Safety/Transportation

Question 1

Can you burn blasting caps?

Answer 1

No, destroy blasting caps by detonation

Question 2

What are the detonation procedures?

Answer 2

Move to MSD, Take adequate cover then detonate explosives

Question 3

Should you use blasting caps underground?

Answer 3

No. It’s against US policy

Question 4

What is the first step when conducting continuity checks?

Answer 4

Ground yourself

Question 5

How far away from energized power lines should you keep electric blasting caps?

Answer 5

Minimum of 155 meters

Question 6

When should you preform a 3ft test burn on time fuse?

Answer 6

When you get a new roll, if marked roll is not used within 24hrs

Question 7

How do you preform a 3ft test burn on time fuse?

Answer 7

Measure 3ft of Time fuse, time the length of the burn, mark with DTG and time (sec), Do not use the first or last 6 inches, tie a not in the non-working end (helps identify working end)

Question 8

What is the minimum fragmentation hazard distance for a charge that has a N.E.W. less than 27lbs?

Answer 8

300 meters

Question 9

For chargers greater than 500lbs how is the Minimum Safe Distance calculated (MSD)?

Answer 9

Meters= 100 x cube root of the N.E.W.

Feet= 300 x cube root of the N.E.W.

Question 10

What does N.E.W. Stand for?

Answer 10

Net Explosive Weight

Question 11

How long should you wait to clear a non-electric misfire?

Answer 11

30 minutes

Question 12

How long should you wait to clear an electric misfire?

Answer 12

0 minutes/Immediately

Question 13

Vehicles transporting explosives should be equipped with what type of fire extinguisher and how many?

Answer 13

B and C, 2

Question 14

Where are blasting caps stored during transportation?

Answer 14

Separate from demolitions, if not possible, carry the caps in the cab in an approved Ammunition Container

Question 15

To ensure circulation of air how far should the bottom of the stack be away from the earth flooring?

Answer 15

No less than 3 inches.

Question 16

To ensure circulation of air what is the distance between the top of the stack and the cover of the magazine?

Answer 16

Minimum of 18 inches

Question 17

What are the rules for storage of explosives in a temporary magazine?

Answer 17

No more than 500lbs per pile

No less than 140 feet apart

Question 18

What items can be burned during destruction procedures?

Answer 18

Packed or unpacked HE items:

Linear, shape and block/stick demolitions such as dynamite, DET Cord, firing devices, and time fuse.

Question 19

Where should you place initiating charges on a pile of explosives that you want to detonate during destruction procedures?

Answer 19

Top of pile to prevent throwing unexplored explosives, Every 4-5 feet.

Question 20

What does SADD stand for?

Answer 20

Safety
Accessibility
Dryness
Drainage

Question 21

How should the responsibility of transporting, loading and storing explosives be handled?

Answer 21

The responsibility should not be divided

Question 22

What is the equation for Det Cord N.E.W.?

Answer 22

Length in feet x 54 grains per foot x RE factor = Total grains of explosives

Grains / 7000 = N.E.W.

Question 23

When cutting shock tube you should never use what?

Answer 23

Crimpers

Question 24

What can cause premature detonation of an electric blasting caps?

Answer 24

Radio
Radar
TV signals
Lightning 
Static Electricity

Question 25

What should you always do before unshunting wires?

Answer 25

Ground yourself

Question 26

When working with demolitions how many people should you use to accomplish the mission?

Answer 26

The Minimum number of personnel necessary to accomplish the mission

Question 27

What are some safety considerations when using demolitions?

Answer 27

Do not use blasting caps underground. Use Det Cord or M151/M152 boosters
Suspend blasting operations during electrical storms (not a consideration, it is definitive)

Question 28

When transporting blasting caps you should not..?

Answer 28

Carry loose caps in pockets or in any uncontrolled container.