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Kansas Rigger Qualification
Examination Advanced 100-Question
Practice Exam 2026 | Questions &
Answers with Detailed Rationales |
Complete Exam Prep & Study Guide
1. A rigger is preparing a four-leg bridle sling to lift a load whose center of
gravity is significantly offset from the geometric center. What is the most
important consideration before making the lift?
A. Assume all four legs will share the load equally
B. Increase the crane's rated capacity
C. Determine the actual center of gravity and how the load will distribute among
the sling legs
D. Shorten all sling legs equally
Correct answer: C. Determine the actual center of gravity and how the load will
distribute among the sling legs
Rationale: An offset center of gravity can cause highly unequal loading of sling
legs. A rigger must evaluate the load's center of gravity, attachment
configuration, sling angles, and potential for tipping before lifting.
, 2. A synthetic round sling has a visible cut extending into its load-bearing
fibers. What should the rigger do?
A. Use it only at half capacity
B. Tie a knot above the damaged area
C. Remove it from service
D. Wrap the damaged section with tape
Correct answer: C. Remove it from service
Rationale: A cut or other damage affecting load-bearing fibers can substantially
reduce sling strength. Improvised repairs or derating by judgment are not
acceptable substitutes for proper inspection and disposition.
3. Why does decreasing the sling angle from horizontal generally increase
tension in the sling legs?
A. The load becomes heavier
B. More horizontal force must be developed to support the same vertical load
C. The crane automatically increases hoisting force
D. The sling's rated capacity increases
Correct answer: B. More horizontal force must be developed to support the
same vertical load
Rationale: As a sling becomes flatter, the tension in each leg increases
substantially. This is one of the most important principles in multi-leg rigging.
4. A 10,000-lb load is supported equally by two sling legs at 60° from
horizontal. Approximately what is the tension in each leg?
A. 2,500 lb
B. 5,000 lb
C. 5,774 lb
D. 10,000 lb
Correct answer: C. 5,774 lb
,Rationale: For two equal legs, leg tension = load ÷ (2 × sin 60°). Thus, 10,000 ÷
1.732 ≈ 5,774 lb per leg.
5. A 10,000-lb load is supported by two sling legs at 30° from horizontal.
Approximately what is the tension in each leg?
A. 2,887 lb
B. 5,000 lb
C. 10,000 lb
D. 20,000 lb
Correct answer: C. 10,000 lb
Rationale: At 30° from horizontal, each leg carries 10,000 ÷ (2 × 0.5) = 10,000 lb.
The shallow sling angle dramatically increases tension.
6. Which sling arrangement generally provides the greatest lifting efficiency
for a symmetrical load when properly configured?
A. Extremely shallow basket angle
B. Vertical configuration with appropriate capacity
C. Choker configuration around a sharp edge
D. Two legs nearly horizontal
Correct answer: B. Vertical configuration with appropriate capacity
Rationale: Sling capacity depends on configuration. A properly selected vertical
arrangement avoids the increased tension associated with shallow angles, while
edge protection and attachment security must still be addressed.
7. What is the primary purpose of a shackle's marked working load limit?
A. To identify its manufacturer only
B. To indicate its maximum rated working load under specified conditions
C. To indicate the load at which the shackle will break
D. To indicate the crane's capacity
, Correct answer: B. To indicate its maximum rated working load under specified
conditions
Rationale: The working load limit is the manufacturer's rated permissible load
for the hardware under specified conditions. It should not be confused with
ultimate breaking strength.
8. A shackle pin is difficult to install because the sling is pulling at an angle.
What is the best practice?
A. Hammer the pin into position
B. Use a larger shackle without checking capacity
C. Reconfigure the rigging so the shackle is loaded properly
D. Leave the pin partially engaged
Correct answer: C. Reconfigure the rigging so the shackle is loaded properly
Rationale: Shackles should be loaded in accordance with their intended
configuration. Side loading or forcing a pin into place can create damaging
stresses and unsafe conditions.
9. What is the principal purpose of a spreader beam?
A. Increase crane engine power
B. Reduce sling angle forces and distribute the load
C. Eliminate the need for inspection
D. Increase the weight of the load
Correct answer: B. Reduce sling angle forces and distribute the load
Rationale: Properly designed spreader beams can maintain favorable sling
geometry, distribute forces, and help prevent inward crushing or distortion of
the load.
10.A load weighs 18,000 lb and has a 4,000-lb rigging assembly. What gross
suspended load should be considered when evaluating the crane's
capacity?
Kansas Rigger Qualification
Examination Advanced 100-Question
Practice Exam 2026 | Questions &
Answers with Detailed Rationales |
Complete Exam Prep & Study Guide
1. A rigger is preparing a four-leg bridle sling to lift a load whose center of
gravity is significantly offset from the geometric center. What is the most
important consideration before making the lift?
A. Assume all four legs will share the load equally
B. Increase the crane's rated capacity
C. Determine the actual center of gravity and how the load will distribute among
the sling legs
D. Shorten all sling legs equally
Correct answer: C. Determine the actual center of gravity and how the load will
distribute among the sling legs
Rationale: An offset center of gravity can cause highly unequal loading of sling
legs. A rigger must evaluate the load's center of gravity, attachment
configuration, sling angles, and potential for tipping before lifting.
, 2. A synthetic round sling has a visible cut extending into its load-bearing
fibers. What should the rigger do?
A. Use it only at half capacity
B. Tie a knot above the damaged area
C. Remove it from service
D. Wrap the damaged section with tape
Correct answer: C. Remove it from service
Rationale: A cut or other damage affecting load-bearing fibers can substantially
reduce sling strength. Improvised repairs or derating by judgment are not
acceptable substitutes for proper inspection and disposition.
3. Why does decreasing the sling angle from horizontal generally increase
tension in the sling legs?
A. The load becomes heavier
B. More horizontal force must be developed to support the same vertical load
C. The crane automatically increases hoisting force
D. The sling's rated capacity increases
Correct answer: B. More horizontal force must be developed to support the
same vertical load
Rationale: As a sling becomes flatter, the tension in each leg increases
substantially. This is one of the most important principles in multi-leg rigging.
4. A 10,000-lb load is supported equally by two sling legs at 60° from
horizontal. Approximately what is the tension in each leg?
A. 2,500 lb
B. 5,000 lb
C. 5,774 lb
D. 10,000 lb
Correct answer: C. 5,774 lb
,Rationale: For two equal legs, leg tension = load ÷ (2 × sin 60°). Thus, 10,000 ÷
1.732 ≈ 5,774 lb per leg.
5. A 10,000-lb load is supported by two sling legs at 30° from horizontal.
Approximately what is the tension in each leg?
A. 2,887 lb
B. 5,000 lb
C. 10,000 lb
D. 20,000 lb
Correct answer: C. 10,000 lb
Rationale: At 30° from horizontal, each leg carries 10,000 ÷ (2 × 0.5) = 10,000 lb.
The shallow sling angle dramatically increases tension.
6. Which sling arrangement generally provides the greatest lifting efficiency
for a symmetrical load when properly configured?
A. Extremely shallow basket angle
B. Vertical configuration with appropriate capacity
C. Choker configuration around a sharp edge
D. Two legs nearly horizontal
Correct answer: B. Vertical configuration with appropriate capacity
Rationale: Sling capacity depends on configuration. A properly selected vertical
arrangement avoids the increased tension associated with shallow angles, while
edge protection and attachment security must still be addressed.
7. What is the primary purpose of a shackle's marked working load limit?
A. To identify its manufacturer only
B. To indicate its maximum rated working load under specified conditions
C. To indicate the load at which the shackle will break
D. To indicate the crane's capacity
, Correct answer: B. To indicate its maximum rated working load under specified
conditions
Rationale: The working load limit is the manufacturer's rated permissible load
for the hardware under specified conditions. It should not be confused with
ultimate breaking strength.
8. A shackle pin is difficult to install because the sling is pulling at an angle.
What is the best practice?
A. Hammer the pin into position
B. Use a larger shackle without checking capacity
C. Reconfigure the rigging so the shackle is loaded properly
D. Leave the pin partially engaged
Correct answer: C. Reconfigure the rigging so the shackle is loaded properly
Rationale: Shackles should be loaded in accordance with their intended
configuration. Side loading or forcing a pin into place can create damaging
stresses and unsafe conditions.
9. What is the principal purpose of a spreader beam?
A. Increase crane engine power
B. Reduce sling angle forces and distribute the load
C. Eliminate the need for inspection
D. Increase the weight of the load
Correct answer: B. Reduce sling angle forces and distribute the load
Rationale: Properly designed spreader beams can maintain favorable sling
geometry, distribute forces, and help prevent inward crushing or distortion of
the load.
10.A load weighs 18,000 lb and has a 4,000-lb rigging assembly. What gross
suspended load should be considered when evaluating the crane's
capacity?
