Question

Select the objects which always have a mechanical advantage less than 1.

• A. LEVER I
• B. LEVER II
• C. LEVER III
• D. Both B and C

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A

LEVER I

B

LEVER II

C

LEVER III

D

Both B and C

Options (A) and (C) illustrate tongs, option (B) illustrates a broom stick, option (D) illustrates tweezers. All of them are Class III levers and have a mechanical advantage < 1.