Which of the following spring is used in mechanical wrist watch?
A. Helical compression spring
B. Spiral spring
C. Torsion spring
D. Belleville spring
Answer: Option C
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Spring Type Common Applications
Helical Spring Suspension, valves
Leaf Spring Vehicle suspension
Torsion Spring Garage doors, clothespins
Spiral Spring Mechanical watches, timers, clocks
leaf spring in automobiles is used *