Lubrication is necessary to protect wear and tear caused due to Select one:a.Frictional forceb.Magnetic forcec.Electrostatic forced.Gravitational force
Question
Lubrication is necessary to protect wear and tear caused due to Select one:a.Frictional forceb.Magnetic forcec.Electrostatic forced.Gravitational force
Solution
The correct answer is a. Frictional force.
Step 1: Understand the question. The question is asking why lubrication is necessary.
Step 2: Consider the options. The options given are different types of forces - frictional, magnetic, electrostatic, and gravitational.
Step 3: Apply knowledge. Lubrication is used to reduce friction between surfaces in mutual contact, which in turn reduces the heat generated when the surfaces move.
Step 4: Choose the correct answer. In this case, the frictional force is the one that causes wear and tear, which lubrication protects against.
So, lubrication is necessary to protect against wear and tear caused due to frictional force.
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