ANSWERS 100% CORRECT AND VERIFIED SOLUTIONS.
⫸ What is the most economical permanent entrance over the life cycle of a building?.
Answer:underground
⫸ What service entrance has the lowest installation cost?. Answer:aerial
⫸ What type of ladder should be using near electrical work?. Answer:non-conductive (i.e.
fiberglass)
⫸ What are the four steps you should take responding to an electrical fire?. Answer:R - rescue
A - alarm
C - confine
E - extinguish
⫸ What neutralizes battery acid?. Answer:baking soda
⫸ How far should the backboard be installed above the finished floor in a TR. Answer:8 inches
⫸ How much vertical space does one rack unit (RU) occupy?. Answer:1.75 inches
⫸ A hand bender can be used for conduits up to. Answer:1 1/4
⫸ What is the minimum bend radius for 2 in. conduit. Answer:12 in
⫸ Open top cable supports (j-hooks) should be install to provide a minimum of _ clearance
above ceilings. Answer:3 inches
, ⫸ What are the three main bonding and grounding components?. Answer:Ground rod
PBB
TBB
⫸ What are the recommendations for placing a BBC (GE) in a multistory building?.
Answer:Every third floor and the top
⫸ What is the minimum recommended AWG for a BBC (GE)?. Answer:6 gauge
⫸ What is the recommended maximum value for the bonding resistance between the two
points on bonded surfaces?. Answer:0.1 ohms or less
⫸ Secondary protectors are installed to handle. Answer:sneak currents
⫸ What is the preferred method for installing backbone cable in a vertical pathway?.
Answer:top-down
⫸ What can be used to minimize cables twisting and wrapping around themselves during a
pull?. Answer:swivel
⫸ What is the maximum pulling tension for a 4-pair UTP cable?. Answer:25 Lbs
⫸ What is the recommended method for attaching a pull string to a horizontal copper cables?.
Answer:at least 3 half hitches
⫸ What should be used to secure backbone cable in a vertical pathway?. Answer:wire-mesh
grip
⫸ What is the preferred method for attaching loose tube fiber optic cables to a pull rope?.
Answer:wire-mesh grip
⫸ What is the recommended method of balanced twisted pair terminations?. Answer:Insulation
Displacement Connector (IDC)
⫸ Which termination configuration uses drain wires?. Answer:STP