Question

you should never use a jack without a ________ underneath it. box stand cinder block floor pan 17 of 25

Explanation:

When using a jack for vehicle - lifting or other purposes, a stand is commonly used underneath the jack for added safety. A stand provides stable support in case the jack fails. Boxes, cinder blocks, and floor pans are not proper and safe substitutes for a stand in this context.

Answer:

B. Stand