A scaffold should always be erected
a) by the user only
b) plumb
c) by a contractor
d) plumb and level
e) level
Answer: D
A scaffold should always be erected
a) by the user only
b) plumb
c) by a contractor
d) plumb and level
e) level
Answer: D
a) by the user only
b) plumb
c) by a contractor
d) plumb and level
e) level
Answer: D