Red Seal Auto Body and Collision Technician Practice Exam

What is an important safety precaution when lifting vehicles for repairs?

1. Always using jack stands

2. Using only hydraulic jacks for support

3. Lifting the vehicle without assistants

4. Relying on tire pressure for stability

The correct answer is: Always using jack stands

Using jack stands is crucial when lifting vehicles for repairs because they provide a stable and secure support system that prevents the vehicle from collapsing. Hydraulic jacks are designed to lift the vehicle, but they do not have the capability to hold it in place safely. Once the vehicle is lifted, jack stands should be placed underneath the support points to ensure that if the hydraulic jack were to fail, the vehicle remains securely supported by the stands. Relying solely on hydraulic jacks is not advisable, as they can fail or slip, leading to severe injury. Lifting a vehicle without assistance poses serious risks, as having another person can provide support and help in case the vehicle begins to fall. Depending on tire pressure for stability is also unsafe, as it does not provide a solid and reliable means of support; tire pressure can fluctuate and is not designed to bear the weight of a vehicle while performing repairs. Therefore, utilizing jack stands is the most effective safety measure to ensure the safety of the technician and stability of the vehicle during repairs.