Question 38General Subjects - QMED
70% to passIf the mercury has become separated in a liquid-in-glass thermometer, what can be done to correct this situation?
AAfter removing the thermometer, hold the thermometer by the lower end and try to recombine the mercury by several full arm swings.
BRepeatedly tap the side of the thermometer until the mercury recombines.
CAfter removing the thermometer, hold the thermometer by the upper end and try to recombine the mercury by several full arm swings.
DIt is not possible to correct this situation.
AI Explanation
The correct answer is A) After removing the thermometer, hold the thermometer by the lower end and try to recombine the mercury by several full arm swings. This is the correct answer because the lower end of the thermometer has the mercury column, and swinging the thermometer from the lower end allows gravity to help recombine the separated mercury. Holding the thermometer from the upper end (option C) would not effectively allow the mercury to recombine. Tapping the side of the thermometer (option B) may break the glass. Option D is incorrect because it is possible to recombine the separated mercury by swinging the thermometer from the lower end.
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