Skills and Trades

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The operation of modern induced-draft equipment is normally controlled by: A) An electronic ... Started by Mimi	1 Replies 13 Views	Jul 27, 2018 by leeeep
How often should a low-efficiency panel filter be changed? A) Weekly B) Quarterly C) Monthly D) ... Started by BRWH	1 Replies 30 Views	Jul 27, 2018 by dawsa925
Why can oil furnaces operate at higher efficiencies than gas furnaces without condensing water in ... Started by Marty	3 Replies 120 Views	Jul 27, 2018 by welcom1000
The overcurrent protection for an electric furnace should be: A) No larger than the maximum ... Started by mwit1967	1 Replies 60 Views	Jul 27, 2018 by bfulkerson77
The heat sink for a water-source heat pump is: A) The air inside the house. B) The air outside ... Started by Mr.Thesaxman	1 Replies 76 Views	Jul 27, 2018 by chem1s3
The typical heat pump defrost termination temperature is around: A) 90F B) 32F C) 28F D) ... Started by Engineer	1 Replies 63 Views	Jul 27, 2018 by dpost18
The maximum required length in a piping table considers: A) Only the length of the pipe from the ... Started by stephzh	3 Replies 136 Views	Jul 27, 2018 by Kingjoffery
Pneumatic control systems: A) Use air pressure to modulate control valves. B) Are the most recent ... Started by cookcarl	1 Replies 56 Views	Jul 27, 2018 by millet
The Class A type fire extinguisher is ________ and is used for paper or wood fires. A) red B) ... Started by cagreen833	1 Replies 55 Views	Jul 27, 2018 by elizabethrperez
The negative part of an atom is an electron. Indicate whether the statement is true or ... Started by Frost2351	1 Replies 21 Views	Jul 27, 2018 by itsakadoozi
A good conductor has low resistance. Indicate whether the statement is true or ... Started by mmm	3 Replies 42 Views	Jul 27, 2018 by ErinKing
Traditional methods of capacity control for centrifugal compressors include: A) Adjustable pitch ... Started by NguyenJ	1 Replies 77 Views	Jul 27, 2018 by mjenn52
A milliamp is ________. A) one-thousandth of an ampere B) one million amps C) one-millionth of ... Started by kodithompson	1 Replies 24 Views	Jul 27, 2018 by verrinzo
Define the term electricity What will be an ideal response? ... Started by sabina	1 Replies 124 Views	Jul 27, 2018 by wshriver
What is current? What will be an ideal response? ... Started by elizabeth18	3 Replies 9 Views	Jul 27, 2018 by todom5090
Resistance is ________. A) the opposition to current flow B) the force that moves electrons C) ... Started by HCHenry	1 Replies 52 Views	Jul 27, 2018 by hanadaa
Kilo is the prefix for one thousand (1000). Indicate whether the statement is true or ... Started by rl	1 Replies 23 Views	Jul 27, 2018 by Cheesycrackers
It is a good practice to connect the fan motor and compressor motor for an air conditioner in series ... Started by DyllonKazuo	1 Replies 33 Views	Jul 27, 2018 by joshbk44
Wattage is ________. A) the unit for current B) the unit for power C) the unit for ... Started by roselinechinyere27m	3 Replies 47 Views	Jul 27, 2018 by momtoalll
A valence electron is ________. A) the electron in the outermost shell B) an electron with a ... Started by jeatrice	1 Replies 148 Views	Jul 27, 2018 by Dominic
Identify four types of pliers. What will be an ideal response? ... Started by deesands	1 Replies 30 Views	Jul 27, 2018 by katkat_flores
When making a current measurement with a VOM meter, you should ________. A) create an open in the ... Started by vicky	1 Replies 31 Views	Jul 27, 2018 by Ptupou85
Wattage will ________when voltage increases and current stays the same. A) stay the same B) ... Started by jc611	3 Replies 34 Views	Jul 27, 2018 by babybsemail
The control in the furnace that protects the furnace from overheating and causing a fire is the ... Started by LaDunn	1 Replies 51 Views	Jul 27, 2018 by diesoon
What is a control part of a system or diagram? What will be an ideal ... Started by cookcarl	1 Replies 19 Views	Jul 27, 2018 by ally