Forklift High Risk Work Licence (TLILIC0004) Exam Questions & Answers 2026 (21–30)

Question 1

What is the 'stability triangle' on a forklift?

TheoryPractice · Accepted Answer

The three-point support system formed by the two front wheels and the rear axle pivot that defines the forklift's stability zone. The stability triangle is the area between the two front drive wheels and the rear axle pivot point. As long as the combined centre of gravity remains within this triangle, the forklift is stable.

Question 2

When carrying a load, where should the combined centre of gravity remain to prevent tip-over?

TheoryPractice · Accepted Answer

Within the stability triangle. If the centre of gravity moves outside the stability triangle, the forklift will tip in that direction.

Question 3

Which action is most likely to cause a front tip-over?

TheoryPractice · Accepted Answer

Carrying a load that is too heavy or with the load centre too far forward. Overloading or an excessive load centre shifts the combined centre of gravity beyond the front wheels, causing a forward tip-over.

Question 4

Which action is most likely to cause a lateral (sideways) tip-over?

TheoryPractice · Accepted Answer

Turning too fast while carrying a raised load. Turning at speed with a raised load shifts the centre of gravity outside the stability triangle laterally, causing a sideways tip-over.

Question 5

How does raising the forks affect forklift stability?

TheoryPractice · Accepted Answer

It raises the centre of gravity, reducing stability. A higher load raises the combined centre of gravity, making the machine more susceptible to tipping.

Question 6

What effect does increasing speed have on forklift stability during cornering?

TheoryPractice · Accepted Answer

It reduces stability due to centrifugal forces pushing the load outward. Centrifugal force during cornering at speed pushes the centre of gravity outside the stability triangle, risking tip-over.

Question 7

Tilting the mast backward when carrying a load primarily:

TheoryPractice · Accepted Answer

Helps stabilise the load and prevents it from sliding off the forks. Tilting back cradles the load against the backrest and reduces the risk of it slipping forward.

Question 8

When should the mast be tilted forward while carrying a loaded forklift?

TheoryPractice · Accepted Answer

Only when depositing the load onto a rack or surface. Forward tilt during travel shifts the load centre forward, destabilising the machine. It should only be used when placing a load.

Question 9

You are driving an empty forklift. How does stability compare to a loaded forklift?

TheoryPractice · Accepted Answer

An empty forklift can still tip backward more easily because there is no load to counteract the counterweight. Without a load, the counterweight can tip the machine backward, especially on uneven surfaces.

Question 10

What is the effect of a load with an unusually high centre of gravity (e.g., a tall pallet of boxes)?

TheoryPractice · Accepted Answer

It raises the combined centre of gravity, reducing lateral stability. A tall load raises its own centre of gravity, which combined with the forklift's raises the total centre of gravity and reduces stability.

Forklift High Risk Work Licence (TLILIC0004) Exam Questions & Answers 2026 (21–30)

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