Quiz 1

Question 1

Weight, RE and dimension of M1 dynamite

Answer 1

.5lbs (stick)
.92
1.25x8”

Question 2

RE and weight of TNT

Answer 2

1lbs block

1.00

Question 3

Characteristics of C2 primasheet

Answer 3

.083 x 10"x38' 
20lbs roll 
2 rolls per box / 40lbs 
RE: 1.14 
NEW: .5 per 1 ft

Question 4

Characteristics of M186

Answer 4

.75x 3"x 50'
25lbs roll 
3 rolls per box / 80lbs 
RE: 1.14 
NEW: .5 per 1ft

Question 5

Characteristics of M112 block demolition charge

Answer 5

1”x2”x10”
1.125lbs
30 per box /40lbs
RE: 1.34

Question 6

How many grains per foot is Det cord

Answer 6

54

Question 7

What are the types of block demolition charges

Answer 7

TNT
M112
M1 DYNAMITE
40lb CRSTERING CHARGE

Question 8

Is ammonium nitrate hygroscopic?

Answer 8

Yes absorbs humidity

Question 9

What is M700

Answer 9

Time blasting fuse

Question 10

How can you tell the difference between time fuse and DET cord?

Answer 10

Time fuse- dark green plastic with yellow band
- has black powder core
DET CORD- white powder, green outer cover w/o markings

Question 11

How far can moisture penetrate DRT cord

Answer 11

6in

Question 12

What blasting cap would you use for an electrical firing system

Answer 12

M6

Question 13

What blasting cap would you use for a non-electrical firing system?

Answer 13

M7

Question 14

How many amps/ volts are needed to set of a M6 blasting cap?

Answer 14

1.5 amps/ 3 volts

Question 15

What are the different parts of the M2 crumpets

Answer 15

Top- crimping
Bottom- cutting
Handle- poking holes

Question 16

How long must you wait for a non- electrical misfire? Electrical?

Answer 16

30 min non-electrical

No wait time for electrical

Question 17

What can cause premature detonation of electrical blasting caps?

Answer 17

Radio, radar, tv signals, lightning, static electricity

Question 18

How do you find Det cord net explosive weight?

Answer 18

Length in ft54RE=total grains of explosive

Grains/7000=net explosive weight in lbs

Question 19

What is the minimum safe distances for charges less than 27lbs

Answer 19

300meters

Question 20

How do you calculate safe distance

Answer 20

Meters= 100x cubed root of NEW

Question 21

What type and how many fire extinguisher guishers should the truck be equipped with?

Answer 21

2 B/C fire extinguishers

Question 22

Where should blasting caps/ initiators be transported?

Answer 22

In another vehicle away from explosives. If not possible in cab of truck in approved ammunition container.

Question 23

How should you store explosives?

Answer 23

No less than 3in between bottom of floor

No less than 18in between top of the stack and the cover

Question 24

How are magazines placed?

Answer 24

Safety
Accessibility
Dryness
Drainage

Question 25

How much should magazines weigh?

Answer 25

No more than 500lbs per pile

Question 26

How far apart should magazines be placed?

Answer 26

No less than 140ft

Question 27

What are the different detonation effects

Answer 27

Deformation Spalling Radial cracking

Question 28

To transmit the greatest shock the charge must:

Answer 28

Charge to target contact is crucial

Question 29

What type of charge is efficient? Quicker?

Answer 29

Internal | External

Question 30

What is the 6 step problem solving format

Answer 30

1) all critical data 2) calculate for TNT (d^2)/40 3) divide by RE 4) divide by package size and round up 5) multiply by number of targets 6) total quantity of explosive

Question 31

What are the components of a non electrical initiating set?

Answer 31

Fuse igniter M700 time fuse or equivalent M7 nonelectrical bladtin cap

Question 32

Draw a nonelectrical initiating set

Answer 32

M60----M700-M7 blasting cap

Question 33

How do you calculate burn rate

Answer 33

``` 1- tie square not in non working end 2- cut 6 in off working end 3 cut 3' of working end 4- conduct test burn 5- determine sesired burn time 6- take desired burn time in seconds/ burn time of 3' test ```

Question 34

What are the components of an electrical initiating set

Answer 34

Power source Firing wire M6 electrical blasting cap

Question 35

Characteristics of Det cord

Answer 35

12.8lbs per 1000ft | Re: 1.66