Test 2 Flashcards
To break a stuck nut loose you should use a
Box wrench
Hammer drills are used for drilling holes in
Masonry and concrete
What type of tool is used to trace a lost or mislabeled cable
Toner and amplifier probe
What do you coat steal fasteners with to prevent corrosion
Zinc
Article 800 in the NEC coveres
Communication circuits
A balanced signal is transmitted on what type of cable
Twisted pair
An unbalanced signal is transmitted on what type of cable
Coaxial
A twisted pair has a maximum run distance of
90 meters
The maximum pull force for unshielded twisted pair cable shall not exceed
25 lbs
To improve conductor flexibility and durability use a
Stranded conductor
How do you start a cut in box
Horizontal in case you hit a stud
What type of cable goes floor to floor
Riser
Where can you use riser cable
Vertical and horizontal in non plenum spaces
Where can you use plenum cable
Anywhere
Where can you use general purpose cable
Only horizontal
Can class 2 and 3 cables be used with class one cables
Yes when they are separated by a barrier
General purpose cable must be ________ and classified for specific use and purpose
Listed
General purpose cable must be listed and ________ for specific use and purpose
Classified
The three parts of a coaxial cable
Braid
Conductor
Dielectric
Three types of communication cable are
Twisted
Fiber
Coaxial
What is abandoned communication cable
Cable that is not terminated at the device or identified for future use with a tag
The front edge of a box shall be no more than ________ from the finished surface of a Sheetrock wall.
6mm
1/4 in
The three parts of a screwdriver are
Shank
Handle
Blade
What is a plenum space
A compartment or chamber to which one or more air ducts are connected to form the air distribution system
Environmental air
