QUESTIONS WITH SOLUTIONS GUARANTEE A+
✔✔When setting up mobile cranes, the minimum clearance between the rotating upper
works and fixed objects should be?
A) 1 foot
B) 2 feet
C) 3 feet
D) 4 feet
E) 5 feet - ✔✔incorrect
D) 4 feet
✔✔The rated load of the hook block installed on a crane may limit the crane's lifting
capacity.
A) True
B) False - ✔✔A) True
✔✔When crane accidents happen or damage is found, you must do all of the following
EXCEPT
A) Continue operating until the supervisor performs an evaluation
B) Put the load in a safe condition
C) Standby for instructions
D) Stop operations
E) Contact your supervisor - ✔✔A) Continue operating until the supervisor performs an
evaluation
✔✔When should the rotate locking device be engaged on a mobile crane?
A) when hoisting a load
B) while the crane is traveling with a load in "pick and carry" mode
C) any other time required by the crane OEM
D) when landing a load
E) whenever using the LMI system
F) whenever the operator leaves the cab - ✔✔incorrect
B) while the crane is traveling with a load in "pick and carry" mode
C) any other time required by the crane OEM
D) when landing a load
F) whenever the operator leaves the cab
✔✔In cold weather operation, what precautions should be taken during the pre-
operational check or ODCL to avoid damage when sheaves may be frozen?
A) Check the hoist and boom lower limit switches first
B) Hoist down first and check the lower limit switch
C) Raise the blocks and boom before lowering them
D) Lower the boom prior to raising it
,E) Lower the blocks prior to raising them - ✔✔C) Raise the blocks and boom before
lowering them
✔✔If the crane operator and the Rigger-in-Charge disagree on whether or not a load is
safe to lift, the operator should-
A) Follow the instructions of the Rigger-in-Charge
B) Note the incident on the back of the ODCL card
C) Not operate the crane until contacting the supervisor to resolve the issue
D) Proceed slowly with extreme caution
E) Tell his or her supervisor at the end of the shift - ✔✔C) Not operate the crane until
contacting the supervisor to resolve the issue
✔✔Components that control, restrain, or position the load and upon failure W would
cause dropping, shifting, or uncontrolled movement of the load are
A) Alterations and/or modifications
B) Operational safety devices
C) Load bearing parts
D) Load controlling parts
E) General safety devices - ✔✔D) Load controlling parts
✔✔The Rigger-in-Charge has primary responsibility for determining the weight of an
object to be hoisted; however, the operator must be satisfied that the estimated weight
to be lifted will not exceed the safe load carrying capacity of the crane.
A) True
B) False - ✔✔A) True
✔✔The crane operator must check the certification information on the crane for
before operating the crane.
A) Operator's name, license number, and expiration date
B) Certified capacity, gross vehicle weight, and expiration date
C) Crane ID number, OEM capacity, and test date
D) Certification expiration date, crane ID, and certified capacity
E) Crane manufacturer, crane ID, and certified capacity - ✔✔D) Certification expiration
date, crane ID, and certified capacity
✔✔During performance of your pre-operational check of the crane, you find minor
deficiencies. What do you do?
A) Stop, secure the crane, and notify your supervisor. Do not operate the crane until the
deficiencies are corrected
B) Shut the crane down and return to your supervisor for additional work
C) Call your supervisor and let him or her know what the deficiencies are
D) Note the deficiencies on the ODCL - ✔✔D) Note the deficiencies on the ODCL not A)
Stop, secure the crane, and notify your supervisor. Do not operate the crane until the
deficiencies are corrected
, ✔✔Why is it important to have bent or dented crane boom members inspected and
evaluated?
up
A) Because bends and dents may cause the wire rope to get hung
B) Because bends and dents can reduce the strength of a boom resulting in sudden
collapse
C) Because bends and dents may cause the crane to lose stability and tip over
D) Because bends and dents can cause the capacity of the crane to be reduced during
the next load test - ✔✔B) Because bends and dents can reduce the strength of a boom
resulting in sudden collapse
✔✔What are the actions required if an asterisked item on the ODCL is found
unsatisfactory during the pre-use check of the crane?
A) Stop operations and notify your supervisor. Keep operating the crane until
engineering or maintenance arrives.
B) Stop operations, notify your supervisor of the condition, and annotate the deficiency
on the ODCL.
C) Stop operation and notify engineering of the deficiency.
D) Note the deficiency on the ODCL and keep operating the crane until engineering
arrives to perform an evaluation. - ✔✔B) Stop operations, notify your supervisor of the
condition, and annotate the deficiency on the ODCL.
✔✔A portal crane with a capacity of 120,000 pounds is a crane.
A) Category 1
B) Category 2
C) Category 3
D) Category 4 - ✔✔A) Category 1
✔✔Crane Configuration: The Grove RT740 is equipped with a stowed tele-offsettable
boom extension. The whip line with a 7 and 1/2 ton headache ball is reeved over the
auxiliary boom nose. The main block is a
45-ton 3-sheave w/cheekplates.
Use the Grove RT-740 Rough Terrain Load Chart to answer this question:
Find the net capacity for the main hook reeved with 6 parts of line using a
75-foot boom length at a maximum radius of 32 feet.
A) 18,988 pounds
B) 16,888 pounds
C) 15,888 pounds
D) 14,978 pounds
E) 18,338 pounds - ✔✔E) 18338 ?
not B) 16,888 pounds