In a lever-operated compressor servicing tool (Class 1 lever), if the load arm length is decreased while the effort arm length is kept constant, what will be the effect on its mechanical advantage?
Mechanical advantage increases
The problem involves a lever-operated compressor servicing tool which uses a Class 1 lever. In this system, the mechanical advantage (\(MA\)) is defined by the ratio of the effort arm length to the load arm length. The key formula to understand here is:
\(MA = \frac{\text{Length of Effort Arm}}{\text{Length of Load Arm}}\)
Given that the effort arm length is kept constant while the load arm length is decreased, the following analysis can be made:
- \(MA\) is directly proportional to the inverse of the load arm length.
- If the load arm length decreases, the denominator in the formula for \(MA\) decreases.
- A smaller denominator results in a larger fraction (higher value of \(MA\)).
Therefore, when the load arm length is decreased while keeping the effort arm length constant, the mechanical advantage increases.
This is because with a shorter load arm, less effort is required to lift the same load, effectively increasing the mechanical advantage.
Hence, the correct answer is: Mechanical advantage increases.
Similar Questions
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Important Questions from Levers and Simple Machines
In Lever, mechanical advantage is the ratio of _______.
The maximum efficiency of a machine
What is the maximum mechanical advantage of a lifting machine?
(where m is a constant called coefficient of friction).
Which one of the following is CORRECT statement about Simple machines?
Efficiency of Simple machine is the ratio of:
