Skills and Trades

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A geothermal heat pump is one in which _____. a. heat is extracted from lake water b. the heat ... Started by DyllonKazuo	1 Replies 62 Views	Jul 24, 2018 by TDubDCFL
In the cooling mode, the reversing valve is typically _____. a. bypassed b. energized c. ... Started by armygirl	1 Replies 32 Views	Jul 24, 2018 by tofugiraffe
The microprocessor control board in a packaged heat pump has the correct inputs and outputs to ... Started by natalie2426	3 Replies 8 Views	Jul 24, 2018 by SamMuagrove
In an area where freezing drizzle is common in winter, which defrost interval stands the best chance ... Started by justinmsk	1 Replies 17 Views	Jul 24, 2018 by efwsefaw
The control point classification of a sensor used to measure the status of a pressure switch is ... Started by saraeharris	1 Replies 16 Views	Jul 24, 2018 by ciecieme
Which control algorithm is typically used in HVAC equipment when the controlled variable changes ... Started by Chloeellawright	1 Replies 43 Views	Jul 24, 2018 by janieazgirl
In a chilled-water system, the temperature of the water leaving the chiller is typically maintained ... Started by natalie2426	3 Replies 106 Views	Jul 24, 2018 by steff9894
When a DDC control system is used, the occupancy period control is found in the _____. a. zone ... Started by casperchen82	1 Replies 44 Views	Jul 24, 2018 by alexisweber49
VAV systems are capable of controlling indoor air quality (IAQ) at the zone level by employing a ... Started by MirandaLo	1 Replies 26 Views	Jul 24, 2018 by wtf444
The seven-layer communication protocol that allows efficient operation of BMS controllers is called ... Started by Alainaaa8	1 Replies 23 Views	Jul 24, 2018 by kristenb95
LonWorks can best be described as _____. a. firmware b. a DDC network c. a BMS protocol d. a ... Started by JMatthes	3 Replies 28 Views	Jul 24, 2018 by wtf444
Which type of control module uses inputs from one or more power meter(s) to track building energy ... Started by armygirl	1 Replies 22 Views	Jul 24, 2018 by Liddy
A type of personal protective equipment that is not usually needed when installing insulation is ... Started by jlmhmf	1 Replies 9 Views	Jul 24, 2018 by k2629
A vapor barrier material that is applied over wall studs and ceiling joists after insulation is ... Started by LCritchfi	1 Replies 21 Views	Jul 24, 2018 by brittrenee
In a conventionally insulated house, air infiltration and heat escaping through frame walls can ... Started by Mr.Thesaxman	3 Replies 35 Views	Jul 24, 2018 by flannelavenger
When the insulation requirements call for a greater depth of loose-fill insulation than the height ... Started by ETearle	1 Replies 40 Views	Jul 24, 2018 by juicepod
A vapor barrier should be installed between loose-fill insulation and the finished ceiling _____. ... Started by D2AR0N	1 Replies 31 Views	Jul 24, 2018 by mcni194
Rigid insulation can be installed on the interior surfaces of a foundation if the walls _____. a. ... Started by xroflmao	1 Replies 39 Views	Jul 24, 2018 by maaaaaaaaaa
The thin sheet of rubber, PVC, or other material inserted into a construction joint to obstruct the ... Started by luvbio	3 Replies 153 Views	Jul 24, 2018 by chem1s3
An insulated wall divides two _____. a. environmental domains b. controlled spaces c. ... Started by Mr3Hunna	1 Replies 30 Views	Jul 24, 2018 by k.lashomb
Slurry walls are typically used in excavations only when _____. a. excavations are less than 25' ... Started by jwb375	1 Replies 32 Views	Jul 24, 2018 by Kjones0604
In most construction projects, the density and strength of the soil is improved by _____. a. ... Started by lilldybug07	1 Replies 56 Views	Jul 24, 2018 by janeli1
To prevent cave-ins, sloped or tiered walls may be used for trenches less than _____. a. 10' deep ... Started by RYAN BANYAN	3 Replies 252 Views	Jul 24, 2018 by iceage
When installing a vapor barriers in a crawl space, they should be located _____. a. on the ground ... Started by newyorker26	1 Replies 96 Views	Jul 24, 2018 by katieost
For compacting soil in trenches, an effective tool is the _____. a. rubber-tired roller b. ... Started by arivle123	1 Replies 14 Views	Jul 24, 2018 by sylvia