Truck Mounted Cranes Overview
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Questions and Answers

What is the primary function of the angle sensor mounted inside the cable reel housing?

  • To control the hydraulic fluid flow.
  • To determine the load pressure.
  • To measure the boom length and angle. (correct)
  • To monitor hydraulic hose conditions.
  • Which component is critical for ensuring the accurate operation of the Rated Capacity Indicator/Limiter?

  • Cable reeling drum. (correct)
  • Anti-two block switch.
  • Limit switches.
  • Pressure transducers.
  • How does the configuration of single stage ram systems get verified?

  • Through physical inspection of hoses.
  • By testing the limits manually.
  • With a diagnostic tool.
  • By checking the RCL display. (correct)
  • What is a significant risk when the cable is not laid flat on the drum?

    <p>False length readings.</p> Signup and view all the answers

    Which statement accurately differentiates a fly jib from a luffing jib?

    <p>A luffing jib moves during a lift while the fly jib is fixed.</p> Signup and view all the answers

    What happens to the telescopic length of the cable if the number of turns and diameter of the cable drum is altered?

    <p>The telescopic length increases proportionally.</p> Signup and view all the answers

    Which safety feature is essential to prevent two blocks occurring during crane operation?

    <p>Anti-two block switch.</p> Signup and view all the answers

    What is necessary to ensure the proper stowing of a fly jib on the crane boom?

    <p>Ensuring jib attachment pins are stowed.</p> Signup and view all the answers

    What is NOT a requirement for the thorough examination of hoist drums?

    <p>The hydraulic hoses and connections should be color-coded</p> Signup and view all the answers

    Which of the following practices is essential for ensuring the safety of mobile cranes using wire rope?

    <p>Daily operator checks and safe periodic inspections by a Competent Person</p> Signup and view all the answers

    What should be observed regarding the operation of hoist drums during examination?

    <p>They must not produce any detrimental sounds during operation</p> Signup and view all the answers

    According to safety standards, which element is critical in the examination of wire ropes?

    <p>A detailed examination by a Competent Person must be conducted</p> Signup and view all the answers

    What factor does NOT influence the safety of the mobile crane's wire rope usage?

    <p>User experience with different crane models</p> Signup and view all the answers

    What must occur if the condition of hidden parts is unknown before examinations?

    <p>The hidden parts need to be dismantled as required.</p> Signup and view all the answers

    Which attribute is NOT necessarily required for a competent person conducting thorough examinations?

    <p>Advanced degrees in engineering</p> Signup and view all the answers

    What does Continuous Professional Development primarily aim to achieve?

    <p>Keeping knowledge and skills updated.</p> Signup and view all the answers

    What factor is NOT mentioned as influencing the competency requirements for personnel examining cranes?

    <p>The size of the cranes being examined</p> Signup and view all the answers

    Which of the following statements about CPD is incorrect?

    <p>CPD requires significant additional training courses.</p> Signup and view all the answers

    Which document provides more details regarding competency for thorough examinations besides the LEEA Foundation Certificate?

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

    What is emphasized as essential for competent persons conducting examinations?

    <p>Appropriate training and information.</p> Signup and view all the answers

    What type of knowledge is crucial for competent individuals conducting crane examinations?

    <p>Knowledge related to the safe operation of cranes.</p> Signup and view all the answers

    What feature may allow a truck mounted crane to operate with 360° duties?

    <p>A fitted 5th jack at the front end</p> Signup and view all the answers

    Which characteristic defines an all-terrain crane?

    <p>Designed for various ground conditions</p> Signup and view all the answers

    What is a notable feature of city cranes that aids in maneuverability?

    <p>Shorter boom with more sections</p> Signup and view all the answers

    Which components of all-terrain cranes must be functioning correctly during inspection?

    <p>Steering and braking systems</p> Signup and view all the answers

    What is the purpose of having jacks and outriggers stowable from the upper cab in all-terrain cranes?

    <p>To allow for smoother travel around the site</p> Signup and view all the answers

    What common feature do city cranes possess to navigate urban environments effectively?

    <p>Lowered boom height</p> Signup and view all the answers

    Why might truck mounted cranes have reduced duties in the front quadrant?

    <p>Design constraints</p> Signup and view all the answers

    What role does the steering wheel and brake pedal serve in all-terrain cranes?

    <p>To enable travel around the site</p> Signup and view all the answers

    What is the primary purpose of Magnetic Rope Testing (MRT)?

    <p>To provide visibility to the wire rope's core</p> Signup and view all the answers

    Under what circumstances should a wire rope inspection be conducted outside of a periodic schedule?

    <p>Following an accident or if the equipment has been inactive for over 3 months</p> Signup and view all the answers

    Which of the following best describes the term MRT (LF)?

    <p>It indicates a local fault or flaw such as corrosion or pitting</p> Signup and view all the answers

    Which aspect of deterioration is NOT directly assessed by MRT?

    <p>Visual assessment of outer strands</p> Signup and view all the answers

    What is a consequence of not thoroughly inspecting wire ropes after an overload incident?

    <p>Potential for catastrophic failure during subsequent lifts</p> Signup and view all the answers

    What indicates that a wire rope might have suffered from a local flaw?

    <p>Presence of nicks or pinched strands</p> Signup and view all the answers

    How long must a wire rope appliance be out of action to require a thorough inspection?

    <p>3 months</p> Signup and view all the answers

    What does the combined assessment table primarily help identify?

    <p>Common deterioration types and their inspection methods</p> Signup and view all the answers

    Study Notes

    Truck Mounted Cranes

    • Can have limited or 360° operational duties depending on front jack configuration.
    • Proper jack placement increases versatility in handling loads.

    All-Terrain Cranes

    • Designed for various ground conditions; suitable for challenging terrains.
    • Steering and travel controls located in the upper cab for efficient maneuvering.
    • Dual steering and braking systems need thorough examination for safe operation.

    City Cranes

    • Feature a shorter, multi-section boom for enhanced urban maneuverability.
    • All-wheel steering with a low boom position minimizes overhead obstruction risks.
    • Hidden components require dismantling for proper inspection by competent personnel.

    Competency in Crane Examinations

    • Critical for personnel conducting thorough inspections.
    • Required knowledge, skills, and experience vary according to crane complexity and risks involved.
    • Ongoing training and independence are essential for effective assessments.

    Continuous Professional Development (CPD)

    • Promotes continuous skill enhancement and knowledge upgradation.
    • Can be integrated into daily work without extensive training sessions.
    • Important for staying current with industry standards and practices.

    Boom Furniture

    • Consists of various components, including:
      • Boom length/angle sensors
      • Cable reeling drums
      • Limit switches
      • Dynamometers
      • Pressure transducers for load measurement
    • Essential for the effective operation of the Rated Capacity Indicator/Limiter.

    Cable Reeling Drum

    • Powers the angle sensor and other boom equipment.
    • Proper cable layering is vital to avoid false readings and ensure accurate performance.
    • The drum’s design determines uncoiled cable length and operational accuracy.

    Fly Jibs vs. Luffing Jibs

    • Fly jibs remain fixed during lifts; the main boom moves.
    • Luffing jibs adjust position during lifting while the main boom stays fixed.
    • Proper stowage of jib attachment pins is crucial for operational readiness.

    Hoist Drums Examination

    • Must be securely attached and free of visible damage.
    • Hydraulic hoses and connections need to be leak-free and tight.
    • Correct layering of wire hoist rope on the drum is essential for operation.

    Wire Rope Examination

    • Safety relies heavily on thorough inspections by Competent Persons.
    • Daily checks by operators are critical for safe machine use.
    • Compliance with manufacturer instructions and local regulations is mandatory.

    Exceptional Circumstances for Wire Rope Inspection

    • Inspections are obligatory after incidents such as accidents or overloads.
    • A thorough check is necessary if cranes have been idle for over three months.

    Magnetic Rope Testing (MRT)

    • Provides insights into the internal condition of wire ropes, enhancing lifting safety.
    • Crucial for identifying potential internal flaws that could compromise safety.

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    Description

    This quiz helps you learn about truck mounted cranes, their operational duties, and limitations. It covers the unique features of different models, including those with a 5th jack for enhanced functionality. Test your knowledge of crane specifications and operational safety.

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