Which are the two types of non-hydraulic jacks?

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Multiple Choice

Which are the two types of non-hydraulic jacks?

Explanation:
Non-hydraulic jacks are mechanical devices that lift without using hydraulic fluid. The two common forms are screw jacks and ratchet-lever jacks. A screw jack uses a threaded screw and nut; turning the screw with a handle slowly raises the load and can hold it in place due to the thread’s friction. A ratchet-lever jack uses a lever and pawl on a ratchet; each pump of the lever lifts a little and the pawl locks between strokes, letting you raise the load quickly and lock it in position. These two embody the mechanical, fluid-free approach, unlike options that rely on hydraulic fluid or other mechanisms.

Non-hydraulic jacks are mechanical devices that lift without using hydraulic fluid. The two common forms are screw jacks and ratchet-lever jacks. A screw jack uses a threaded screw and nut; turning the screw with a handle slowly raises the load and can hold it in place due to the thread’s friction. A ratchet-lever jack uses a lever and pawl on a ratchet; each pump of the lever lifts a little and the pawl locks between strokes, letting you raise the load quickly and lock it in position. These two embody the mechanical, fluid-free approach, unlike options that rely on hydraulic fluid or other mechanisms.

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