Which of the following hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
a) Classes 1, 4, and 5.1
b) Classes 1, 3, and 6
c) Classes 1, 3, and 4
d) Classes 1, 2.1, and 3
Answer: d) Classes 1, 2.1, and 3
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.