Skills and Trades

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If a discontinuity exceeds the code criteria it becomes a defect and the weld test assembly fails ... Started by michelleunicorn	1 Replies 26 Views	Jul 26, 2018 by meltdown117
On groove weld tests, some root concavity is acceptable; incomplete root penetration is not. ... Started by jjjetplane	3 Replies 110 Views	Jul 26, 2018 by mcarey591
Technology over the past 110 years has ________ of welding power sources. A) Improved the control ... Started by bobbysung	1 Replies 24 Views	Jul 26, 2018 by Edwyer
When voltage is increased: A) Voltage and current are not related B) Current is decreased C) ... Started by crobinson2013	1 Replies 63 Views	Jul 26, 2018 by Meganchabluk
Components of a transformer are: A) Primary coil B) Core C) Secondary coil D) All of the ... Started by lbcchick	1 Replies 53 Views	Jul 26, 2018 by livaneabi
One of the mechanical properties of all metals is resistance to electrical current flow. Indicate ... Started by Bernana	3 Replies 57 Views	Jul 26, 2018 by catron30
Why are different heating elements in an electric furnace normally step sequenced? A) To avoid a ... Started by Davideckstein7	1 Replies 41 Views	Jul 26, 2018 by emilymalinowski12
An advantage of a warm air electric furnace compared to an oil or gas furnace is A) Lower ... Started by Deast7027	1 Replies 45 Views	Jul 26, 2018 by jharrington11
As voltage increases, current decreases. Indicate whether the statement is true or ... Started by tiara099	1 Replies 30 Views	Jul 26, 2018 by Galvarado142
The secondary of a welding transformer always has larger-diameter wire. Indicate whether the ... Started by AEWBW	3 Replies 113 Views	Jul 26, 2018 by karmakat49
When does the blower operate on an electric furnace? A) The blower operates independently of the ... Started by berenicecastro	1 Replies 41 Views	Jul 26, 2018 by izzat
Inline cartridges are used A) to protect individual heating plates, groups of heating elements, ... Started by Medesa	1 Replies 53 Views	Jul 26, 2018 by atrochim
Which of the following is a good suggestion of how to minimize distortion? A) Make a series of ... Started by tnt_battle	1 Replies 47 Views	Jul 26, 2018 by chloejackso
What is the main installation clearance for an electric furnace? A) A 6 inch clearance from all ... Started by 809779	3 Replies 111 Views	Jul 26, 2018 by amanda_14
If a voltmeter shows a reading of 240 volts across the thermal limit to a strip heater on an ... Started by vinney12	1 Replies 46 Views	Jul 26, 2018 by briseldagonzales
The most common type of demand defrost control A) Measures the temperature difference between the ... Started by corkyiscool3328	1 Replies 26 Views	Jul 26, 2018 by dawsa925
Glycol solutions are added to water in secondary refrigerant loops A) To lubricate the ... Started by 2125004343	1 Replies 23 Views	Jul 26, 2018 by brittanywood
The outdoor coil is the condenser in A) The cooling cycle B) The heating cycle C) Both the ... Started by AEWBW	3 Replies 124 Views	Jul 26, 2018 by kiamars2010
One principle that makes heat pump operation possible is that A) Air velocity over a coil will ... Started by ashley	1 Replies 30 Views	Jul 26, 2018 by elyse44
The indoor coil is the evaporator in A) The cooling cycle B) The heating cycle C) Both the ... Started by nmorano1	1 Replies 169 Views	Jul 26, 2018 by nothere
The permanent discharge line on a reversing valve is always located A) On the right on the side ... Started by karlynnae	1 Replies 33 Views	Jul 26, 2018 by Chocorrol77
Match the system characteristics in the second column with the correct system in the right column. ... Started by rl	3 Replies 43 Views	Jul 26, 2018 by kingfahad97
How are the blower and coil arranged in most heat pump blower-coils? A) the coil is before the ... Started by anjilletteb	1 Replies 131 Views	Jul 26, 2018 by mcinincha279
Heat pump A has a SEER rating of 16 and an HSPF rating of 7 Heat pump B has a SEER rating of 14 and ... Started by lindiwe	1 Replies 113 Views	Jul 26, 2018 by ApricotDream
What does the O thermostat terminal energize on most heat pumps? A) The compressor contactor B) ... Started by swpotter12	1 Replies 34 Views	Jul 26, 2018 by InfiniteSteez