When a standpipe system is installed and properly maintained it is a very effective means for extinguishing fires. This piping system supplies water to every floor in the building. Standpipe risers are usually located in the staircase enclosures or in the building
A. walls
B. ceilings
C. floors
D. hallways
Answer: D. hallways
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____________________ is the amount of voltage used trying to force current through a resistance.
Fill in the blank(s) with the appropriate word(s).
The potential relay coil is wired:
A) In parallel with the run winding. B) In series with the run winding. C) In parallel with the start winding. D) In series with the start winding.
What type of fuses should be used for overcurrent protection of air conditioning equipment circuits?
A) Dual element time-delay fuses B) Fast blowing fuses for added safety C) One-time fuses D) Air conditioning equipment does not require overcurrent protection because of its inherent thermal protectors.
How are holes and arcs dimensioned? Draw examples
What will be an ideal response?