12. Unit size principle deals with
a. Select light weight material
b. Provide good housekeeping
c. Select a versatile equipment
d. Increase quantity size weight of load
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Answer:
d) Increase quantity size weight of load
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Explanation:
The size principle states that motor units will be recruited in order of size from smallest to largest depending upon the intensity. When considering the various properties of the motor units this makes sense. The small units don?t produce much force, they are slow to act, and they are resistant to fatigue
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