Q62: Filler blocks are used on ladders to
A)brace
Q63: Home-made ladders used in construction are illegal.
Q64: A good grounding conductor can provide protection
Q65: On construction sites incandescent bulbs
A)must be guarded
B)must
Q66: For what application are filler blocks an
Q68: Molded or vulcanized splices are permitted in
Q69: Molded or vulcanized splices are prohibited in
Q70: Economic impact analyses have shown what system
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
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