1
Q
What are the breaching techniques?
A
Mechanical
Ballistic
Explosive
Exothermic
2
Q
What are the types of explosive effects?
A
Blast pressure
Fragmentation
Thermal effect
Chemical poisoning
3
Q
What are the phases of blast pressure?
A
Positive phase (leading edge) Negative phase
4
Q
What are the types of blast pressure?
A
Dynamic pressure
Incidental pressure
Reflective pressure
Residual pressure
5
Q
What are breaching charge types?
A
- Lock buster strip charge
- Det cord / primasheet flex linear
- Rigid folding linear
- Steel door pushing charge
- Gun port / roof charge
6
Q
How do you convert grams to grains?
A
Grains = Grams x 15.4
7
Q
How do you convert grains to pounds?
A
Pounds = Grains / 7000
8
Q
What is the MSD formula?
A
K x cube root(NEW)
K = 18 for 4 PSI K = 12 for 8 PSI
Calc and Place
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