A | B |
When there is current leakage in excess of .006 amperes a ___ will open the circuit | GFCI |
Electricity is brought into the building through the ____ and passes to the ____ panel | Service entrance, distribution |
In awg system, the number of wire ____ as the size of wire gets smaller | Increases |
A ___ is used to describe the wiring details of a specific piece of equipment | wiring diagram |
A ___ should be installed in areas where moisture may be present | GFCI |
Also referred to as riser diagrams, ___ diagrams are schematic drawings | one line diagrams |
the smallest conductor permitted in branch circuits by the NEC is | 4 AWG |
The equipment, such as the utility pole, that brings electrical current to a distribution panel | service entrance |
A wire that is used to carry electricity | Conductor |
the electromotive force that causes current to flow | voltage |
A path consisting of two or more conductors carrying electricity from the source to a device and back | circuit |
A wire connecting an electrical circuit to serve electrical devices | receptacle |
the insulated panel that recieves current from the source and distributes it through circuits | distribution panel |
The unit of measurement of current | Ampere |
The ___ is the horizontal line portion of the welding symbol | referance line |
The ____ indicates the type of weld to be used | weld symbol |
when you need to know the size of the weld, refer to the | weld dimensions |
when a weld needs to be finshed, a finish symbol is included with the | contour |
true or false a spot welds are specified by their diameter | true |
true or false the abbreviation AW placed within the tail indicates thhat the weld needs to be alloy welded | false |
true or false a welding symbol may include specs for the weld's groove angle | true |
if a symbol is above the refrence line it indicates that the weld should be made on the | outside |
A ___ symbol indicates that a weld requires 100% joint penetration | melt-through |
Notes that designate welding specifications are placed within the ___ of the welding symbol | tail |
when estimating the labor costs you need to determine the ___ for each trade | labor rates |
lists that a detail a contractors Various costs are called | takeoffs |
the ___ method of estimating breaks a building down into equal parts and then multiplies the units by dollars per unit cost | approxmate |
true or false a cost oversight commited by an estimator will not affect the profitabilit of the contractor | false |
true or false the approximate method of estimating is often used to help an owner decide whether or not to build | true |
true or false the detailed estimating method works best when a project is unique in size and structure | true |
the labor costs used in estimates will typically be higher than the actual hourly rate paid to workers | true |
the approximate method of estimating costs is also known as | budget parameter method |
a companys cost of doing busines is its | overhead |
The ___ rate is the amount of material that can be installed per hour or day | production |