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GENERAL CRANE SAFETY EXAM 2024- 2025
QUESTIONS AND CORRECT ANSWERS (A+)
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, andCrane 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 quicklyand 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 c) Large geometric shapes d. Loads with multi-level attachment points e. Hazardous or explosive materials: B) Oxygen/Acetylene bottles in racks de-signed for lifting
What is the minimum amount of rope that shall be on a grooved drum anda smooth drum? a. There is no minimum b. 4 full wraps, 2 full wraps c. 2 full wraps, 3 full wraps d. 6 full wraps, 4 full wraps e. 1 full wrap, 2 full wraps: B) 4 full wraps, 2 full wraps The horizontal distance from the center of rotation of the crane to the centerof the hoist line(s) with load applied is called a. Boom Length b. Radius c. Lift Zone d. Quadrant e. Circumference: B) Radius What is two-blocking, and why is two-blocking dangerous? a. Two-blocking occurs when the hook contacts another block or hook on the crane. It is dangerous because the hook could damage the crane, causing loss of load control. b. Two-blocking occurs when the block or hook contacts the ground. It is dangerous because the wire rope may come off of the drum and drop theblock. c. Two-blocking occurs when the hook block comes in contact with the upper sheave block during hoisting of the hook. It is dangerous because it could result in damage to the crane, parting of the hoist lines, and dropping the load.: C) Two- blocking occurs when the hook block comes in contact with the uppersheave block during hoisting of the hook. It is dangerous because it could result indamage to the crane, parting of the hoist lines, and dropping the load. 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 fromswinging or rotating
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.: B) Report it immediately to your supervisor. While performing a pre-use check, the operator must check the wire ropesystem for all of the following EXCEPT- a. Excessive corrosion b. Damage of any kind c. Size and grade of wire rope d. Proper sheave movement e. Proper spooling on the drum: C) Size and grade of wire rope All of the following are principle parts of an overhead traveling craneEXCEPT- a. Operator's cab or pendant control b. End trucks c. Shackles and eyebolts d. Bridge girders e. Trolley with hoisting mechanism: C) Shackles and eyebolts If you find a deficiency that will affect the safe operation of the crane duringthe pre- operational check, all of the following actions must be taken EXCEPT- a. Operate that specific function again to ensure there is a problem b. Notify your supervisor c. Note the finding on the ODCL d. Secure the crane e. Follow supervisor's instructions: A) Operate that specific function again toensure there is a problem Components that provide protection for operation and maintenance per-sonnel 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
The rated load of the hook block installed on a crane may limit the crane'slifting capacity. a. True b. False: A) True When crane accidents happen or damage is found, you must do all of thefollowing 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 performsan evaluation In cold weather operation, what precautions should be taken during thepre- 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 nota 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 Wwould cause dropping, shifting, or uncontrolled movement of the load are a. Alterations and/or modifications b. Operational safety devices c. Load bearing parts
The Rigger-in-Charge has primary responsibility for determining the weight of an object to be hoisted; however, the operator must be satisfied thatthe 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 cranefor 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 expira-tion date, crane ID, and certified capacity During performance of your pre-operational check of the crane, you findminor deficiencies. What do you do? a. Stop, secure the crane, and notify your supervisor. Do not operate the craneuntil 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 untilthe deficiencies are corrected Why is it important to have bent or dented crane boom members inspectedand evaluated? 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 reducedduring the next load test: B) Because bends and dents can reduce the strength of a boom resulting in sudden collapse Most synthetic web slings should NOT be used in areas where tempera-tures exceed 194 degrees Fahrenheit. a. True b. False: A) True
To determine how much weight can be lifted with a crane, you must deductthe weight of from the gross capacity shown on the load chart. a. attachments, hooks, and blocks b .all rigging gear c. only the attachments d. the counterweights: B) all rigging gear Why should extreme caution be used when lifting loads from the water? a. Because the load weight may decrease on the crane due to loss of buoy-ancy and suction. b. Because you may fall in the water. c. Because the load on the crane may increase as the object leaves the waterdue to loss of buoyancy, water held inside the object, and/or surface tension (suction).: C) Because the load on the crane may increase as the object leaves thewater due to loss of buoyancy, water held inside the object, and/or surface tension (suction). Which of the following is used with a physical locking device placed at theenergy source? a. Lockout Tag b. Yellow Caution Tag c. Red Danger Tag d. Out of Service Tag: A) Lockout Tag 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. When is it permissible for an operator to leave the controls of a crane whilea load is suspended from the hook? a. When the operator is working more than one job b. When a Rigger stands by the load and prevents personnel from entering thearea
b. Use main hook c. Boom up and lower hoist d. Raise boom e. Use whip hoist: D) Raise boom Portal crane operators shall stop crane travel if materials or vehicles areinside crane clearance lines. a. True b. False: A) True 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 givenradius 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 asignal? 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 areaof 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 When performing "Pick and Carry" lifts with a mobile crane, which of thefollowing precautions is NOT a consideration? a. Load no higher than necessary b. Rotate locked in c. Boom to be as short as possible d. All tires off the ground e. Load close to the carrier and tied back: D) All tires off the ground The crane operator's main concern during crane operation is- a. Documentation b. Operating safely c. The weight of the load d. Ground loading: B) Operating safely Who is responsible for making certain that a load is properly secured and balanced before a lift is made? a. The rigging supervisor, but the Rigger will check for any defectsprior to the lift b. The crane operator, but the Rigger-In-Charge shall verify the load is properly secured prior to lifting c. The Rigger, but the Operator shall not lift a load if he or she detects anydefects in the attachment d. The crane walker, but the Rigger-In-Charge shall verify the load is properly secured: B) The crane operator, but the Rigger-In-Charge shall verify the load is properly secured prior to lifting Regardless of the method of communication used, all crane signals must a. hand signals
c. Category 3 d. Category 4: B) Category 2 Knowing the load's approximate center of gravity prior to rigging or liftinga load is important- a. so the load does not shift, tip, or swing out of radius b. to help calculate stress in each sling c. to help choose the correct rigging gear d. for all reasons listed above: D) for all reasons listed above Which of the following is NOT part of an ODCL check? a. Maintenance Check b. Operational Check c. Walk Around Check d. Machinery House Check e. Operator Cab Check: A) Maintenance Check Manufacturer's load rating charts for cranes must be- a. Posted outside the cab b. Visible to the Crane Rigger c. Available from the engineering department d. Avallable from the supervisor e. Visible to the operator: E) Visible to the operator What are the 5 principal parts of Category 1 and Category 4 cranes? a. Boom perator's cab, carier frame, bridge girders, and b. Operator's cab, bridge girders, wheels, motors, and trolley c. Operator's cab, boom, wheels, motors, and drums d. Boom, machinery house, rotate bearing, supporting structure, and travel system: D) Boom, machinery house, rotate bearing, supporting structure, and travel system While the members of the crane team have defined responsibilities, eachhave joint responsibilities as well. Each member is responsible for all of the following except
a. Stop operations whenever safety is in question b. Calculating the total load for each lift c. Attend the pre-lift briefing d. Keep non-essential personnel out of the operating area e. Support the GOAL of safe crane operation: B) Calculating the total load foreach lift What is the crane communications hand signal pictured with both armsextended, palms down, and the arms moving back and forth horizontally? a. Magnet is disconnected b. Dog Everything c. Move slowly d. Emergency stop e. Bridge travel: D) Emergency stop If an object has a volume of 200 cubic feet and the unit weight is 150 pounds per cubic foot, what is its weight? a. 350 pounds b. 450 pounds c. 30,000 pounds D) 300,000 pounds: D) 300,000 pounds Why should crane swing be relatively slow? a. so that the crane can be operated for longer periods b. to prevent outward swing of the load due to centrifugal force c. to keep the operator from having to correct misalignment d. to prevent the load from falling out of the rigging gear: B) to prevent outwardswing of the load due to centrifugal force A commercial truck mounted crane with a capacity of 14,000 pounds isa crane. a. Category 1 b. Category 2 c. Category 3 d. Category 4: D) Category 4
a. The Crane Operator b. The Dispatcher c. The Crane Supervisor d. The activity Medical Officer e. All listed are responsible: incorrect D) The activity Medical Officer What is the purpose of a hoist limit switch? a. to cause the operator to slow down b. to prevent rotation of the hook c. to cut off power to the crane when contacted d. to prevent over-travel of the hook block and the possibility of two-blocking- : D) to prevent over-travel of the hook block and the possibility of two-blocking Which of the following formulas would be used to find the volume of arectangular or square shaped 3 dimensional object? a. Length × Width × Height b. Length × Width x Area c. Base × Height divided by 2 d. None of the above.: A) Length × Width × Height Which tag(s) alerts operators to special instructions for operating theequipment? a. Caution Tag b. Lockout Tag c. Danger Tag d. Out of Service Tag: A) Caution Tag When taking any medications that can affect a person's capability to think,reason, or react in normal situations, the operator should do which of the following? a. Operate more cautiously. b. Report it to his or her supervisor. c. Stay at home. d. See how he or she feels driving to work. e. Nothing. It is a personal thing.: C) Stay at home.
What types of power does a Category 1 or 4 crane generally use, and whatis its source? a. Electric or hydraulic power supplied by a diesel engine b. Pneumatic and hydraulic power supplied by a compressor c. Hydraulic and water power supplied by a compressor d. Preumatic and electric power supplied by a backup generator: A) Electric or hydraulic power supplied by a diesel engine The crane operator is responsible for the pre-use of the crane. a. safety b. condition c. check: C) check Crane operators at naval activities may be required to operate various types of cranes for which they hold a license. Which of the following can bestensure operator proficiency and safety? a. Operate the crane in an open area until familiar with the specific character-istics of the crane b. Pass additional written and performance tests c. Operate at reduced speeds until confident and capable d. Be familiarized by a qualified person before operating the crane for the firsttime e. No additional tests are needed: D) Be familiarized by a qualified person before operating the crane for the first time The formula for determining the area of a triangular shaped object is- a. Base x Height divided by 2 b. Base x Height × 2 c. Length x Width x Height d. None of the above: A) Base x Height divided by 2 Components that support the load and upon failure would cause droppingor uncontrolled lowering of the load are a. alterations and/or modifications b. general safety devices c. load controlling parts
What is the bridge crane communication hand signal pictured with the arm extended forward and the hand opened, slightly raised, making a pushingmotion? a. Hoist b. Bridge travel c. Dog everything d. Move slowly e. Lower: B) Bridge travel Common modes of operation for typical OET bridge cranes are a. skew, hoist, and bridge b. hoist, trolley, and bridge c. travel, rotate, and hoist d. hoist, luffing, and trolley e. bridge, rotate, and extend: B) hoist, trolley, and bridge When traveling a hydraulic truck crane over the highway between job sites,always secure the to the carrier frame with a weak link to prevent damage. a. cribbing b. hooks c. outrigger pads d. rigging gear e. jib or extension: incorrect E) jib or extension When ground conditions for setting up a mobile crane are less than ideal, operators must a. reduce capacity b. use blocking or cribbing c. use sandbags on the outriggers d. perform a trial lift without load e. use extreme caution and slow speeds: B) use blocking or cribbing What is the crane communications hand signal pictured with the armextended, palm down, and the arm moving back and forth horizontally? a. Use main hoist
b. Emergency stop c. Go d. Swing e. Stop: E) Stop When setting up mobile cranes, the minimum clearance between the rotat-ing 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 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
- while the crane is traveling with a load in "pick and carry" mode
- any other time required by the crane OEM
- when landing a load
- whenever the operator leaves the cab Bridge cranes with rated capacities of less than 20,000 pounds are clas-sified as cranes. a. Category 1 b. Category 2 c. Category 3 d. Category 4: C) Category 3
