Skills and Trades

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Why are liquid line filter-driers required for all systems using HFC refrigerant? A) Because the ... Started by sjones	1 Replies 43 Views	Jul 26, 2018 by Dnite
The small line on a split system air conditioning unit is the: A) Oil return line. B) Liquid ... Started by fbq8i	1 Replies 81 Views	Jul 26, 2018 by missalyssa26
The line that connects the condenser to the metering device is called the: A) Liquid line. B) ... Started by iveyjurea	1 Replies 36 Views	Jul 26, 2018 by jesse.fleming
Which substance from the choices given has the greatest density? A) Gold B) Wood C) Aluminum D) ... Started by ereecah	3 Replies 27 Views	Jul 26, 2018 by Expo
Hot air is: A) Equal in density with warm or cold air at the same barometric pressure. B) Less ... Started by LaDunn	1 Replies 50 Views	Jul 26, 2018 by karlss
Why is the figure 3.41 significant in figuring BTU? A) One volt equals 3.41 BTU per hour. B) One ... Started by SGallaher96	1 Replies 14 Views	Jul 26, 2018 by polinasid
The function of the compressor in the refrigeration cycle is: A) Lower the pressure and ... Started by drink	1 Replies 51 Views	Jul 26, 2018 by mohan
Refrigeration needs on trucks, tractor-trailers, and shipping containers are equipped with: A) ... Started by gbarreiro	3 Replies 96 Views	Jul 26, 2018 by tofugiraffe
The most relevant standard that applies to air conditioning technicians is: A) AHRI Standard A. ... Started by michelleunicorn	1 Replies 16 Views	Jul 26, 2018 by cassie_ragen
The calculations for density and specific volume for Systems International (SI) are: A) The same ... Started by tingc95	1 Replies 30 Views	Jul 26, 2018 by 234sdffa
As the refrigerant passes through the condenser, the refrigerant is: A) Condensed from a gas to a ... Started by shenderson6	1 Replies 64 Views	Jul 26, 2018 by janeli
If a HVACR technician determines the ratio of the density of a material to the density of a common ... Started by laurencescou	3 Replies 47 Views	Jul 26, 2018 by Pamela.irrgang@yahoo.com
Potential energy is: A) Purely theoretical. B) Energy in motion. C) An energy source with ... Started by beccaep	1 Replies 59 Views	Jul 26, 2018 by shayla
What is the primary difference between air cooled condensers on standard efficiency systems and air ... Started by olgavictoria	1 Replies 25 Views	Jul 26, 2018 by atrochim
Kinetic energy is: A) An energy source with promise that has not found practical application. B) ... Started by vicotolentino	1 Replies 26 Views	Jul 26, 2018 by connor417
In the United States, the cooling capacity of air conditioning equipment is expressed in? A) Tons ... Started by humphriesbr@me.com	3 Replies 16 Views	Jul 26, 2018 by nikmaaacs
When cleaning an air cooled condenser: A) High pressure water streams are the most effective on ... Started by Pineapplelove6	1 Replies 41 Views	Jul 26, 2018 by frejo
Energy sources which cannot be replenished are called: A) Non-renewable energy sources. B) ... Started by Sufayan.ah	1 Replies 54 Views	Jul 26, 2018 by zhanghao
Which type of condenser generally operates with a lower discharge pressure? A) Water cooled ... Started by vHAUNG6011	1 Replies 137 Views	Jul 26, 2018 by Kingjoffery
A technician pushes a 50 lb box 4 feet in 2 seconds. The rate of work is: A) 200 ft lbs/2 s= 100 ... Started by MirandaLo	3 Replies 35 Views	Jul 26, 2018 by fwbard
A heat transfer process results in 17 kilocalories of heat being removed from one liter (1 kilogram) ... Started by robinn137	1 Replies 41 Views	Jul 26, 2018 by debra928
What is the required input in watts to operate a 70 efficient 3 horsepower electric motor? A) 3 ... Started by Shelles	1 Replies 82 Views	Jul 26, 2018 by tkempin
What is absolute 0? A) The hottest possible temperature where matter is indistinguishable from ... Started by RYAN BANYAN	1 Replies 19 Views	Jul 26, 2018 by sabina576
Which of the following is a disadvantage of a digital thermometer? A) Memory functions B) Sensor ... Started by joblessjake	3 Replies 23 Views	Jul 26, 2018 by billybob123
Which is true of absolute temperature? A) There is no start or end point to temperature. B) ... Started by jayhills49	1 Replies 70 Views	Jul 26, 2018 by Meganchabluk