Skills and Trades

Replies / Views	Last post
Select the temperature scales that can be used to work gas law problems. You may select more than ... Started by PhilipSeeMore	3 Replies 18 Views	Jul 24, 2018 by Laurenleakan
How many steps are required to calculate the heat necessary to change 10 lb of ice at -20F to steam ... Started by Tazate	1 Replies 37 Views	Jul 24, 2018 by Jody Vaughn
Convert -100 Celsius to Kelvin. A) -100 + 460 = 360K B) -100 - 273 = -373K C) -100 + 273 = 173K ... Started by 09madisonrousseau09	1 Replies 80 Views	Jul 24, 2018 by IAPPLET
The first law of thermodynamics states that: A) All objects contain some energy. B) Energy ... Started by meagbuch	1 Replies 90 Views	Jul 24, 2018 by tranoy
According to the second law of thermodynamics, how does heat travel? A) Heat energy travels from ... Started by Zoey63294	3 Replies 58 Views	Jul 24, 2018 by HandsomeMarc
The definition of a fluid is: A) Any liquid which cannot become a vapor at system pressure and ... Started by jlmhmf	1 Replies 21 Views	Jul 24, 2018 by uniquea123
Atmospheric pressure is affected by: A) Humidity, temperature, and geosynchronous location. B) ... Started by jeatrice	1 Replies 25 Views	Jul 24, 2018 by heinisk01
Natural convection occurs because of: A) Naturally occurring magnetic fields surrounding the ... Started by clippers!	1 Replies 21 Views	Jul 24, 2018 by bulacsom
As the distance between two objects increases, the radiant energy transferred between them: A) ... Started by plus1	3 Replies 20 Views	Jul 24, 2018 by bob
Which of the following changes occur in a melting ice cube? A) The water increases in temperature ... Started by CBme	1 Replies 43 Views	Jul 24, 2018 by yasmina
The bar system of pressure measurement is used primarily: A) In third-world countries where ... Started by Metfan725	1 Replies 18 Views	Jul 24, 2018 by frejo
What kinds of pressures are expressed in inches of water column? A) Refrigeration system high- ... Started by ss2343	1 Replies 26 Views	Jul 24, 2018 by iceage
According to Joe's pressure-temperature chart, the saturation temperature for 12 lb of pressure is ... Started by sarasara	3 Replies 125 Views	Jul 24, 2018 by Juro
According to Pascal's law, what happens to the pressure of a propane tank as it empties? A) The ... Started by schs14	1 Replies 273 Views	Jul 24, 2018 by irishcancer18
When the current atmospheric pressure is not considered in measuring pressure, it is known as: A) ... Started by bio_gurl	1 Replies 90 Views	Jul 24, 2018 by princessflame2016
Can changes in atmospheric pressure affect refrigeration gauge pressure readings? A) Atmospheric ... Started by melly21297	1 Replies 56 Views	Jul 24, 2018 by Tonyam972
A barometer is used to read: A) Atmospheric pressure. B) Wind speed. C) System pressures. D) ... Started by naturalchemist	3 Replies 29 Views	Jul 24, 2018 by karmakat49
What is the conversion of 20 inches of mercury to psi? A) 60 psi B) 40 psi C) 2 psi D) 10 ... Started by Deast7027	1 Replies 45 Views	Jul 24, 2018 by javimendoza7
What would a barometric pressure reading of 28 in Hg be in psia? A) A 28 in Hg barometric reading ... Started by Capo	1 Replies 60 Views	Jul 24, 2018 by Jordin Calloway
A refrigerant properties chart calls for 100 psia. The reading you would see on your gauges is: ... Started by itsmyluck	1 Replies 80 Views	Jul 24, 2018 by joewallace
An outside force called ________ can activate natural frequencies in a machine. A) acceleration ... Started by pane00	3 Replies 71 Views	Jul 24, 2018 by Meganchabluk
The four characteristics of a vibration cycle are velocity, displacement, acceleration, and ... Started by audie	1 Replies 30 Views	Jul 24, 2018 by mcomstock09
An evaporator that covers the coils being cooled with liquid refrigerant is a: A) Carbureting ... Started by nautica902	1 Replies 49 Views	Jul 24, 2018 by ilianabrrr
The compound gauge reads: A) The pressures on both the low side and the high side of the system. ... Started by dmcintosh	1 Replies 73 Views	Jul 24, 2018 by Jevvish
To prevent liquid slugs from leaving the evaporator and entering the compressor, direct expansion ... Started by imowrer	3 Replies 47 Views	Jul 24, 2018 by fwbard