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  • Crane practice quizzes

Load Charts (practice quiz)

    • Outriggers 100% extended
    • Main boom length is 85 feet
    • Power pin fly retracted
    • Lifting with the 15 ton, one sheave block
    • 7 1/2 ton ball is suspended from auxiliary boom head
    • 32 foot boom extension stowed
    • Radius is 45 feet
  • Sorry
    . The correct answer is 16432 pounds.
  • Correct
  • Deductions from gross capacity are:

    15 ton block - 380 pounds
    7 ½ ton ball - 338
    32 foot extension stowed - 930
    Auxiliary boom head - 220
    Total deductions - 1,868 pounds

    The gross capacity at a 45 foot radius is 18,300 pounds.

    18,300 minus 1,868 equal a net capacity of 16,432 pounds

    • Outriggers 50% extended
    • Main boom length is 110 feet
    • Lifting with the 15 ton, one sheave block
    • 32 foot boom extension stowed
    • Weight of the rigging is 225 pounds
    • Weight of load is 10,000 pounds
  • Sorry
    . The correct answer is 62 degrees.
  • Correct
  • Gross load is:

    15-ton block - 380 pounds
    Boom extension stowed - 930
    Rigging - 225
    Load - 10,000
    Total - 11,535 pounds

    The gross capacity at a 62-degree boom angle is 11,700 pounds.

    • Outriggers 100% extended
    • Main boom length is 85 feet
    • Power pin fly retracted
    • Lifting from the 44 foot boom extension
    • Boom extension offset is 15 degrees
    • Lifting with the 10 ton ball
    • Radius is 55 feet
  • Sorry
    . The correct answer is 6,440 pounds.
  • Correct
  • Deductions from gross capacity are:

    10 ton ball - 560 pounds

    The gross capacity at a 60.4 foot radius is 7,000 pounds.

    7,000 minus 560 equal a net capacity of 6,440 pounds.

    Refer to Note 6 on page 8. When either boom length or radius or both are between values listed, the smallest load shown at either the next larger radius or boom length shall be used.

    Load chart below is from page 4 of the Figure Book.

    • Outriggers 100% extended
    • Main boom length is 110 feet
    • Power pinned fly extended
    • Lifting from the 32 foot boom extension
    • Boom extension offset is 0 degrees
    • Lifting with the 7 1/2 ton ball
    • Weight of the rigging is 150 pounds
    • Weight of the load is 7,000 pounds
  • Sorry
    . The correct answer is 69.9 feet.
  • Correct
  • Gross load is:

    7 ½ ton ball - 338 pounds
    Rigging - 150
    Load - 7,000
    Total - 7,488 pounds

    The gross capacity at a 69.9 foot radius is 7,600 pounds.

    Load chart below is from page 4 of the Figure Book.

    • Lifting on Rubber (Pick & Carry)
    • Main boom length is 65 feet
    • Lifting with the 15 ton, one sheave block
    • 7 1/2 ton ball is suspended from auxiliary boom head
    • 32 foot – 56 foot boom extension is stowed
    • Radius is 30 feet
  • Sorry
    . The correct answer is 12,349 pounds
  • Correct
  • Deductions from gross capacity are:

    15-ton block - 380 pounds
    7 ½ ton ball - 338
    Auxiliary boom head - 220
    Boom extension stowed - 1,163
    Total - 2,101 pounds

    The gross capacity at a 30-foot radius is 14,450 pounds.

    14,450 minus 2,101 equal a net capacity of 12,349 pounds.

  • Question 1: Correct
  • Question 1: Incorrect
  • Question 2: Correct
  • Question 2: Incorrect
  • Question 3: Correct
  • Question 3: Incorrect
  • Question 4: Correct
  • Question 4: Incorrect
  • Question 5: Correct
  • Question 5: Incorrect

View Load Charts Reference Material

BC Crane Safety

CONTACT

BC CRANE SAFETY
PO Box 42066, RPO Guildford
Surrey, BC  V3R 1S5

PHONE: 604-336-4699
FAX: 604-336-4510
EMAIL: info@bccranesafety.ca

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