Motors & Equipment第 99 / 120 题
A surface-mounted luminaire with a completely enclosed light source is installed in a clothes closet. What is the minimum clearance to the nearest point of the defined storage space?
a.12 inches
b.6 inches
c.3 inches
d.18 inches
解析
Surface-mounted luminaires with a completely enclosed light source require 12 inches of clearance from the storage space, while recessed luminaires with an enclosed light source are permitted at 6 inches because the housing is set back into the ceiling or wall. Open incandescent lamps are not permitted in clothes closets at all.
法律依据: 2023 NEC §410.16(C)免费刷完整 120 道题库 — 无需注册。
同考点相关题目
- An air conditioning condensing unit nameplate reads minimum circuit ampacity 24.6 and maximum overcurrent protective device 40. What overcurrent device must be installed?
- A hermetic refrigerant motor-compressor has a rated-load current of 20 amperes. What is the maximum branch-circuit short-circuit and ground-fault protective device at the standard 175 percent figure?
- For that same 20-ampere rated-load compressor supplied alone, what minimum conductor ampacity is required?
- A recessed luminaire that is NOT identified for insulation contact must maintain what minimum clearance from thermal insulation?
- A generator nameplate current rating is 200 amperes. What minimum conductor ampacity is required from the generator terminals to the first overcurrent device?
- A photovoltaic source circuit uses modules with a rated short-circuit current of 10 amperes. What minimum conductor ampacity is required before any temperature or conduit-fill adjustments?