Module 6: Cranes, Derricks, Hoists, Elevators and
Conveyors Answers
Question Answer
-Contact with power lines<br>-
What are the four major types of
Falls<br>-Overturns<br>-
crane accidents?
Mechanical failures
A crane is needed on a -Contact power line owners<br>-
construction site where there are Know basic crane capacities and
power lines present. What is limitations<br>-Know location and
Pieter’s duty as a crane operator voltage<br>-Determine the safe
to prepare for crane usage near areas to store materials and plan
power lines? machinery
Cranes can be overturned as a
result of unknown load weights.
As a crane operator, Pieter must
-Boom length<br>-Load radius
ensure that the load is within the
load chart ratings for which two
elements?
-De-energize and ground the
power lines<br>-Determine the
What can be done to protect line’s voltage and the minimum
workers and equipment if power approach distance permitted<br>-
lines will be closer than 20 feet to Ensure that no part of any
crane operations? equipment, load line, or load gets
closer than 20 feet to the power
lines
How far must you be from power
lines at a minimum while 10 feet
operating a crane?
When must your employer take
precautions to ensure that
When power lines will be closer
equipment and workers don’t
than 20 feet to crane operations.
make contact with power lines
during crane operations?
Crane operators are required to – Have vision at least 20/30 Snellen
meet which of the following in one eye and 20/50 in the other,
requirements? with or without glasses
, Question Answer
– Be able to distinguish red, green,
and yellow if color differentiation is
required for the operation
– Must have adequate hearing, with
or without hearing aids, for the
specific operation
– Designated operators
– Inspectors
Who can operate a crane? – Maintenance and test personnel
when it is necessary in the
performance of their duties
What is the extension attached to
the boom point that provides
Jib
added boom length for lifting
specified loads called?
– Contact with power lines
Which of the following are the
– Overturns
four major causes of crane
– Mechanical failures
accidents?
– Falls
A crane is attempting to lift a
beam that exceeds its load rating.
Overturn
What type of accident is
possible?
If there are power lines near a – De-energize and ground the lines
work site, it must be determined – Ensure that no part of any
how close they are to any crane equipment, load line, or load gets
activities. Which of the following closer than 20 feet to the power
are options for keeping workers lines
safe if the power lines will be – Determine the line’s voltage and
closer than 20 feet to crane minimum approach distance
activities? permitted
– Barricading areas within the swing
radius
Which of the following must be – Contacting power line owners
done before operating a crane? – Leveling the crane
– Making other personnel aware of
hoisting activities
During a crane inspection, which – Clearance for swing radius
of the following must be – Slings
inspected?
Conveyors Answers
Question Answer
-Contact with power lines<br>-
What are the four major types of
Falls<br>-Overturns<br>-
crane accidents?
Mechanical failures
A crane is needed on a -Contact power line owners<br>-
construction site where there are Know basic crane capacities and
power lines present. What is limitations<br>-Know location and
Pieter’s duty as a crane operator voltage<br>-Determine the safe
to prepare for crane usage near areas to store materials and plan
power lines? machinery
Cranes can be overturned as a
result of unknown load weights.
As a crane operator, Pieter must
-Boom length<br>-Load radius
ensure that the load is within the
load chart ratings for which two
elements?
-De-energize and ground the
power lines<br>-Determine the
What can be done to protect line’s voltage and the minimum
workers and equipment if power approach distance permitted<br>-
lines will be closer than 20 feet to Ensure that no part of any
crane operations? equipment, load line, or load gets
closer than 20 feet to the power
lines
How far must you be from power
lines at a minimum while 10 feet
operating a crane?
When must your employer take
precautions to ensure that
When power lines will be closer
equipment and workers don’t
than 20 feet to crane operations.
make contact with power lines
during crane operations?
Crane operators are required to – Have vision at least 20/30 Snellen
meet which of the following in one eye and 20/50 in the other,
requirements? with or without glasses
, Question Answer
– Be able to distinguish red, green,
and yellow if color differentiation is
required for the operation
– Must have adequate hearing, with
or without hearing aids, for the
specific operation
– Designated operators
– Inspectors
Who can operate a crane? – Maintenance and test personnel
when it is necessary in the
performance of their duties
What is the extension attached to
the boom point that provides
Jib
added boom length for lifting
specified loads called?
– Contact with power lines
Which of the following are the
– Overturns
four major causes of crane
– Mechanical failures
accidents?
– Falls
A crane is attempting to lift a
beam that exceeds its load rating.
Overturn
What type of accident is
possible?
If there are power lines near a – De-energize and ground the lines
work site, it must be determined – Ensure that no part of any
how close they are to any crane equipment, load line, or load gets
activities. Which of the following closer than 20 feet to the power
are options for keeping workers lines
safe if the power lines will be – Determine the line’s voltage and
closer than 20 feet to crane minimum approach distance
activities? permitted
– Barricading areas within the swing
radius
Which of the following must be – Contacting power line owners
done before operating a crane? – Leveling the crane
– Making other personnel aware of
hoisting activities
During a crane inspection, which – Clearance for swing radius
of the following must be – Slings
inspected?
