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Red Seal Tower Crane Operator practice questions

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Question 1Occupational health, safety, and environmental practices

On a tower crane site, which document must be completed and reviewed with the crew before hoisting operations begin each shift?

  1. The operator's apprenticeship transcript
  2. The daily pre-use inspection and lift plan briefing Correct answer.
  3. The crane manufacturer's warranty certificate
  4. The project's concrete pour schedule

Explanation

A pre-use inspection confirms the crane is in safe working order, and a lift plan briefing ensures everyone understands the hazards, loads, and signals before work starts. Together they form the documented daily safety control required on tower crane sites. Warranty, training records, and pour schedules do not authorize or control a lift.

Question 2Occupational health, safety, and environmental practices

A tower crane operator notices the anemometer reading is rising toward the manufacturer's maximum permissible wind speed for lifting. What is the correct action?

  1. Stop lifting operations and follow the site's high-wind procedure Correct answer.
  2. Continue lifting but reduce the load by half
  3. Lower the boom angle and keep working
  4. Increase hoist speed to finish the lifts faster

Explanation

Manufacturer wind-speed limits are absolute operating limits; once approached or exceeded, lifting must stop and the site's high-wind procedure (often including weathervaning and leaving the crane in a safe configuration) is followed. Load reduction or faster hoisting does not remove the loss-of-control hazard from wind.

Question 3Occupational health, safety, and environmental practices

What is the primary purpose of a barricade or exclusion zone under and around a tower crane's operating radius?

  1. To keep the crane's swing path clear of unauthorized pedestrians and workers Correct answer.
  2. To store rigging gear between lifts
  3. To mark where concrete trucks may park
  4. To provide a rest area for the rigging crew

Explanation

An exclusion zone keeps people out from under suspended loads and out of the slewing and trolleying path, which is where struck-by and dropped-load injuries occur. It is a pedestrian and worker separation control, not a storage or parking area.

Question 4Occupational health, safety, and environmental practices

A rigger finds a synthetic lifting sling with a deep cut through the outer cover and visible core damage. What is the correct practice?

  1. Wrap the damaged area with tape and use it for light loads
  2. Tag it out of service and remove it from the site Correct answer.
  3. Use it only for loads under half its rated capacity
  4. Shorten the sling so the damage is outside the choke point

Explanation

Any sling with cuts, core damage, or other defects that affect its strength must be removed from service immediately and tagged so it cannot be reused. Field repairs or derating by the user are not permitted because the remaining capacity cannot be verified.

Question 5Occupational health, safety, and environmental practices

Which personal protective equipment is essential for a tower crane operator who must climb the mast ladder to reach the cab?

  1. A high-visibility vest only
  2. Hearing protection only
  3. Steel-toe boots only
  4. A full-body harness with a fall-arrest lanyard attached to the ladder's fall-arrest system Correct answer.

Explanation

Climbing a tower crane mast exposes the operator to a fall hazard, so a full-body harness connected to the ladder's engineered fall-arrest system is required. High-visibility clothing, boots, and hearing protection are useful but do not arrest a fall.

Question 6Occupational health, safety, and environmental practices

During a lift, the operator loses radio contact with the rigger who is guiding the load. What should the operator do?

  1. Continue the lift using hand signals from any worker nearby
  2. Stop the lift and hold the load until communication is restored Correct answer.
  3. Speed up to complete the lift before the situation changes
  4. Lower the load quickly to the nearest surface

Explanation

Loss of communication removes the operator's ability to receive stop and emergency signals, so the safe response is to stop and hold until contact is re-established. Continuing with untrained signalers or rushing the load creates struck-by and dropped-load hazards.

Question 7Occupational health, safety, and environmental practices

Which of the following is a required element of a tower crane's daily pre-use inspection?

  1. Verifying the crane's resale value
  2. Confirming the color of the crane's paint
  3. Checking the operation of the limit switches and the condition of the wire rope Correct answer.
  4. Reviewing the project's payroll records

Explanation

Daily pre-use inspections focus on safety-critical systems, including limit switches that prevent overhoisting and over-lowering and wire rope condition for broken wires, wear, and corrosion. Commercial, payroll, and cosmetic items have no bearing on safe operation.

Question 8Occupational health, safety, and environmental practices

A load's rigging arrangement shifts the center of gravity away from the hook point, causing the load to tilt when hoisted. What is the best corrective action?

  1. Increase the hoist speed to lift the load clear
  2. Re-rig the load so the hook is directly above the center of gravity Correct answer.
  3. Hoist slowly and accept the tilt
  4. Add a second signaler to watch the tilt

Explanation

A load that tilts indicates the hook point is not over its center of gravity; re-rigging to align the hook above the center of gravity restores balance and control. Accepting tilt or speeding up increases the risk of the load swinging or slipping from the rigging.

Question 9Occupational health, safety, and environmental practices

Why must a tower crane be left in weathervaning configuration when it is shut down in windy conditions?

  1. So the hook can be left at ground level for the next shift
  2. So the jib can be locked against the mast for stability
  3. So the jib can swing freely and align with the wind, reducing wind load on the structure Correct answer.
  4. So the trolley can be parked at the jib tip

Explanation

In weathervaning mode the slewing brake is released so the jib turns with the wind, presenting the least sail area and reducing torsional loads on the mast and foundation. Locking the jib in wind increases structural loads.

Question 10Occupational health, safety, and environmental practices

An operator is asked to lift a load whose weight is not marked and is estimated by the rigger. What should the operator do first?

  1. Assume the rigger's estimate is accurate
  2. Check the load against the crane's maximum capacity only
  3. Lift the load slightly to see if the crane strains
  4. Verify the load weight from a reliable source before lifting Correct answer.

Explanation

Load weight must be known and verified against the crane's load chart for the specific radius and configuration before a lift. Estimating by feel or trusting an unverified figure can overload the crane. The maximum capacity is only valid at a specific radius and does not replace a verified weight.

Question 11Occupational health, safety, and environmental practices

A crane operator observes a thunderstorm approaching with visible lightning within the site's defined radius. What is the appropriate action?

  1. Stop operations, lower and secure the load, and leave the crane per the lightning procedure Correct answer.
  2. Continue lifting until rain actually begins
  3. Move the crane closer to the building for shelter
  4. Raise the hook to the highest point to avoid strikes

Explanation

Lightning near a tower crane creates an electrocution hazard because the crane is a tall conductive structure. The site lightning procedure requires stopping work, landing and securing the load, and leaving the crane safely until the storm passes.

Question 12Occupational health, safety, and environmental practices

Which practice best protects workers from noise exposure near a tower crane's diesel generator?

  1. Placing the generator next to the site office
  2. Requiring workers to shout to be heard
  3. Rotating workers every hour with no hearing protection
  4. Enclosing or locating the generator away from work areas and requiring hearing protection where noise levels exceed the site limit Correct answer.

Explanation

Noise controls follow the hierarchy: eliminate or reduce noise at the source through enclosure or siting, then protect workers with hearing protection where exposure remains above the limit. Shouting and rotation without protection do not reduce exposure.

Question 13Occupational health, safety, and environmental practices

What is the purpose of a crane's anti-collision system on a site with multiple cranes?

  1. To record the crane's fuel consumption
  2. To automatically increase hoist speed near another crane
  3. To replace the need for signalers
  4. To warn operators and slow or stop movements before cranes or structures collide Correct answer.

Explanation

Anti-collision systems use sensors and zones to warn operators and, where configured, slow or stop crane movements before contact with another crane or structure. They supplement but never replace trained operators and signalers.

Question 14Occupational health, safety, and environmental practices

A worker is found unconscious at the base of a tower crane after a fall. What is the first priority for the responder?

  1. Ensure the scene is safe and call for emergency assistance Correct answer.
  2. Move the worker immediately to the site first-aid room
  3. Ask the worker to stand up and walk
  4. Give the worker water to drink

Explanation

Rescuers must first protect themselves and the casualty by making the scene safe and summoning emergency help; moving a suspected spinal injury or giving food and drink can worsen the injury. The site's emergency response plan should then guide care until professionals arrive.

Question 15Occupational health, safety, and environmental practices

Which of the following describes the correct use of a tag line during a tower crane lift?

  1. A tag line is wrapped around the operator's harness for stability
  2. A tag line is used to lift the load in place of the hoist rope
  3. A tag line is attached to the hook to increase capacity
  4. A tag line is used to control load rotation from a position outside the drop zone Correct answer.

Explanation

A tag line lets a rigger guide and steady a load's rotation while standing clear of the drop zone, keeping hands away from the load and rigging. It is never a load-bearing element and must not be attached to people or used to lift.

Question 16Occupational health, safety, and environmental practices

What should an operator do if the crane's load moment indicator (LMI) alarm activates during a lift?

  1. Increase the hoist speed to finish quickly
  2. Ignore the alarm if the load looks light
  3. Override the LMI and continue the lift
  4. Stop the movement and reduce the load moment by lowering or reducing radius as instructed by the system Correct answer.

Explanation

The LMI warns that the crane is approaching or exceeding its rated capacity for the current radius and configuration. The operator must stop and reduce the load moment, typically by lowering the load or reducing radius, rather than overriding the safety device.

Question 17Occupational health, safety, and environmental practices

Why is it important to inspect the crane's foundation and anchor bolts as part of the operator's checks?

  1. Anchor bolts affect the crane's paint warranty
  2. Anchor bolts determine the crane's fuel efficiency
  3. Anchor bolts control the cab's air conditioning
  4. Loose or damaged anchors can allow the mast to shift or fail under load Correct answer.

Explanation

The foundation and anchor bolts transfer all crane loads into the ground; loosening, corrosion, or damage can lead to mast movement or catastrophic failure. Operators should report any abnormality to the site supervisor or crane engineer for inspection.

Question 18Occupational health, safety, and environmental practices

A rigger plans to use a shackle to connect two slings at an angle. Which factor most affects the shackle's safe working load?

  1. The length of the sling beyond the shackle
  2. The configuration and angle of loading, which may reduce capacity Correct answer.
  3. The number of workers handling the load
  4. The color of the shackle pin

Explanation

Shackle capacity depends on how it is loaded; side loading or angular loading can significantly reduce the safe working load compared with a straight in-line pull. Rigging must be arranged to keep loading within the rated configuration.

Question 19Occupational health, safety, and environmental practices

What is the primary hazard of leaving a suspended load unattended while the operator takes a break?

  1. The rigging will automatically loosen
  2. The crane's fuel will run out
  3. The load can drift or fall, striking workers below Correct answer.
  4. The load will become lighter over time

Explanation

A suspended load must never be left unattended because wind, creep, or equipment drift can move it and cause it to fall on workers below. The operator should land and secure the load before leaving the controls.

Question 20Occupational health, safety, and environmental practices

An operator is asked to lift a load over a public sidewalk adjacent to the site. Which control is most appropriate?

  1. Lift only when the operator believes the sidewalk is empty
  2. Ask pedestrians to watch for the load
  3. Use a full road and sidewalk closure with a protected pedestrian detour and a documented lift plan Correct answer.
  4. Rely on the crane's anti-collision system

Explanation

Lifting over public areas requires eliminating pedestrian exposure through a formal closure and detour, combined with a documented lift plan and supervision. Relying on the operator's view or asking pedestrians to be careful does not control the hazard.

Question 21Occupational health, safety, and environmental practices

A crane's wire rope shows several broken wires in one lay and signs of kinking. What is the correct decision?

  1. Lubricate the rope and monitor it weekly
  2. Cut out the broken wires and continue using the rope
  3. Remove the rope from service and replace it per the manufacturer's criteria Correct answer.
  4. Reduce the crane's capacity by 25 percent and keep lifting

Explanation

Broken wires in a lay and kinking indicate the rope has reached or passed its retirement criteria, and continued use risks failure under load. The rope must be removed and replaced according to the manufacturer's and applicable standards' criteria.

Question 22Occupational health, safety, and environmental practices

During a lift, the operator notices the load begin to swing unexpectedly toward a group of workers outside the exclusion zone. What is the safest immediate response?

  1. Continue the swing and trust workers to move
  2. Increase the swing speed to clear the area
  3. Release the hoist brake to let the load drop
  4. Stop the movement, lower the load if it can be done safely, and sound the horn to warn workers Correct answer.

Explanation

The operator should stop the movement to regain control, lower the load where safe, and use the horn to alert workers while the signaler directs them clear. Continuing or accelerating the swing increases the chance of a struck-by injury, and releasing the brake would drop the load.

Question 23Occupational health, safety, and environmental practices

A site plans night-time tower crane operations. Which combination best controls the associated risks?

  1. Adequate task lighting, illuminated signaler positions, and a documented night-lift plan Correct answer.
  2. Reducing the number of signalers to one
  3. Removing the exclusion zone to speed up work
  4. Relying on the crane's headlights only

Explanation

Night work requires lighting that lets the operator and signalers see the load, rigging, and landing area, along with a plan that defines communication and supervision. Headlights alone do not illuminate the load path, and reducing signalers or exclusion zones increases risk.

Question 24Occupational health, safety, and environmental practices

An operator suspects a hydraulic leak on the crane's luffing or climbing system. What is the correct environmental and safety response?

  1. Stop operation, contain the spill, report it, and have the system repaired before use Correct answer.
  2. Ignore the leak if the crane still functions
  3. Wipe the leak with a rag and continue operating
  4. Add hydraulic fluid and keep working

Explanation

Hydraulic fluid is both a slip and environmental hazard, and a leak may indicate a system fault affecting control. Operation should stop, spill control measures applied, the incident reported, and repairs completed before the crane returns to service.

Question 25Rigging and load handling

A wire rope sling is rated with a vertical capacity of 4,000 kg. Using a two-leg bridle at a 60-degree included angle between the legs, what is the approximate working load limit for the assembly?

  1. About 8,000 kg
  2. About 3,460 kg
  3. About 4,000 kg
  4. About 6,930 kg Correct answer.

Explanation

For a symmetric two-leg bridle, each leg carries half the load divided by the cosine of the half-angle from vertical. At a 60-degree included angle the half-angle is 30 degrees, so the assembly capacity equals 2 x 4,000 x cos 30 = about 6,930 kg.

Question 26Rigging and load handling

What does the term 'rated capacity' mean on a rigging component such as a shackle?

  1. The average load at which the component failed in testing
  2. The load that causes the pin to shear in a straight pull
  3. The maximum load the manufacturer allows under specified conditions Correct answer.
  4. The load at which the component begins to deform permanently

Explanation

Rated capacity is the maximum load a manufacturer permits for a component under the stated conditions of use, and it already includes an appropriate design factor. It is a working limit, not a failure or deformation threshold.

Question 27Rigging and load handling

A load is being lifted with a single vertical sling and the load shifts so the sling is no longer vertical but at 30 degrees from vertical. How does the tension in the sling change compared with the vertical case?

  1. It increases by roughly 15 percent Correct answer.
  2. It decreases because the load is shared over a longer path
  3. It increases by roughly 100 percent
  4. It stays the same because the load weight is unchanged

Explanation

Sling tension equals load weight divided by the cosine of the angle from vertical. At 30 degrees the cosine is about 0.866, so tension rises by roughly 1/0.866, about 15 percent.

Question 28Rigging and load handling

Before lifting a load with unknown mass, what is the most appropriate action for the operator?

  1. Confirm the mass from a reliable source before lifting Correct answer.
  2. Estimate the mass from the load's volume
  3. Lift slowly and watch the load cell reading
  4. Proceed if the load looks small relative to the crane

Explanation

The load must be known before the lift so the crane and rigging can be checked against their rated capacities. Estimating from appearance or volume is unreliable and can lead to overloading.

Question 29Rigging and load handling

A load is being landed on a flat deck and the rigger signals a slow lowering. Just before contact, what should the operator do?

  1. Lower slowly and stop when slack appears in the slings Correct answer.
  2. Continue at the same speed to avoid a sudden stop
  3. Increase lowering speed to seat the load firmly
  4. Release the hoist brake to let the load settle

Explanation

Landing gently and stopping as the slings go slack prevents shock loading and avoids slack rope that can snap when the load is next lifted. This is a standard landing technique.

Question 30Rigging and load handling

A chain sling has a tag showing it was last inspected and is rated, but one link shows a visible crack. What is the correct action?

  1. Use it for half the rated load
  2. Remove it from service and tag it out Correct answer.
  3. Use it only for vertical lifts
  4. Weld the crack and return it to service

Explanation

A cracked link is a reject criterion regardless of rating, so the sling must be removed from service and tagged so no one else uses it. Repairs to chain slings must be done by qualified persons, not field welding.

Question 31Rigging and load handling

What is the main purpose of a spreader beam in a lift?

  1. To increase the crane's lifting height
  2. To reduce the total weight of the load
  3. To keep sling legs near vertical and avoid crushing the load Correct answer.
  4. To allow the load to rotate freely

Explanation

A spreader beam holds the sling legs apart at the top so they stay closer to vertical, reducing leg tension and avoiding side pressure on the load. It also helps keep the load from being crushed by the slings.

Question 32Rigging and load handling

Which condition most reduces the working load limit of a wire rope sling?

  1. A sharp bend over a corner without protection Correct answer.
  2. A tag attached to the sling body
  3. A straight vertical pull
  4. A protected bend over a large radius

Explanation

Sharp bends over unprotected corners concentrate stress and can de-rate a sling significantly, so corner protection is required. Straight pulls and gentle protected bends do not reduce capacity as much.

Question 33Rigging and load handling

A four-leg sling assembly is used to lift a rigid load. What is the standard conservative assumption for capacity calculations?

  1. The load is carried by the shortest leg only
  2. Only two legs are assumed to carry the load
  3. All four legs share the load equally
  4. Only three legs are assumed to carry the load Correct answer.

Explanation

Because a rigid load may not seat evenly on all four legs, standard practice assumes only three legs share the load when calculating capacity. This accounts for uneven loading.

Question 34Rigging and load handling

What is the primary reason for using a tag line on a load?

  1. To increase the load capacity of the crane
  2. To control load rotation and sway from a safe distance Correct answer.
  3. To measure the load weight during the lift
  4. To attach the load to the hook

Explanation

A tag line lets a rigger control rotation and sway without standing under or against the load. It does not change capacity or attach the load to the hook.

Question 35Rigging and load handling

A load is being lifted and the operator notices the load beginning to swing toward a nearby structure. What is the safest immediate response?

  1. Slew quickly away from the structure
  2. Stop the hoist and wait for the load to settle Correct answer.
  3. Lower the load onto the structure
  4. Increase hoist speed to clear the structure

Explanation

Stopping the hoist and letting the load settle reduces pendulum motion and avoids contact with the structure. Rapid slewing or speed changes can amplify swing and cause impact.

Question 36Rigging and load handling

Which statement correctly describes the effect of a sling angle on the horizontal force applied to a load?

  1. Horizontal force is independent of sling angle
  2. Horizontal force decreases as the sling angle from vertical increases
  3. Horizontal force equals the load weight at all angles
  4. Horizontal force increases as the sling angle from vertical increases Correct answer.

Explanation

As sling legs move away from vertical, the horizontal component of leg tension grows and can crush or spread the load. Near-vertical legs minimize horizontal force.

Question 37Rigging and load handling

Why must the hook latch on a crane hook be closed before lifting?

  1. It prevents slings from slipping off the hook Correct answer.
  2. It locks the hook to the load
  3. It reduces the load's swing
  4. It increases the rated capacity of the hook

Explanation

A functioning latch keeps slings and fittings from slipping off the hook when tension is reduced. It has no effect on capacity or load swing.

Question 38Rigging and load handling

A load is being lifted with two slings that form a 120-degree included angle. Compared with a 60-degree included angle, the tension in each leg will be:

  1. About 3 times greater
  2. About 1.7 times greater Correct answer.
  3. About the same
  4. About half as great

Explanation

Leg tension is proportional to 1/cos(half-angle). At 60 degrees included the half-angle is 30 degrees, and at 120 degrees it is 60 degrees. The ratio is cos30/cos60, about 1.73.

Question 39Rigging and load handling

What is the correct way to determine the working load limit of a synthetic web sling with a faded tag?

  1. Assume the same rating as a wire rope sling of equal size
  2. Estimate it from the sling width and color
  3. Remove it from service until the rating is confirmed Correct answer.
  4. Use it at half the load it previously carried

Explanation

Without a legible tag the rated capacity cannot be verified, so the sling must be removed from service. Color coding and width are not reliable substitutes for the manufacturer's rating.

Question 40Rigging and load handling

A load is landed and the rigger removes the slings. What should be done with the slings afterward?

  1. Coiled around the hook
  2. Inspected and stored properly Correct answer.
  3. Discarded after every use
  4. Left on the deck for the next lift

Explanation

Slings should be inspected for damage after use and stored properly to prevent damage. Leaving them on the deck or hanging them on the hook can lead to damage or unsafe conditions.

Question 41Rigging and load handling

What is the primary hazard of lifting a load with a center of gravity that is not under the hook?

  1. The crane's capacity will increase
  2. The load will become lighter
  3. The slings will become stronger
  4. The load will tilt and may shift or spill Correct answer.

Explanation

If the center of gravity is not below the hook, the load tilts until it is, which can cause shifting, spilling, or uncontrolled rotation. The load should be rigged so the center of gravity is under the hook.

Question 42Rigging and load handling

Which of the following is a correct practice when using a shackle to connect a sling to a load?

  1. Screw the pin in fully so the shoulder seats against the shackle body Correct answer.
  2. Tighten the pin with a pipe extension
  3. Leave the pin partly threaded for quick release
  4. Replace the pin with a bolt of similar size

Explanation

The shackle pin must be fully seated so the shoulder bears against the body, which ensures the rated capacity is maintained. Substituting hardware or over-tightening with extensions can damage the shackle.

Question 43Rigging and load handling

What is the purpose of a load chart on a tower crane?

  1. To record the operator's daily hours
  2. To indicate the crane's travel speed
  3. To list the crane's maintenance schedule
  4. To show the crane's lifting capacity at various radii and configurations Correct answer.

Explanation

The load chart gives the maximum permitted load at each radius and configuration, accounting for boom or jib length and counterweight. It is the basis for planning every lift.

Question 44Rigging and load handling

A load is being lifted near the crane's maximum radius. What is the most important check before the lift?

  1. The color of the slings
  2. The wind direction only
  3. The load chart capacity at that radius Correct answer.
  4. The operator's shift length

Explanation

Capacity falls as radius increases, so the load chart must be checked at the actual radius to confirm the lift is within limits. Other factors matter but do not replace the capacity check.

Question 45Rigging and load handling

What does 'shock loading' mean in rigging and lifting?

  1. A load applied suddenly, producing forces greater than its static weight Correct answer.
  2. A load applied slowly and evenly
  3. A load that is lifted with a spreader beam
  4. A load that is balanced under the hook

Explanation

Shock loading occurs when a load or sling is suddenly accelerated or arrested, creating dynamic forces well above the static weight. It can exceed rated capacities even for a load that is otherwise within limits.

Question 46Rigging and load handling

A rigger needs to lift a long, flexible load that tends to bow. Which rigging approach best controls this?

  1. A spreader beam or multiple pick points along the length Correct answer.
  2. A tag line only
  3. Two slings placed at the ends only
  4. A single sling at the center

Explanation

Long flexible loads need support at multiple points or a spreader to prevent bowing and to keep sling legs near vertical. A single center sling or end-only slings allow excessive bending.

Question 47Rigging and load handling

Why should the operator avoid dragging a load sideways with the hoist?

  1. It reduces the crane's fuel use
  2. It creates side loading on the boom or jib and can overload it Correct answer.
  3. It improves load control
  4. It increases the load's weight

Explanation

Side loading imposes forces the crane is not designed to resist and can overload the boom or jib. Loads should be positioned so the hoist line is vertical.

Question 48Rigging and load handling

A load is being lifted with a two-leg sling and one leg is noticeably slack. What does this indicate?

  1. The crane capacity is exceeded
  2. The load is evenly balanced
  3. The sling is overloaded
  4. The center of gravity is not centered between the pick points Correct answer.

Explanation

A slack leg means the load's center of gravity is closer to the other pick point, so that leg carries more load. The rigging should be adjusted so the load is balanced.

Question 49Rigging and load handling

What is the correct action if a sling shows signs of heat damage, such as melted or glazed fibers?

  1. Cover the damaged area with tape
  2. Remove it from service Correct answer.
  3. Use it for lighter loads
  4. Shorten it to bypass the damage

Explanation

Heat damage weakens synthetic slings and cannot be repaired in the field, so the sling must be removed from service. Covering or shortening does not restore strength.

Question 50Rigging and load handling

A tower crane is lifting a bundle of rebar with two wire rope slings in a basket hitch. Which factor most directly determines the rated capacity of each sling for this configuration?

  1. The horizontal distance from the crane's slewing center to the load
  2. The number of wraps around the bundle and the D/d ratio of the bend Correct answer.
  3. The included angle between the sling legs and the load's center of gravity
  4. The color of the sling tag and the date of the last inspection

Explanation

In a basket hitch, capacity depends on how many wraps carry the load and on the efficiency loss from bending the wire rope around the load; a smaller D/d ratio reduces capacity. The included angle affects tension in the legs but does not by itself define the sling's rated capacity in a basket configuration. Inspection status and radius are separate checks and do not set the sling's rated capacity.