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A series of questions and answers related to general crane safety, designed to test and reinforce knowledge of safe crane operation practices. It covers topics such as crane team composition, operating procedures for floating cranes, telescoping boom safety, licensing requirements, complex lift considerations, rope management, load radius determination, two-blocking hazards, tagline usage, weight calculation, expiration dates, communication methods, jib boom functionality, inspection protocols, and pre-operational checks. The questions aim to ensure operators understand and adhere to safety standards to prevent accidents and ensure safe lifting operations. This resource is valuable for crane operators, supervisors, and safety personnel seeking to enhance their understanding of crane safety protocols and best practices. It provides a comprehensive overview of essential safety measures and operational guidelines, promoting a safer working environment and reducing the risk of accidents.
Typology: Exams
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The minimum crane team for a mobile crane on outriggers would consist of-
A) The Crane Operator, Rigger Supervisor, and Crane Rigger
B) The Crane Operator, Crane Supervisor, Rigger Supervisor, and
Crane Rigger
C) The Crane Operator, Crane Supervisor, and Crane Rigger
D) The Crane Operator and Rigger-in-Charge
E) The Crane Operator, Crane Walker, and Crane Rigger
C) The Crane Operator, Crane Supervisor, and Crane Rigger
When operating floating cranes, you must start swinging or rotating quickly and stop smoothly to prevent excessive barge list.
A) True
B) False
B) False
Extending a telescoping boom without lowering the hoist may result in "two-blocking" the crane.
A) True
B) False
A) True
All of the following require a license to operate EXCEPT a(n)-
A) Cab-operated category 3 bridge crane
B) Mobile hydraulic truck crane
C) Non-cab operated category 3 bridge crane
D) Articulating boom category 4 crane
E) Floor-operated category 2 bridge crane
C) Non-cab operated category 3 bridge crane
Which of the following lift types would NOT be considered a complex lift?
A) Multiple-crane lifts
B) Oxygen/Acetylene bottles in racks designed for lifting
O C) Large geometric shapes
D) Loads with multi-level attachment points
E) Hazardous or explosive materials
B) Oxygen/Acetylene bottles in racks designed for lifting
What is the minimum amount of rope that shall be on a grooved drum and a smooth drum?
A) There is no minimum
B) 4 full wraps, 2 full wraps
C) 2 full wraps, 3 full wraps
When should a tagline be used during lifting operations?
A) when lifting a load over or near electrical transmission lines
B) to prevent the load from swinging or rotating
C) when the supervisor approves their use
D) only when lifting the load to extreme heights
B) to prevent the load from swinging or rotating
What is the weight of a 24 square foot, 2 inch thick aluminum plate with a unit weight of 15 lbs. per square foot of material per inch of thickness?
A) 348 pounds
B) 720 pounds
C) 6,720 pounds
D) 60 pounds
E) 120 pounds
B) 720 pounds
The two expiration dates that are of particular importance to crane operators are-
A) Vehicle registration expiration date
B) Hydraulic oil expiration date
C) CAC card expiration date
D) The certification expiration date of the crane
E) The crane operator's license expiration date
D) The certification expiration date of the crane
E) The crane operator's license expiration date
Which of the following is NOT an acceptable method of communication between the signal person and the crane operator?
A) Signal Flags
B) Direct Voice
C) Hand Signals
D) Sound-powered Phones
E) Approved Radios
A) Signal Flags
What is a jib boom?
A) A boom that is attached to the main boom to allow rotation of the load
B) An extension attached to the main boom used when lifting light loads to a higher elevation than that permitted by the main boom
C) A boom that is used to lift extremely heavy loads
B) An extension attached to the main boom used when lifting light loads to a higher elevation than that permitted by the main boom
If you find cracking or flaking paint on a welded joint of a structural component on the boom, you should
A) Look closer to see if it is a crack.
B) Report it immediately to your supervisor.
C) Do nothing as it is not significant.
D) Make a mental note to investigate it later.
E) Note it on the ODCL, but do not report it.
C) Note the finding on the ODCL
D) Secure the crane
E) Follow supervisor's instructions
A) Operate that specific function again to ensure there is a problem
Components that provide protection for operation and maintenance personnel working on or in the path of cranes are?
A) Operational Safety Devices
B) Alterations/Modifications
C) Load Controlling Parts
D) Load Bearing Parts
E) General Safety Devices
E) General Safety Devices
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
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.
not B) 16,888 pounds
The crane operator can check the accuracy of the load moment indicator (LMI) against known weights and radii.
A) True
B) False
A) True
When making personnel lifts, the capacity of a mobile crane for a given radius is reduced by-
A) 25%
B) 50%
C) 75%
D) 80%
E) 100%
B) 50%
What should an operator do if he or she is not sure of the meaning of a signal?
A) Place the load in a safe area
B) Keep operating as long as he or she can see the load
C) Stop operation until the meaning of the signal is understood
D) Guess at what the signal means until the Rigger signals to stop operations
C) Stop operation until the meaning of the signal is understood
Which of the following can affect the crane's capacity?
A) Out of level
B) Outrigger position
C) Side loading
D) Load swing
E) Any of the listed factors above
E) Any of the listed factors above
If an object is 6 feet long, 4 feet wide, and 2 inches thick, what is the area of the object?
A) 4 square feet
B) 4 cubic feet
C) 24 square feet
D) 24 cubic feet
E) 48 square feet
C) 24 square feet
New shackles put into the weight handling equipment program are required to have all of the following markings EXCEPT-
A) Date of manufacture
B) Rated load
C) Manufacturer name, logo, or trademark
C) Manufacturer name, logo, or trademark
What is the definition of "boom length"?
A) the distance from the boom "heel" or "foot" pins to the jib attachment pins
B) the distance from the rotate base to the center of the boom tip sheave
C) the distance from the center of rotation on the crane to the center of the boom tip sheave
D) the distance from the boom "heel" or "foot" pins to the center of the boom tip sheave
D) the distance from the boom "heel" or "foot" pins to the center of the boom tip sheave
On cranes, lowering the boom with the hook blocks raised will most likely result in
A) tipping
B) two-blocking
C) overloading
D) insufficient hook height
E) none of the above
B) two-blocking
Is it necessary for the operator to see the load or work area?
A) Not if there is a designated signal person who is in control of the lift and is in view of the operator, or if the signal giver is in constant radio contact with the operator.
B) Not if the operator knows how far to hoist or lower the load.
C) Yes, at all times during a lift.
C) Yes, at all times during a lift.
A floating crane with a capacity of 200,000 pounds is a ________crane.
A) Category 1
B) Category 2
C) Category 3
D) Category 4
A) Category 1
What is the minimum required clearance when operating a crane in the vicinity of overhead electrical transmission lines with a voltage of 50,000 volts or less?
A) 5 feet
B) 10 feet
C) 20 feet
D) 30 feet
E) 40 feet
B) 10 feet
Which of the following steps DOES NOT apply to securing lattice boom cranes?
A) Place the boom at approximately 45 degrees
B) Disengage the master clutch
C) Lock down all foot brakes
D) Retract the boom fully
E) Engage all hoist pawls
E) Engage all hoist pawls
Sling angles affect the actual stress on each leg of the sling. Lowering the angle measured from the horizontal will-
A) Not change the actual stress on each leg
B) Double the stress on each leg
C) Cause the sling to be overloaded
D) Increase the stress on each leg
E) Decrease the stress on each leg
D) Increase the stress on each leg
Side loading a crane boom by dragging loads or lifting a load with a non-vertical hoist may result in
A) Destructive stresses placed on the boom and sheaves
B) Possible overload due to swinging of the load after lift-off
C) Uncontrolled movement of the load and injury to personnel
D) Any of the listed factors above
D) Any of the listed factors above
A pillar-jib crane with a capacity of 22,000 pounds is a crane.
A) Category 1
B) Category 2
C) Category 3
D) Category 4
B) Category 2
Crane operators are responsible for all of the following EXCEPT-
A) Doing a thorough pre-use check
B) Maintaining constant communication with the signalman
C) Lifting and landing all loads safely
D) Slowing down when signals are unclear
D) Slowing down when signals are unclear
How is electrical current conveyed from the revolving portion of the crane to the lower crane structure?
A) through the electrical panels
B) through transistors
C) through the main circuit board
D) through the collector ring system
D) through the collector ring system
Why should the hook be positioned directly over the load when attaching the load?
A) to avoid side loading of the boom and dragging the load as it is picked up
B) to make it harder to attach the rigging gear to the load
C) so the Riggers can drag the load into place
D) so the crane operator can place a side pull on the crane
A) to avoid side loading of the boom and dragging the load as it is picked up