Rigging Certification Exam Quiz! Trivia

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  • 1/132 Questions

    If it is apparent that the crane operator has misunderstood a hand signal, the signal person should _________.

    • Climb up on the cab and knock on the door
    • Find a supervisor
    • Signal the operator to stop
    • Get away from the crane as quickly as possible
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About This Quiz


Rigging involves using different machinery and tools, and one needs to know how to use them to minimize the chances of an accident and ensure work is done smoothly. For you to be considered qualified, you need to pass a rigging exam an earn a certificate. This quiz is designed to check if your knowledge is enough to pass the exam. Give it a shot!

Rigging Certification Exam Quiz! Trivia - Quiz

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  • 2. 

    The amount of counterweight need t lift the boom can be verified by __________.

    • Asking the project manager

    • Using the load chart

    • Using all the weights on hand

    • Checking the project specifications

    Correct Answer
    A. Using the load chart
    Explanation
    The load chart provides information about the weight capacity and the corresponding counterweight required to lift the boom safely. It is a reliable and accurate source of information that helps determine the appropriate amount of counterweight needed for the lifting operation. The load chart takes into consideration various factors such as the boom length, angle, and radius, ensuring the safe and efficient operation of the crane. Therefore, using the load chart is the most appropriate method to verify the amount of counterweight needed to lift the boom.

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  • 3. 

    The part of a crane used to counter balance a load is a _________.

    • Boom

    • Mast

    • Counterweight

    • Headache ball

    Correct Answer
    A. Counterweight
    Explanation
    A counterweight is used in a crane to balance the load being lifted. It is typically a heavy weight that is attached to the opposite end of the crane's boom or jib. The counterweight helps to prevent the crane from tipping over due to the weight of the load. By placing the counterweight on the opposite side, it creates a counterbalance, allowing the crane to safely lift and move heavy loads without losing stability.

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  • 4. 

    A point on an object around which the weight is concentrated is the ____________.

    • Balanced weight

    • Tipping axis

    • Center of gravity

    • Tipping fulcrum

    Correct Answer
    A. Center of gravity
    Explanation
    The center of gravity refers to the point on an object where the weight is concentrated. It is the point at which the object can be balanced, and any force applied to it will cause it to rotate around that point. This point is important in determining the stability and equilibrium of an object.

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  • 5. 

    The three parts of a wire rope are the wire, the strands, and the _________.

    • Monel

    • Center wire

    • Core

    • Lang

    Correct Answer
    A. Core
    Explanation
    The three parts of a wire rope are the wire, the strands, and the core. The core of a wire rope provides stability and strength to the overall structure. It is typically made of materials such as fiber, steel, or synthetic materials like polypropylene. The core helps to maintain the shape and integrity of the wire rope, preventing it from collapsing or deforming under heavy loads.

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  • 6. 

    The crane assembly area must be ________.

    • Close to or at the lift location

    • On a hill to make it easier to lift the boom

    • A firm and level surface

    • Close to the main access road

    Correct Answer
    A. A firm and level surface
    Explanation
    The crane assembly area must be a firm and level surface in order to ensure stability and safety during the lifting process. A firm surface provides a solid foundation for the crane to operate on, preventing it from sinking or shifting. A level surface helps to distribute the weight evenly and maintain balance, reducing the risk of accidents or structural damage. Additionally, a firm and level surface allows for smooth movement of the crane and its components, facilitating efficient assembly and disassembly.

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  • 7. 

    Powered chain hoist must only be used by ________.

    • Those who can't lift loads manually

    • Mechanical engineers

    • Qualified persons

    • Rigging trainees

    Correct Answer
    A. Qualified persons
    Explanation
    Powered chain hoists are heavy-duty lifting equipment that require proper training and knowledge to operate safely. Qualified persons are individuals who have undergone specific training and have the necessary expertise to operate such equipment. They have the knowledge and skills to handle the complexities and potential hazards associated with powered chain hoists. Therefore, they are the appropriate individuals to use powered chain hoists to ensure the safety of both themselves and others in the vicinity.

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  • 8. 

    A lift in which the weight of the load and rigging exceeds 75 percent of the crane capacity is referred to as a(n) __________.

    • Critical lift

    • Ordinary lift

    • Hazardous lift

    • Multi-crane lift

    Correct Answer
    A. Critical lift
    Explanation
    A lift in which the weight of the load and rigging exceeds 75 percent of the crane capacity is referred to as a critical lift. This term is used to describe a lift that requires special attention and precautions due to the high risk involved. It signifies that the lift is at or near the maximum capacity of the crane, making it more dangerous and requiring additional safety measures to be taken.

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  • 9. 

    Identification tags for slings must include the ________.

    • Type of protective pad to use

    • Type of damaged sustained during use

    • Color of the tattle-tail

    • Manufacturer's name and trademark

    Correct Answer
    A. Manufacturer's name and trademark
    Explanation
    Identification tags for slings must include the manufacturer's name and trademark. This is important because it allows users to easily identify the manufacturer of the sling, which can be useful for quality control and warranty purposes. The manufacturer's name and trademark also provide information about the origin and reputation of the sling, ensuring that it meets safety standards and regulations. Additionally, including the manufacturer's name and trademark on the identification tags helps to prevent counterfeit products from entering the market, ensuring the authenticity and reliability of the slings.

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  • 10. 

    The hitch made by wrapping the sling around the load and then passing one eye of the sling through the shackle is called the _______ hitch.

    • Basket

    • Bridle

    • Choker

    • Grommet

    Correct Answer
    A. Choker
    Explanation
    The hitch made by wrapping the sling around the load and then passing one eye of the sling through the shackle is called the choker hitch.

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  • 11. 

    The most important rigging precaution is determining the weight of all loads before attempting to lift them.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Determining the weight of all loads before attempting to lift them is important in rigging because it helps ensure that the lifting equipment being used is appropriate for the load. If the weight of the load is underestimated, it can lead to overloading of the equipment, which can result in accidents, damage to the equipment, or even collapse of the lifting system. Therefore, accurately determining the weight of the loads is crucial for the safety and efficiency of the rigging operation.

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  • 12. 

    Barricades should be used to isolate the area of an overhead lift to ________.

    • Prohibit crane movement

    • Prevent injury to personnel on the ground

    • Help riggers find the landing zone

    • Improve signal person visibility

    Correct Answer
    A. Prevent injury to personnel on the ground
    Explanation
    Barricades should be used to isolate the area of an overhead lift to prevent injury to personnel on the ground. This is because the barricades create a physical barrier that keeps people at a safe distance from the lifting operation. By preventing access to the area, the risk of accidents or injuries caused by falling objects or collisions with the crane is minimized. The use of barricades helps to ensure the safety of ground personnel by keeping them out of harm's way during the lifting operation.

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  • 13. 

    For each crane, guidelines and instructions for installing various boom attachments and components are _______.

    • Contained in the operator's safety manual

    • Listed on the manufacturer's website

    • The same regardless of serial number, as long as the crane is manufactured by the same company

    • The same regardless of model number, as long as the crane is manufactured by the same company

    Correct Answer
    A. Contained in the operator's safety manual
    Explanation
    The guidelines and instructions for installing various boom attachments and components are contained in the operator's safety manual. This manual provides detailed information on how to safely operate and maintain the crane, including specific instructions for installing different attachments and components. It is important for crane operators to consult the safety manual to ensure that they follow the correct procedures and guidelines for installation, as this helps to prevent accidents and ensure the safe operation of the crane.

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  • 14. 

    Synthetic slings must be inspected ________.

    • The first time they are ever used

    • Before every use

    • Every fifth time they are used

    • By sight only

    Correct Answer
    A. Before every use
    Explanation
    Synthetic slings must be inspected before every use to ensure their safety and effectiveness. Regular inspections help identify any potential damage or wear and tear that could compromise the integrity of the sling. By inspecting the sling before each use, any issues can be detected early on and appropriate measures can be taken to prevent accidents or failures during lifting operations. This proactive approach ensures that the synthetic slings are in good condition and fit for purpose, minimizing the risk of accidents and ensuring the safety of personnel and equipment.

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  • 15. 

    A chain sling that ______ must not be used.

    • Exhibits links stretched from overloading

    • Exhibits paint on more than half the links

    • Is more than a year old

    • Has an identification tag

    Correct Answer
    A. Exhibits links stretched from overloading
    Explanation
    A chain sling that exhibits links stretched from overloading must not be used. This is because stretched links indicate that the sling has been subjected to excessive weight or force, which can compromise its strength and integrity. Using a chain sling with stretched links can lead to failure and potential accidents or injuries. It is important to regularly inspect chain slings for any signs of damage or wear and replace them if necessary to ensure safe and effective use.

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  • 16. 

    Mixing rigging hardware of different lifting capacities is okay, as long as the capacity of one of the hardware items exceeds the weight of the load.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Mixing rigging hardware of different lifting capacities is not okay, even if the capacity of one of the hardware items exceeds the weight of the load. It is essential to use rigging hardware that is designed and rated for the specific load being lifted. Mixing hardware with different capacities can compromise the safety and stability of the lifting operation, leading to accidents and damage. It is crucial to follow proper rigging practices and ensure that all hardware used is appropriately rated and compatible for the load being lifted.

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  • 17. 

    What action is signaled by tapping your fist on your head, then using regular hand signals?

    • Use main hoist

    • Lower

    • Use whip line

    • Raise boom and lower load

    Correct Answer
    A. Use main hoist
    Explanation
    Tapping your fist on your head is a signal commonly used in construction and rigging to indicate the use of the main hoist. This gesture is often followed by regular hand signals to provide further instructions or communicate additional actions.

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  • 18. 

    To allow controlled rotation of the load for position, a(n) _________ is used.

    • Tag line

    • Equalizer beam

    • Hoist line

    • Safe-load indicator

    Correct Answer
    A. Tag line
    Explanation
    A tag line is used to allow controlled rotation of the load for position. It is a line or rope that is attached to the load and used to guide or control its movement. By pulling or releasing the tag line, the load can be rotated and positioned accurately. This helps to ensure that the load is placed in the desired location without any sudden or uncontrolled movements.

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  • 19. 

    At which sling angle does each sling carry the full weight of the load?

    • 10 degrees

    • 20 degrees

    • 30 degrees

    • 40 degrees

    Correct Answer
    A. 30 degrees
    Explanation
    At a sling angle of 30 degrees, each sling carries the full weight of the load. As the sling angle increases, the load is distributed between the slings, reducing the amount of weight each sling carries. At 30 degrees, the load is evenly distributed between the slings, resulting in each sling carrying the full weight of the load.

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  • 20. 

    The dead end of the wire rope experiences the weight of the load.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The dead end of the wire rope does not experience the weight of the load. The weight of the load is typically carried by the working end of the wire rope, while the dead end is usually secured or attached to a fixed point. Therefore, the statement is false.

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  • 21. 

    The U-bolt type of clip consists of the U-bolt, the nuts and the ________.

    • Socket

    • Clip ring

    • Saddle

    • Clip harness

    Correct Answer
    A. Saddle
    Explanation
    The U-bolt type of clip consists of the U-bolt, the nuts, and the saddle. The saddle is a curved piece that fits around the object being secured, providing support and holding it in place. It is an essential component of the U-bolt clip as it helps distribute the load evenly and prevents the U-bolt from slipping or damaging the object.

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  • 22. 

    To reduce internal friction and prevent corrosion, a wire rope should be ________ on a regular basis.

    • Replaced

    • Inspected

    • Lubricated

    • Reeved

    Correct Answer
    A. Lubricated
    Explanation
    To reduce internal friction and prevent corrosion, a wire rope should be lubricated on a regular basis. Lubrication helps to reduce friction between the individual strands of the wire rope, allowing them to move more smoothly and freely. This not only helps to prevent wear and tear on the rope but also reduces the likelihood of internal corrosion due to moisture or other environmental factors. Regular lubrication ensures that the wire rope remains in good condition and extends its lifespan.

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  • 23. 

    All pins should be secured with __________.

    • Wire rope

    • Cotter pins

    • Bolts

    • Nuts

    Correct Answer
    A. Cotter pins
    Explanation
    Cotter pins are used to secure pins in place by inserting them through a hole and bending the ends to prevent them from slipping out. They provide a reliable and secure fastening method, especially in situations where vibration or movement may be present. Wire rope, bolts, and nuts are not specifically designed for securing pins and may not provide the same level of stability and safety as cotter pins. Therefore, cotter pins are the appropriate choice for securing all pins.

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  • 24. 

    A bolt is preferred over a shackle pin because it will carry more weight.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    A bolt is not preferred over a shackle pin because it will carry more weight. In fact, a shackle pin is preferred over a bolt because it is designed to handle heavy loads and provide a secure connection. A bolt may not have the same strength and load-bearing capacity as a shackle pin, making it less suitable for carrying heavy weights. Therefore, the statement is false.

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  • 25. 

    When calculating the weight of the load, the rigging and hardware should not be considered.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because when calculating the weight of the load, the rigging and hardware should be considered. The weight of the load includes not only the actual item being lifted, but also the weight of any equipment or attachments used to lift and secure the load. Ignoring the weight of the rigging and hardware could lead to miscalculations and potential safety hazards.

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  • 26. 

    The efficiency rating of a wire rope assembly is a percentage of the _________.

    • Abrasion ratio

    • Applied load

    • Nominal breaking strength

    • Parts of a line

    Correct Answer
    A. Nominal breaking strength
    Explanation
    The efficiency rating of a wire rope assembly is a percentage of the nominal breaking strength. This means that the efficiency rating indicates how close the wire rope assembly is to its maximum strength before it breaks. A higher efficiency rating implies that the wire rope assembly is stronger and more reliable, while a lower efficiency rating suggests that it may be closer to its breaking point and less reliable.

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  • 27. 

    Placing a rope in sheaves i known as _________.

    • Sheaving

    • Reeving

    • Terminating

    • Winding

    Correct Answer
    A. Reeving
    Explanation
    Reeving is the correct answer because it refers to the act of placing a rope in sheaves. Sheaves are grooved wheels or pulleys that are used to guide and change the direction of a rope. Reeving involves threading the rope through the sheaves in a specific manner to create a mechanical advantage or to enable the rope to perform a specific task. This term is commonly used in industries such as sailing, rigging, and material handling.

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  • 28. 

    The easiest method for determining the parts of a line needed for a lift is to _________.

    • Divide the total weight by the nominal breaking strength

    • Check the OSHA regulations

    • Check the load chart

    • Calculate the D/d ratio

    Correct Answer
    A. Check the load chart
    Explanation
    To determine the parts of a line needed for a lift, the easiest method is to check the load chart. The load chart provides information about the maximum weight capacity and the corresponding parts required for lifting different loads. By referring to the load chart, one can easily identify the specific parts needed for a particular lift based on the weight of the load.

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  • 29. 

    Slings are attached together using _________.

    • Spacers

    • Sling eyes

    • Shackles

    • Lifting lugs

    Correct Answer
    A. Shackles
    Explanation
    Shackles are used to attach slings together. Shackles are a type of fastener that consists of a loop of metal with a pin or bolt across the opening. They are designed to provide a secure and reliable connection between slings, ensuring that the load is properly supported during lifting operations. Spacers, sling eyes, and lifting lugs are not typically used for attaching slings together.

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  • 30. 

    When the signal person gives the Dog everything signal, the operator is expected to ________.

    • Turn the machine

    • Travel the machine

    • Retract the boom sections

    • Make no machine movement

    Correct Answer
    A. Make no machine movement
    Explanation
    When the signal person gives the Dog everything signal, it means that the operator should not make any machine movement. This signal is usually used to indicate that the operator should hold all machine functions and not perform any action. This could be due to a safety concern or when there is a need to pause all machine operations temporarily.

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  • 31. 

    Before adding or removing counterweights, _________.

    • Locate the crane on a firm, level surface

    • Retract the outriggers

    • Chock the crawlers

    • Lockout forward motion control

    Correct Answer
    A. Locate the crane on a firm, level surface
    Explanation
    Before adding or removing counterweights, it is important to locate the crane on a firm, level surface. This is necessary to ensure stability and prevent any accidents or mishaps while manipulating the counterweights. A firm and level surface provides a solid foundation for the crane, reducing the risk of tipping or imbalance. Therefore, it is crucial to properly position the crane before making any adjustments to the counterweights.

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  • 32. 

    All of the following are mobile construction cranes except _________. 

    • Gantry

    • Rough terrain

    • Crawler

    • Truck mounted

    Correct Answer
    A. Gantry
    Explanation
    Gantry cranes are not considered mobile construction cranes. Gantry cranes are typically used in shipyards or warehouses and are stationary, whereas mobile construction cranes like rough terrain, crawler, and truck-mounted cranes are designed to be easily moved to different job sites. Therefore, gantry is the correct answer as it does not belong to the category of mobile construction cranes.

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  • 33. 

    The width between the crawler tracks on a crawler crane affects its ________.

    • Fulcrum

    • Stability

    • Reach

    • Quadrant

    Correct Answer
    A. Stability
    Explanation
    The width between the crawler tracks on a crawler crane affects its stability. A wider width between the tracks provides a larger base, increasing stability and reducing the risk of tipping over. On the other hand, a narrower width can make the crane less stable and more prone to tipping. Therefore, the width between the crawler tracks is an important factor in determining the stability of a crawler crane.

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  • 34. 

    Long loads are supported during lifting operations with _________.

    • Spreader beams

    • Equalizer beams

    • Compound equalizer plates

    • Serrated clamps

    Correct Answer
    A. Spreader beams
    Explanation
    Spreader beams are used to support long loads during lifting operations. They are designed to distribute the weight of the load evenly across multiple points, providing stability and preventing damage to the load. Spreader beams typically have adjustable hooks or attachment points at each end, allowing them to be easily connected to the lifting equipment. By using spreader beams, the load can be lifted and transported safely and efficiently.

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  • 35. 

    The ratchet jack can lift heavier loads than the screw jack or hydraulic jack

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The given statement is false because the ratchet jack cannot lift heavier loads than the screw jack or hydraulic jack. Ratchet jacks are typically used for lighter loads and are not designed to handle heavy weights. Screw jacks and hydraulic jacks, on the other hand, are specifically designed to lift heavy loads and have a much higher weight capacity. Therefore, the ratchet jack is not capable of lifting heavier loads compared to the screw jack or hydraulic jack.

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  • 36. 

    The component that actually transfers the power of the crane to the wire rope is the __________.

    • Sheaves

    • Load hook

    • Load block

    • Hoist drum

    Correct Answer
    A. Hoist drum
    Explanation
    The hoist drum is responsible for transferring the power of the crane to the wire rope. It is a cylindrical device that the wire rope wraps around, and as the drum rotates, it pulls or releases the wire rope, allowing the crane to lift or lower loads. The hoist drum is an essential component in the crane's lifting mechanism, enabling it to transfer power effectively and safely.

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  • 37. 

    The first concern of crane assembly is to _________.

    • Select a good location

    • Make sure you have all the pins and bolts

    • Calculate the counterweight needed

    • Inspect all the boom sections

    Correct Answer
    A. Select a good location
    Explanation
    The first concern of crane assembly is to select a good location. This is important because the location needs to be suitable for the crane to operate safely and efficiently. Factors such as ground stability, accessibility, and proximity to the work area need to be considered when choosing a location. By selecting a good location, the crane assembly can ensure that the crane can be set up and used effectively without any potential hazards or obstacles.

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  • 38. 

    After the boom parts are unloaded they should be __________.

    • Placed for assembly

    • Properly lubricated

    • Connected with pins

    • Inspected for damage

    Correct Answer
    A. Inspected for damage
    Explanation
    After the boom parts are unloaded, they should be inspected for damage. This is important to ensure that the parts are in good condition and free from any defects or issues that may affect their performance or safety. By inspecting the parts for damage, any potential problems can be identified and addressed before proceeding with assembly or use. This helps to maintain the quality and reliability of the boom parts and ensures that they will function properly once assembled.

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  • 39. 

    The boom base of a crane is sometimes called the __________.

    • Tracks

    • Boom

    • Lower end

    • Boom butt

    Correct Answer
    A. Boom butt
    Explanation
    The boom base of a crane is sometimes called the "boom butt" because it refers to the lower end of the crane's boom. The boom butt is the part of the boom that is closest to the ground and provides stability and support for the crane. It is where the boom connects to the crane's base and helps to distribute the weight and forces exerted by the crane during operation.

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  • 40. 

    The piece of rigging hardware used to couple the end of a wire rope to eye fittings, hooks, or other connections is a(n) ________.

    • Eyebolt

    • Shackle

    • Clamp

    • U-bolt

    Correct Answer
    A. Shackle
    Explanation
    A shackle is a piece of rigging hardware that is used to couple the end of a wire rope to eye fittings, hooks, or other connections. It is a U-shaped metal device with a pin or bolt across the opening, allowing it to be easily attached and detached from various connections. Shackles are commonly used in industries such as construction, maritime, and transportation to securely fasten and connect loads.

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  • 41. 

    When calculating the WLL of a double wrapped choker hitch, the value must be doubled.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because when calculating the Working Load Limit (WLL) of a double wrapped choker hitch, the value does not need to be doubled. A double wrapped choker hitch refers to a method of securing a load by wrapping the sling around the load twice and then passing the free end through the choker loop. In this case, the WLL remains the same as for a single wrapped choker hitch. Doubling the value would result in an incorrect calculation and potentially lead to overloading the sling.

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  • 42. 

    The two critical areas to inspect on a sheave are the bearings and the ________.

    • Safety latch

    • Rope terminations

    • Groove dimentions

    • Gauge

    Correct Answer
    A. Groove dimentions
    Explanation
    The correct answer is "groove dimensions". When inspecting a sheave, it is important to check the groove dimensions to ensure that they are within the specified tolerances. This is crucial because the groove dimensions directly affect the performance and efficiency of the sheave. If the groove dimensions are incorrect, it can lead to issues such as excessive wear on the rope or improper alignment, which can ultimately result in equipment failure or accidents. Therefore, inspecting the groove dimensions is essential for maintaining the safety and functionality of the sheave.

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  • 43. 

    The boom identification number is used _________.

    • By the manufacturer for tracking

    • To date-stamp each section

    • Only for inventory control

    • To prevent mixing boom sections of different types

    Correct Answer
    A. To prevent mixing boom sections of different types
    Explanation
    The boom identification number is used to prevent mixing boom sections of different types. This means that each boom section is assigned a unique identification number, which helps in distinguishing and keeping track of different types of boom sections. By using these identification numbers, workers can ensure that they are using the correct boom sections and avoid any potential mixing of sections that may not fit or function properly together.

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  • 44. 

    The piece of rigging hardware designed to move loads such as steel plates or concrete panels without the use of slings is called a ________

    • Shackle clamp

    • C-clamp

    • Lifting clamp

    • U-bolt clamp

    Correct Answer
    A. Lifting clamp
    Explanation
    A lifting clamp is a piece of rigging hardware specifically designed to move loads, such as steel plates or concrete panels, without the use of slings. It is used to securely grip and lift the load, providing a safe and efficient method of handling heavy objects. Lifting clamps are typically made of durable materials such as steel and are designed to distribute the load evenly, preventing damage to the load and ensuring stability during lifting operations.

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  • 45. 

    When sling angle decreases, sling stress ________.

    • Stays the same

    • Decreases

    • Increases

    • Becomes zero

    Correct Answer
    A. Increases
    Explanation
    When the sling angle decreases, the sling stress increases. This is because as the angle between the sling and the load decreases, the load is exerting more force on the sling. This increased force leads to higher stress on the sling, making it more likely to fail or be damaged. Therefore, as the sling angle decreases, the sling stress increases.

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  • 46. 

    The greater the sling stress, __________.

    • The less you have to worry about the lift's safety

    • The greater the effect on the lift's safety

    • The safer the lift

    • The more slings you must use

    Correct Answer
    A. The greater the effect on the lift's safety
    Explanation
    The correct answer suggests that as the sling stress increases, it has a greater effect on the lift's safety. This means that higher levels of sling stress can potentially compromise the safety of the lift. Therefore, it is important to monitor and manage sling stress to ensure a safe lifting operation.

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  • 47. 

    All rope ends must be welded and tapered to prevent fraying.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because while it is important to weld rope ends to prevent fraying, tapering is not necessary. Welding alone is sufficient to secure the rope ends and prevent them from unraveling. Tapering is a technique used to make the rope ends more streamlined and easier to pass through loops or openings, but it is not a requirement to prevent fraying.

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  • 48. 

    Damaged flanges on a sheave can cause the wire rope to ________.

    • Wobble

    • Stretch

    • Birdcage

    • Jump out of the groove

    Correct Answer
    A. Jump out of the groove
    Explanation
    Damaged flanges on a sheave can cause the wire rope to jump out of the groove. When the flanges are damaged, they may not provide proper support and guidance for the wire rope. As a result, the wire rope can become misaligned and dislodged from its intended position within the groove. This can lead to instability and potential failure of the system, as the wire rope may not be able to effectively transmit forces or maintain proper tension.

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  • 49. 

    The crane operator and the assemblers must have ___________.

    • The same instruction book

    • A way to communicate

    • Crane operation training

    • Commercial driver's licenses

    Correct Answer
    A. A way to communicate
    Explanation
    The crane operator and the assemblers must have a way to communicate in order to coordinate their actions effectively. This is crucial for ensuring the safety and efficiency of the operation. Without clear communication, there is a risk of miscommunication, errors, and accidents. By having a way to communicate, such as through radios or hand signals, the crane operator and assemblers can easily convey instructions, share information, and coordinate their movements, leading to a smooth and successful operation.

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  • Mar 22, 2023
    Quiz Edited by
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  • Nov 03, 2016
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    Brandon
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