Load Center & Capacity Limits Flashcards
7 cards from real CFA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Load Center & Capacity Limits flashcards as text
Two forklifts with identical rated capacities are available. One has pneumatic tires and one has cushion tires. How might this affect load capacity decisions on an outdoor uneven surface?
Answer: Pneumatic tire forklifts are better suited for outdoor uneven surfaces
Pneumatic tires are designed for outdoor and uneven surfaces, providing better stability, while cushion tires are rated for smooth indoor floors only.
A forklift is carrying a rated load at ground level and must travel up a 10% grade ramp. What happens to the stability triangle during this maneuver?
Answer: The center of gravity shifts, potentially reducing rear stability
Traveling uphill with a load shifts the combined center of gravity rearward and upward, which can reduce tipping resistance.
A forklift nameplate states a capacity of 5,000 lbs at a 24-inch load center with forks at ground level. At maximum lift height, capacity is 3,500 lbs. An operator wants to lift 4,200 lbs to maximum height. What should they do?
Answer: Do not lift — 4,200 lbs exceeds the rated capacity at maximum height
The operator must respect the capacity rating at the actual lift height used — 4,200 lbs exceeds the 3,500 lb limit at maximum height.
What is the purpose of load capacity reduction charts provided by attachment manufacturers?
Answer: To specify how much the attachment reduces rated lifting capacity
Attachment capacity reduction charts specify the exact reduction in rated capacity caused by the attachment's weight and load center shift.
An operator is asked to lift a load that equals exactly the forklift's rated capacity. Is this safe?
Answer: It depends on load center distance, lift height, surface conditions, and attachment use
Rated capacity is given under specific standard conditions; actual safe capacity depends on load center, height, attachments, surface, and grade.
Which of the following best describes the 'stability triangle' of a counterbalanced forklift?
Answer: The area formed by the two front wheels and the rear axle pivot point
The stability triangle connects the two front drive wheels and the center of the rear axle (steering pivot), forming the safe balance zone.
A clamp attachment weighs 800 lbs and shifts the effective load center from 24 to 30 inches. The base forklift is rated at 6,000 lbs. What is the approximate net rated capacity with the attachment?
Answer: 4,800 lbs
The attachment deduction accounts for both its weight and load center shift; manufacturers typically rate the net capacity, which in this scenario is 4,800 lbs.