1 Replies 85 Views	Jul 27, 2018 by polinasid
An electric circuit without a complete path is called: A) An open circuit. B) A short circuit. ... Started by TVarnum	3 Replies 134 Views	Jul 27, 2018 by TINA
The correct shutoff procedure for an oxyacetylene torch is: A) Place the torch tip under water ... Started by colton	1 Replies 44 Views	Jul 27, 2018 by javimendoza7
When using a recovery machine manufactured after November 15, 1993, the recovery level for Type II ... Started by tiffannnnyyyyyy	1 Replies 55 Views	Jul 27, 2018 by TheNamesImani
It has been illegal to vent ozone-depleting refrigerants from stationary equipment since: A) July ... Started by Destiiny22	1 Replies 34 Views	Jul 27, 2018 by Sammyo
Third-party testing for recovery units has been required since: A) July 1, 1992. B) November 15, ... Started by FButt	3 Replies 46 Views	Jul 27, 2018 by amandanbreshears
Refrigerant that has been reprocessed to at least the purity specified in ARI Standard 700 is ... Started by jenna1	1 Replies 12 Views	Jul 27, 2018 by vboyd24
Leaks in air-conditioning systems must be repaired if they have an annual leak rate of: A) 10 ... Started by hubes95	1 Replies 29 Views	Jul 27, 2018 by matt95
What types of system access valves do residential air-conditioning systems usually have? A) ... Started by londonang	1 Replies 65 Views	Jul 27, 2018 by Gabe
The possible fine for violating the Clean Air Act is: A) 25,000 per incident. B) 10,000 per ... Started by Mr.Thesaxman	3 Replies 32 Views	Jul 27, 2018 by Fayaz00962
What types of system access valves do household refrigerators usually have? A) Manual valves on ... Started by Brittanyd9008	1 Replies 34 Views	Jul 27, 2018 by vickybb89
Why is the number 3.41 significant in figuring BTU? A) One BTU is produced every 3.41 hours. B) ... Started by Zoey63294	1 Replies 81 Views	Jul 27, 2018 by ju
Potential energy is: A) An energy source with promise that has not found practical application. ... Started by LCritchfi	1 Replies 74 Views	Jul 27, 2018 by rleezy04
Liquid achieves its boiling point: A) When the liquid has reached its critical mass. B) When the ... Started by danielfitts88	3 Replies 164 Views	Jul 27, 2018 by karlss
The nucleus of an atom: A) Has a neutral charge. B) Produces centrifugal force. C) Is negatively ... Started by haleyc112	1 Replies 34 Views	Jul 27, 2018 by Sassygurl126
The line that connects the compressor to the condenser is called the: A) Suction line. B) ... Started by karlynnae	1 Replies 47 Views	Jul 27, 2018 by brittiany.barnes
The SI unit used to indicate pressure in HVACR systems is: A) Meter. B) Kilogram. C) Kilopascal. ... Started by chandani	1 Replies 41 Views	Jul 27, 2018 by karmakat49
Which of the following would have the greatest effect on the heat content of refrigerant? A) The ... Started by lracut11	3 Replies 248 Views	Jul 27, 2018 by cloudre37