The simple lever in which the effort and load act on the same side of the fulcrum, but load acting at a greater distance than the effort is known as:

Question

Question

This question was previously asked in

PGCIL DT Civil 13 Aug 2021 Official Paper (NR I)

Answer 1

Explanation:

Lever

A lever is a rigid rod that rotates about a fixed point called the fulcrum.
All levers are functioning on the following principle:
Load × Load arm = Effort × Effort arm
The distance of the load from the fulcrum is called the load arm and the distance of the effort from the fulcrum is called the effort arm.

Straight levers are classified as:

First order lever

Fulcrum lies between the load and the effort

Mechanical advantage may be greater than, less than, or equal to 1.

A pair of scissors, a See-saw, Crowbar, Beam balance, Hand pump, Cutting plier etc.

Second order lever

Load/Resistance lies between the fulcrum and the effort

Mechanical advantage is always greater than 1

Nutcrackers, Wheelbarrow, Paper sheet cutter, Bottle openers, Lime squeezer, etc.

Third order lever

Effort lies between the fulcrum and the load

Mechanical advantage is always less than 1

Human forearm, forceps, broom, fire tongs, fishing rod.