A. fire alarm system
B. thermostat
C. riveting of steel plates
D. balance wheel of a watch
E. fitting of wheels on rims.
Correct Answer:
Option D – balance wheel of a watch
A. fire alarm system
B. thermostat
C. riveting of steel plates
D. balance wheel of a watch
E. fitting of wheels on rims.
Correct Answer:
Option D – balance wheel of a watch
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