Principles of Demolitions

Question 1

describe demolition principles

Answer 1

the amount and placement of explosives are key factors in military demo

the available formulas are based on the desired effects, charge dimension significance, and charge placement significance

Question 2

what are the demolition effects

Answer 2

deformation

spalling

radial cracking

Question 3

to transmit the greatest shock the charges must _____

Answer 3

charge to target contact is critical

Question 4

describe internal and external charge types

Answer 4

internal more effecient (uses less demo)

external is quicker (uses more demo)

Question 5

describe charge thicknesses

Answer 5

0-5 lbs 1”

5-40 lbs 2”

40-300 lbs 4”

300 and up lbs 8”

Question 6

describe explosive firing train

Answer 6

primary explosives- detonator

secondary explosives - booster

main charge-

Question 7

what is the six step process

Answer 7

1. all critical info
2. calculate for TNT (formula solve for P)
3. divide by RE of explosives used
4. divide by package size and round up
5. multiply by number of targets
6. total qty of explosive