Before using a glass thermometer, you should check that:

  1. it is as long as possible
  2. it reads exactly 0 °C in air
  3. it is warm
  4. the thread is continuous and the bulb is not cracked
Answer

D) the thread is continuous and the bulb is not cracked

A broken thread gives wrong readings. SLO P-11-N-01 · Application

Physics MCQ · More Experimental Skills and Data Analysis MCQs · Practise