L1. Boxes are classified by type, construction, and A. installation location. B. luminaire support capability. C. number of knockouts. D. power rating L2. Which of the following devices must be placed at each end of an armored cable to prevent damage to the conductors? A. An insulating slider B. An insertion coupling C. An antishort bushing D. A metal loop fitting L3. Which of the following is the maximum cross-sectional conductor fill area for underfloor raceways? A. 50% B. 60% C. 40% D. 30%
L1. Boxes are classified by type, construction, and A. installation location. B. luminaire support capability. C. number of knockouts. D. power rating L2. Which of the following devices must be placed at each end of an armored cable to prevent damage to the conductors? A. An insulating slider B. An insertion coupling C. An antishort bushing D. A metal loop fitting L3. Which of the following is the maximum cross-sectional conductor fill area for underfloor raceways? A. 50% B. 60% C. 40% D. 30%
Chapter4: Conductor Sizes And Types, Wiring Methods, Wire Connections, Voltage Drop, And Neutral Conductor Sizing For Services
Section: Chapter Questions
Problem 18R
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Question
L1. Boxes are classified by type, construction, and
A. installation location.
B. luminaire support capability.
C. number of knockouts.
D. power rating
L2. Which of the following devices must be placed at each end of an armored cable to prevent damage to
the conductors?
A. An insulating slider
B. An insertion coupling
C. An antishort bushing
D. A metal loop fitting
L3. Which of the following is the maximum cross-sectional conductor fill area for underfloor raceways?
A. 50%
B. 60%
C. 40%
D. 30%
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