Part (a) : 3 Marks
Part (b) : 2 Marks
(a) The various precautions to be taken while reading a clinical thermometer are:

• The thermometer should be washed before and after the use, preferably with an antiseptic solution.


• Ensure that the mercury level is below 35${}^{\circ }$ C.


• Read the thermometer keeping the level of the mercury along the line of sight.


• Do not hold the thermometer bulb while reading.


• Handle the thermometer with care, if it hits a hard object it will break.