Deck 2014: Safety

1. A Rise to the correct reading and then, slowly fall to zero as the oxygen in the sample is consumed
2. B Move back and forth and finally stabilize at the correct reading after about 10 seconds
3. C Rise to the correct reading immediately and then rise slowly to a false reading as the operating temperature increases
4. D Slowly rise to the correct reading and then remain  stationary

Tip: press A-D to answer