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1. According to OSHA, when traveling under an energized power line, what is the
minimum distance for a line with over 750kv? - ANSWER 20ft
2. When a crane is in transit and you are required to pass under 50kV power lines,
what is OSHA's minimum required clearance? - ANSWER 6 ft (Table T)
3. If setting up the crane by a ditch or an excavation, you should stay at least what
distance from the edge? - ANSWER 1 ½ times the depth of the excavation
4. When working at ground floor level near a cellar wall, the crane's outrigger
pads or tracks should be placed - ANSWER at least as far back as the depth of
the wall below ground
5. According to OSHA who is responsible for ensuring proper ground conditions
when setting up a mobile crane? - ANSWER The controlling entity
6. What is not a good location for crane set up? - ANSWER Above utilities
7. What is the best procedure to follow when underground utilities may be
present? - ANSWER Contact local utility company
,8. While performing a shift inspection on a crane and there is water accumulation
around the outrigger, what must be done? - ANSWER Drained
9. While operating a boom truck near a reinforced retaining wall, it is
recommended to stay back - ANSWER A distance equal to the depth
10.What would be a concern when setting up a crane over a sewer or water main? -
ANSWER Weight and vibration from the machine and load
11.When setting up a crane in an area that has public access, you should barricade:
- ANSWER the jobsite
12.When setting up a crane, what must be barricaded to protect workers? -
ANSWER The hazardous areas created by the rotating superstructure
13.According to OSHA, what area must be barricaded to prevent employees from
entering - ANSWER accessible areas within the swing radius of the rear of the
rotating superstructure of the crane
14.The best way to keep people from being injured from the counterweight of the
crane is to - ANSWER Fence or barricade the swing area of the crane
15.When operating a crane in a tight space, what would be the recommended
minimum clearance for the rear swing of the crane? - ANSWER 2 ft
16.The load line of the crane you're operating comes into contact with an energized
power line. There's no sign of any other danger, such as fire. In such a situation,
you should - ANSWER stay in the cab until the lines are de-energized
,17.What is the most common cause of death to ground personnel working with
cranes - ANSWER electrocution
18.According to ASME B30.5, when working around power lines of more than
750kV, how much clearance is generally required from any part of the crane and
its load - ANSWER 45 ft
19.What is the proper procedure when using an insulating link or a boot near
power lines - ANSWER be sure to maintain the correct allowable distance from
the lines
20.When working closer than 10 feet on a 12 KV line - ANSWER De-energize and
ground the circuit.
21.What is the minimum allowable clearance from the crane and power lines under
50kV - ANSWER 10 ft
22.When working near power lines, when is a dedicated spotter required? -
ANSWER When the crane can reach within 20 ft. of power lines
23.According to OSHA 1926 Subpart CC, how many power line warning decals
must be on a crane working in construction? - ANSWER 3
24.When is it safe to handle loads under powerlines? - ANSWER The load nor any
part of the crane can come closer than regulations allow
25.According to ASME B30.5, the prohibited zone for power lines that are 60kV is
- ANSWER 15 ft
, 26.What is the #1 cause of death of ground personnel working with cranes? -
ANSWER Electrocution
27.What is the minimum clearance for a crane operating near an energized power
line of 40 kV for a non-qualified electrical worker? - ANSWER 10 ft
28.What must a person working around energized power lines not wear? -
ANSWER Conductive items
29.If a crane is being used closer than 10' to an energized power line, the operator
must - ANSWER Be an electrically qualified person
30.A crane in operation makes contact with an energized power line and the crane
bursts into flames, what should the operator do? - ANSWER Jump from the
crane
31.Who does the link protect when using an insulated link on a crane hook? -
ANSWER Ground personnel
32.Protective grounding equipment must be able to conduct the maximum fault
current - ANSWER at the point of grounding.
33.What is the minimum approach distance for an unqualified crane operator with
a qualified electrical worker as an observer doing work around a 12 KV circuit?
- ANSWER 10 feet
34.OSHA ET&D standards require retraining if a task has not been performed for
over - ANSWER 1 year.