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Questions and Answers
What happens when gunpowder is ignited in a confined space?
What happens when gunpowder is ignited in a confined space?
- It slowly burns without producing gas.
- It emits light without generating pressure.
- It rapidly produces gas and pressure that can break apart surrounding material. (correct)
- It transforms into liquid form.
Which of the following differentiates low explosives from high explosives?
Which of the following differentiates low explosives from high explosives?
- High explosives require a detonator to react. (correct)
- Low explosives produce a strong shock wave.
- Low explosives contain one burning substance and one oxygen provider. (correct)
- High explosives ignite with a flame.
What is a characteristic of high explosives?
What is a characteristic of high explosives?
- They produce smoke and burn slowly.
- They undergo a rapid chemical reaction upon impact or detonation. (correct)
- They do not generate a shock wave.
- They can only be used for mining operations.
In mining vocabulary, what is another term used for gunpowder?
In mining vocabulary, what is another term used for gunpowder?
What is the primary role of the oxygen provider in the mixture of a low explosive?
What is the primary role of the oxygen provider in the mixture of a low explosive?
Flashcards
Gunpowder
Gunpowder
A mixture of substances that, when heated or detonated, rapidly creates high pressure and temperature, transforming into a large volume of gas.
Low Explosive
Low Explosive
An explosive that burns and produces a flame, smoke, and gas pressure to break apart materials.
High Explosive
High Explosive
An explosive that rapidly undergoes a chemical reaction, creating a shock wave and high pressure that cracks materials.
Cap-Sensitive Explosive
Cap-Sensitive Explosive
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Capmati
Capmati
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Study Notes
Explosive Materials
- Explosives are a mixture of substances that release a large amount of energy rapidly when initiated.
- Detonation, characterized by rapid expansion of gases, is a hallmark of explosives.
- Explosives can break rock formations when detonated in boreholes.
- Note: "gunpowder" is an example of an explosive.
Low Explosives
- Low explosives consist of a mixture of two substances.
- Ignition from a fuse or another initiating agent is required.
- The combustion process creates a flame and smoke.
- Gas energy generated is the primary force of breaking a given surface in this case.
High Explosives
- High explosives are chemical compounds capable of rapid chemical reactions.
- Detonation creates a powerful shock wave that breaks the surrounding material.
- High explosives produce both shock energy and gas energy.
- Certain high explosives require detonation initiators to be detonated and are termed "cap sensitive".
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