balance wheel of a watch
fitting of wheels on rims
fire alarm
thermostat
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Discussions (10)
The ansa is A,,,,expansion of wrist causes lose of time.....contraction gain time
The ans is B
The expansion of solids can be a disadvantage when fitting wheels on rims because:
- As temperature increases, the metal wheel expands, which can cause it to become loose on the rim.
- Conversely, as temperature decreases, the metal wheel contracts, which can cause it to become too tight on the rim, leading to damage or difficulty in removal.
A. Balance wheel of a watch: Expansion can actually be beneficial in watch mechanisms, as it can help maintain accuracy.
C. Fire alarm: Expansion isn't typically a concern in fire alarms.
D. Thermostat: Expansion is actually utilized in thermostats to trigger temperature changes!
