CALC IN PLACE TRIVIA

Question 1

What is the Burn Rate of M700 Time Fuse ?

Answer 1

35 to 45 seconds per foot.

Question 2

What should you do before unshunting wires ?

Answer 2

Ground yourself.

By placing the back side of your hand on the ground.

Question 3

What is an M9 ?

Answer 3

Bunch Block

• Can connect up to five M11 Shock Tubes
• Used to connect M11/M14 cap to ring/line main.

Question 4

How much HMX and AL Powder is in MDI/Shock Tube ?

Answer 4

89. 5 % HMX

10. 5 % AL Powder

Question 5

What is an M11 ?

Answer 5

30 foot Shock tube

• Factory crimped High-Strength Blasting cap
• J-hook to attach to DET Cord.

Question 6

How many blasting caps can an M152 set off ?

Answer 6

24 caps

Question 7

What kind of caps does an M-19 have ?

Answer 7

High Det.

Designed for urban ops (Breaching)

Question 8

What is the minimum missile hazard distance for charges less than 27 pounds ?

Answer 8

300 meters

Question 9

What could cause Premature Detonation of Electric blasting caps ?

Answer 9

Induced by Radio, TV signals, Lighting, Static electricity

Question 10

How many blasting caps can a CD 450 set off ?

Answer 10

70 blasting caps

Question 11

Where do you place an Initiating charge ?

Answer 11

On top of the pile to prevent throwing unexploded charges into the air

Question 12

What is the minimum pounds for an initiating charge for packed and unpacked explosives per number of pounds to be destroyed ?

Answer 12

Packed: 2 pounds per 100 pound
Unpacked: 1 pound per 100 pounds

Question 13

Stacked explosives in a pile should not exceed how many pounds ?

Answer 13

2,000 pounds

Question 14

What is the most preferred method for destruction of explosives ?

Answer 14

Burning is the preferred method

Question 15

What is the Acronym that determines Permanent Magazine location

Answer 15

Safety
Accessibility
Dryness 
Drainage
*Safety is the most important factor*

Question 16

Piles of Explosives Temporary stored in the open should not weigh more that how many pounds and should not be place no less than how many feet apart ?

Answer 16

500 pounds

140 feet

Question 17

How many inches of dunnage between the bottom of the stack and the earth’s floor ?

Answer 17

3 inches

Question 18

Air space of not less than how many inches between the top of the temporary stack and the cover ?

Answer 18

18 inches

Question 19

What is the distance electric blasting caps should be kept for energized power lines ?

Answer 19

155 meters

Question 20

How should blasting caps and explosives be transported ?

Answer 20

IF possible, Blasting caps / Initiators should not be transported with other explosives in the vehicle

If not possible, Pace caps in cab or trailer within a closed ammo can. Explosives stored in the cargo or bed area.

Question 21

What is an M7 ?

Answer 21

Nonelectric Blasting Cap

Question 22

What is an M6 ?

Answer 22

Electric Blasting Cap

Question 23

What are M60’s and M81’s ?

Answer 23

Fuse Igniter

Question 24

Blasting caps contain how much HE ?

Answer 24

13.5 grains

Question 25

What is the only Authorized splice used on an electric firing system ?

Answer 25

Western union " Pig Tail "

Question 26

Charges are placed to provide what ?

Answer 26

Maximum effectiveness

Question 27

What are Critical factors in charge calculations ?

Answer 27

Charge Placement Method of initiation Method of tamping

Question 28

If a non electric misfire occurs what should you do ?

Answer 28

Wait 60 minutes - Untamped: Place 1 pound charge on undetonated charge. - Tamped less than 1 foot: Place 1 pound charge over undetonated charge. - Tamped deeper than 1 foot: Dig to within 1 foot and place 2 pound charge

Question 29

What are the three Destructive effects ?

Answer 29

Deformation Radial cracking Spalling

Question 30

MDI Shock tube utilizes what to imitate blasting caps ?

Answer 30

Dust explosion Phenomenon

Question 31

what are the 2 type of electric firing systems ?

Answer 31

Common | Leap Frog

Question 32

Ammonium Nitrate is best used for ?

Answer 32

Cratering and ditching because of it's low RE factor | RE 0.42

Question 33

What increases the effectiveness of an external charge ?

Answer 33

Tamping

Question 34

External charges are _______ ? | Internal charges are _______?

Answer 34

- Tamped | - Stemmed

Question 35

The optimum ratio of charge thickness to width for steel is less than 3 inches is ?

Answer 35

1 to 3

Question 36

The optimum ratio of charge thickness to width for reinforced concrete 1 to 7 feet thick ?

Answer 36

1 to 6 to about 1 to 14

Question 37

What is an M-51 ?

Answer 37

Blasting Cap test set