Forklift certification Certification Forklift certification Load Handling and Stability 2 — Questions and Answers
Question 1: What is the 'stability triangle' on a counterbalanced forklift?
- The area formed by the two front wheels and the center of the rear axle (Correct answer)
- The triangle formed by the mast, carriage, and forks
- The zone between the operator, load, and overhead guard
- The space bounded by the two forks and the load backrest
Correct answer: The area formed by the two front wheels and the center of the rear axle
The stability triangle connects the two front wheels and the pivot point of the rear axle, and the combined center of gravity must stay inside it.
Question 2: As you raise a load to full height, what happens to the truck's lateral stability?
- It decreases because the center of gravity rises (Correct answer)
- It increases because weight shifts to the front
- It stays exactly the same
- It only changes on ramps
Correct answer: It decreases because the center of gravity rises
Raising a load lifts the combined center of gravity, making the truck more likely to tip sideways.
Question 3: Why should a load be carried tilted slightly back and low to the ground?
- To keep the center of gravity low and cradle the load (Correct answer)
- To improve fuel economy
- To make the forks easier to see
- To reduce tire wear only
Correct answer: To keep the center of gravity low and cradle the load
Tilting back and carrying low keeps the center of gravity low and secures the load against the backrest.
Question 4: What happens to the forklift's maximum capacity when the load center distance increases beyond the rated value?
- The safe capacity decreases (Correct answer)
- The safe capacity increases
- Capacity is unaffected by load center
- Capacity doubles
Correct answer: The safe capacity decreases
A load center farther from the mast increases the tipping moment, so the truck can safely lift less weight.
Question 5: The standard load center used on most forklift data plates is measured at what distance?
- 24 inches (Correct answer)
- 12 inches
- 36 inches
- 48 inches
Correct answer: 24 inches
Most rated capacities assume a 24-inch load center, meaning the center of gravity is 24 inches from the face of the forks.
Question 6: When traveling with a load on an incline, which direction should the forks point?
- Upgrade (load points uphill) (Correct answer)
- Downgrade (load points downhill)
- Sideways across the slope
- It does not matter
Correct answer: Upgrade (load points uphill)
Keeping the load pointed uphill prevents it from sliding off the forks and keeps the truck stable.
Question 7: What is the primary purpose of the counterweight at the rear of the forklift?
- To offset the weight of the load and keep the truck balanced (Correct answer)
- To increase travel speed
- To protect the engine
- To improve steering response
Correct answer: To offset the weight of the load and keep the truck balanced
The counterweight balances the load on the forks so the truck does not tip forward.
Forklift certification Certification Forklift certification Load Handling and Stability 2
What is the 'stability triangle' on a counterbalanced forklift?