What does the number 316 in E316T-1 mean?

Which of the following AISI material category designations refers to plain carbon steel?     AISI 1040     AISI 41xx     AISI 5xxx

Select all true statements. ANFO explosive is often preferred because using bulk explosives is cheaper, less labor intensive during loading and they fill the entire blast hole diameter. Emulsion explosives should not be used in strong and massive rocks where a high detonation pressure and high detonation velocity is required to break the rock. During rock fragmentation by blasting, the reflection of the compression wave at the free face into tension and shear waves contributes to additional cracking between the free face and the blast hole. When metals or other reactive elements are present in the composition of an explosive, less oxygen is required for a an oxygen-balanced reaction.

# 10-0V Based on the knowledge gained from experiments in the laboratory, list: 1- Name of tools used in this experiment? 252 w exp I 2 Volt Amp 3 4 5