railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Physics Heat and Transfer
Which of the following precautions is not required for the proper use of a clinical thermometer?
1
It should be washed before use with antiseptic.
2
It should be kept vertically upright not tilted.
3
Don’t hold the thermometer by the bulb while reading it.
4
Initial reading should be below 35 °C.