Equipment grounding refers to connecting the normally noncurrent-carrying metal parts of equipment to the system grounded conductor and/or _____.
a. each other
b. the grounding electrode conductor
c. the main bonding jumper
d. neutral
b. the grounding electrode conductor
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When installing hammer-driven pins and studs in soft concrete block, the drive pin or stud should be embedded in the concrete for at least _____.
a. 1/2" (13 mm) b. 5/8" (16 mm) c. 3/4" (19 mm) d. 1-1/4" (32 mm)
A flat-plate or a flat-slab floor is a beamless concrete floor. However, in many situations, such floor slabs are often provided with shallow perimeter beams. What is that in response to?
What will be an ideal response?
Electrical components can generally be divided into two groups:
A) Pilot duty and line duty. B) Electro-mechanical and electronic. C) Controls and loads. D) Electrical and mechanical.
The dimensions of a door marked 3668 on a floor plan are _____
a. 36? wide, 68? high b. 36? wide, 6?-8? high c. 3?-6? wide, 6?-8? high d. 36? wide, 6?-8? high