Lecture II.
12. Name the explosives used in the service.
13. In what shape is gun-cotton put up for service use?
14. What are the characteristics of gun-cotton?
15. How is wet gun-cotton detonated?
16. To what use is dry gun-cotton put?
17. Is gun-cotton generally considered a safe explosive?
18. What uses are made of gun-cotton?
19. Explain how you would prepare a gun-cotton charge.
20. What is a detonator?
21. What kind of explosive is used in service detonator?
22. What kinds of fuses are used in the service?
23. At what rate do service fuses burn per second?
24. At what rate do instantaneous fuses burn per second?
25. What use is made of picric acid? T. N. T.? Nitro-Glycerine?
26. Is picric acid a safe explosive?
Ans. No.
27. And why?
Ans. No.