4BE3 U5 C2 Obj 3 EMH
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Questions and Answers

EASY What is a hoist used for?

  • Raising or lowering heavy or bulky objects (correct)
  • Lowering only bulky objects
  • Moving only horizontal loads
  • Lifting only small equipment
  • What is required for hoisting?

  • A rope, a method of connecting, and a hoisting device (correct)
  • Only a rope or cable
  • Only a chain hoist
  • A crane, a come-along, and a block and tackle
  • Who should perform hoisting operations?

  • Untrained personnel
  • Trained and experienced tradespersons (correct)
  • Only Power Engineers
  • Anyone in the plant
  • What is the minimum number of slings required for lifting a uniform load?

    <p>One</p> Signup and view all the answers

    What should be checked on a hoisting device?

    <p>The load rating</p> Signup and view all the answers

    What should be considered when determining the feasibility of a lift?

    <p>The elevation to which the load needs to be lifted</p> Signup and view all the answers

    What else should be checked before hoisting?

    <p>The strength of the beams or overhead supports</p> Signup and view all the answers

    What else should be considered during the lifting and moving operation?

    <p>Hazards such as electrical, steam, water, or air lines in the way</p> Signup and view all the answers

    What is the primary advantage of using chain hoists and come-alongs?

    <p>They have ratcheting mechanisms or clutches that prevent loads from falling</p> Signup and view all the answers

    What is the primary purpose of a block and tackle system?

    <p>To lift small loads vertically and horizontally</p> Signup and view all the answers

    What should be done with a block and tackle when not in use?

    <p>Store it properly so the pulleys and rope do not become damaged</p> Signup and view all the answers

    Why should a distorted hook be discarded and replaced?

    <p>Because it was overloaded</p> Signup and view all the answers

    What is a safety precaution to take when using a chain hoist or come-along?

    <p>Make sure the load is always less than the rated capacity of the block</p> Signup and view all the answers

    What should workers do when heavy stress is applied to ropes and slings?

    <p>Keep away from the load or the ropes and slings</p> Signup and view all the answers

    What is a common mistake to avoid when using a chain hoist?

    <p>Choking the load with the lift chain or strap</p> Signup and view all the answers

    How should two sling eyes be placed on a lift hook?

    <p>Both at the bottom of the hook</p> Signup and view all the answers

    What is a good safety practice when lifting with two or more sling eyes?

    <p>Shackle them together and place the shackle on the lift hook</p> Signup and view all the answers

    What is the purpose of a safety hook with a self-closing latch?

    <p>To prevent a load from accidentally slipping off a hook</p> Signup and view all the answers

    MEDIUM What is a major advantage of using chain hoists and come-alongs over block and tackle systems?

    <p>They have ratcheting mechanisms or clutches that prevent loads from falling</p> Signup and view all the answers

    What should be done with a block and tackle when not in use?

    <p>Store it properly to prevent damage to pulleys and rope</p> Signup and view all the answers

    What is the primary purpose of a safety hook with a self-closing latch?

    <p>To prevent a load from accidentally slipping off the hook</p> Signup and view all the answers

    What should be inspected prior to each use?

    <p>The rope</p> Signup and view all the answers

    What is a common mistake to avoid when using a chain hoist?

    <p>Choking the load with the lift chain or strap</p> Signup and view all the answers

    What should be considered when determining the feasibility of a lift?

    <p>The weight of the load and the rated capacity of the hoist</p> Signup and view all the answers

    What should be done when two sling eyes are used in lifting?

    <p>Shackle them together and place the shackle on the lift hook</p> Signup and view all the answers

    What should workers do when heavy stress is applied to ropes and slings?

    <p>Stay away from the load or the ropes and slings</p> Signup and view all the answers

    What is a common practice to prevent loads from falling when no lifting effort is applied?

    <p>Using a chain hoist or come-along with a ratcheting mechanism or clutch</p> Signup and view all the answers

    Why should a distorted hook be discarded and replaced?

    <p>Because it may fail during lifting</p> Signup and view all the answers

    What is the primary purpose of using multiple slings when lifting a non-uniform load?

    <p>To reduce the risk of the load becoming unstable during the lift</p> Signup and view all the answers

    What should be considered when determining the feasibility of a lift using a block and tackle system?

    <p>The weight of the load and the capacity of the block and tackle</p> Signup and view all the answers

    What should be checked on the beams or overhead supports before attempting a lift?

    <p>The strength of the beams and their suitability for attaching lifting devices</p> Signup and view all the answers

    What is a common hazard to consider during the lifting and moving operation?

    <p>The presence of electrical, steam, water, or air lines in the way</p> Signup and view all the answers

    What should be done before attempting to lift a load with a mass greater than the rating of the hoisting device?

    <p>Do not attempt to lift the load</p> Signup and view all the answers

    What should be determined before attempting to lift a load with a long, non-uniform shape?

    <p>The number of slings required to balance the load</p> Signup and view all the answers

    Why is it important to determine the elevation required for the lift?

    <p>To ensure the lifting device can raise or lower the load to the required elevation</p> Signup and view all the answers

    What should be checked on the hoisting device before attempting a lift?

    <p>The weight capacity of the hoisting device</p> Signup and view all the answers

    HARD What is the primary reason why a hoisting operation should be performed by a trained and experienced tradesperson?

    <p>To guarantee the safety of the operation and prevent accidents</p> Signup and view all the answers

    What is the minimum number of lifting devices required for a long, non-uniform load?

    <p>Two, to prevent bending and damage during the lift</p> Signup and view all the answers

    What should be considered when determining the feasibility of a lift using a block and tackle system?

    <p>The weight of the load and the strength of the beams or overhead supports</p> Signup and view all the answers

    What is a common hazard to consider during the lifting and moving operation?

    <p>Electrical, steam, water, or air lines in the way</p> Signup and view all the answers

    What should be done before attempting to lift a load with a mass greater than the rating of the hoisting device?

    <p>Do not attempt to lift the load</p> Signup and view all the answers

    What is the primary purpose of using multiple slings when lifting a non-uniform load?

    <p>To distribute the weight of the load evenly</p> Signup and view all the answers

    What should be inspected prior to each use of a hoisting device?

    <p>The hoisting device only</p> Signup and view all the answers

    Why is it important to determine the elevation required for the lift?

    <p>To determine the length of rope required</p> Signup and view all the answers

    What is the primary reason why chain hoists and come-alongs are preferred over block and tackle systems?

    <p>They have ratcheting mechanisms or clutches that prevent loads from falling when no lifting effort is applied</p> Signup and view all the answers

    What should be inspected prior to each use of a block and tackle?

    <p>The entire block and tackle, including the rope, pulleys, and hook</p> Signup and view all the answers

    What is the purpose of a shackle with a screw-in pin when using multiple sling eyes?

    <p>To hold the sling eyes in place and prevent them from slipping</p> Signup and view all the answers

    What is the consequence of overloading a chain hoist?

    <p>The lower hook will distort and fail</p> Signup and view all the answers

    What should be done when using a chain hoist or come-along to lift a load?

    <p>Make sure the load is less than the rated capacity of the block</p> Signup and view all the answers

    Why should a block and tackle be stored properly when not in use?

    <p>To prevent damage to the pulleys and rope</p> Signup and view all the answers

    What should be done when two sling eyes are used in lifting?

    <p>Shackle them together and place the shackle on the lift hook</p> Signup and view all the answers

    What is the primary hazard to consider when using a chain hoist or come-along?

    <p>The load falling due to overload</p> Signup and view all the answers

    What should be done when using a chain hoist to lift a load in a vertical position?

    <p>Make sure the load is less than the rated capacity of the block</p> Signup and view all the answers

    What is the purpose of a safety hook with a self-closing latch on a hoisting device?

    <p>To prevent the load from accidentally slipping off the hook</p> Signup and view all the answers

    Study Notes

    Hoisting Devices and Safety

    • A hoist is a device used for raising or lowering heavy or bulky objects, such as machines and equipment.
    • Hoisting involves using a rope, cable, sling, or chain strong enough to support the load, a method of connecting the ropes, cables, or chains to the load, and a hoisting device.
    • Hoisting is a hazardous operation that must be done by trained and experienced tradespersons.

    Pre-Hoisting Checks

    • Determine the number and locations of slings needed to balance the load.
    • Determine whether the lifting devices are strong enough to handle the load.
    • Check if the lifting device can raise or lower the load to the required elevation.
    • Check if the beams or overhead supports are strong enough for the load.
    • Identify hazards that may be encountered during the lifting and moving operation.

    Block and Tackle

    • A block and tackle is a combination of ropes and pulleys.
    • It was a common lifting device in many plants, but is less preferred today.
    • It should be stored properly to prevent damage.

    Chain Hoists and Come-Alongs

    • Chain hoists are used for vertical lifting, while come-alongs can be used in any position.
    • Chain hoists have a lower hook that is weaker than the top hook and may distort if overloaded.
    • The load should always be less than the rated capacity of the block.

    Safety Checks

    • Most jurisdictions require hoisting devices to have safety hooks with a self-closing latch.
    • Never "choke" the load with the lift chain or strap.
    • Use a sling or grab chain instead.
    • Use a shackle to hold multiple eyes together when lifting.
    • Keep away from the load or ropes when heavy stress is applied.

    Hoisting Devices and Safety

    • A hoist is a device used for raising or lowering heavy or bulky objects, such as machines and equipment.
    • Hoisting involves using a rope, cable, sling, or chain strong enough to support the load, a method of connecting the ropes, cables, or chains to the load, and a hoisting device.
    • Hoisting is a hazardous operation that must be done by trained and experienced tradespersons.

    Pre-Hoisting Checks

    • Determine the number and locations of slings needed to balance the load.
    • Determine whether the lifting devices are strong enough to handle the load.
    • Check if the lifting device can raise or lower the load to the required elevation.
    • Check if the beams or overhead supports are strong enough for the load.
    • Identify hazards that may be encountered during the lifting and moving operation.

    Block and Tackle

    • A block and tackle is a combination of ropes and pulleys.
    • It was a common lifting device in many plants, but is less preferred today.
    • It should be stored properly to prevent damage.

    Chain Hoists and Come-Alongs

    • Chain hoists are used for vertical lifting, while come-alongs can be used in any position.
    • Chain hoists have a lower hook that is weaker than the top hook and may distort if overloaded.
    • The load should always be less than the rated capacity of the block.

    Safety Checks

    • Most jurisdictions require hoisting devices to have safety hooks with a self-closing latch.
    • Never "choke" the load with the lift chain or strap.
    • Use a sling or grab chain instead.
    • Use a shackle to hold multiple eyes together when lifting.
    • Keep away from the load or ropes when heavy stress is applied.

    Hoisting Devices and Safety

    • A hoist is a device used for raising or lowering heavy or bulky objects, such as machines and equipment.
    • Hoisting involves using a rope, cable, sling, or chain strong enough to support the load, a method of connecting the ropes, cables, or chains to the load, and a hoisting device.
    • Hoisting is a hazardous operation that must be done by trained and experienced tradespersons.

    Pre-Hoisting Checks

    • Determine the number and locations of slings needed to balance the load.
    • Determine whether the lifting devices are strong enough to handle the load.
    • Check if the lifting device can raise or lower the load to the required elevation.
    • Check if the beams or overhead supports are strong enough for the load.
    • Identify hazards that may be encountered during the lifting and moving operation.

    Block and Tackle

    • A block and tackle is a combination of ropes and pulleys.
    • It was a common lifting device in many plants, but is less preferred today.
    • It should be stored properly to prevent damage.

    Chain Hoists and Come-Alongs

    • Chain hoists are used for vertical lifting, while come-alongs can be used in any position.
    • Chain hoists have a lower hook that is weaker than the top hook and may distort if overloaded.
    • The load should always be less than the rated capacity of the block.

    Safety Checks

    • Most jurisdictions require hoisting devices to have safety hooks with a self-closing latch.
    • Never "choke" the load with the lift chain or strap.
    • Use a sling or grab chain instead.
    • Use a shackle to hold multiple eyes together when lifting.
    • Keep away from the load or ropes when heavy stress is applied.

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    Description

    Learn about the devices and techniques used for raising or lowering heavy objects, including ropes, chains, and hoisting machines. Understand the importance of safety and training in hoisting operations.

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