RRB Junior Engineer / DMS / CMA 2015 · Question 36 of 480

Scissors belong to the category of simple machines called levers. It is a first class lever because

Physics - Simple Machines

Aa. fulcrum (fixed point) is between load and effortCorrect
Bb. load is between fulcrum and effort
Cc. effort is between fulcrum and load
Dd. it does not have a fulcrum

Answer: A. a. fulcrum (fixed point) is between load and effort

Explanation

Scissors is a first class lever machine. The fulcrum is the point where the scissors blades are joined together fulcrum is between load and effort of the scissors.

Source: Arihant RRB JE Solved Paper 26-Aug-2015 (3rd Shift), Q91–150 — published solved-paper compilation (Q1–90 technical not included in this source) · memory-based

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