Economic impact analyses have shown what system to be a cheaper alternative to GFCIs?
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Q65: On construction sites incandescent bulbs
A)must be guarded
B)must
Q66: For what application are filler blocks an
Q67: Cornice hooks are an alternative to tiebacks.
Q68: Molded or vulcanized splices are permitted in
Q69: Molded or vulcanized splices are prohibited in
Q71: Pan-type treads are hollow
A)to make them light-weight
B)to
Q72: The design safety factor for scaffolds is:
A)3
B)4
C)5
D)6
Q73: Specified scaffold plank overhang is
A)less than specified
Q74: Tiebacks are
A)an alternative to cornice hooks
B)a secondary
Q75: What is the hazard of using concrete
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