Question
Applying lubricants to machines increases their efficiency.
Answer: Option A
:
A
Applying lubricants to moving parts of machines reduces friction betweenthem. This means that energy that is lost as heat due to friction is reduced. Hence, efficiency of the machine is increased.
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:
A
Applying lubricants to moving parts of machines reduces friction betweenthem. This means that energy that is lost as heat due to friction is reduced. Hence, efficiency of the machine is increased.
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Friction is a type of:
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