Adv demo

Question 0

Accident:

Answer 0

Accidental explosion or fire resulting in damage to property

Question 1

Mishap:

Answer 1

Injury, illness, or death

Question 2

Incident:

Answer 2

Any occurence that creates a potentially hazardous situation

Question 3

SOP’s

Reviewed ________ for updates

Answer 3

Reviewed ANNUALY for updates/changes

Question 4

SOP’s

Valid for __ yrs from date of approval

Answer 4

Valid for 4 yrs from date of approval

Question 5

ATR for high risk category 1 & 2 are submitted within ____ hours

Answer 5

24 hrs

Question 6

UNDET:

Wait times for land after each shot?

Answer 6

:5 mins

Question 7

UNDET:

Wait times for UNDET after each shot?

Answer 7

:10 mins

Question 8

UNDET:

Underwater explosives may require __to__ times more explosives than on land.

Answer 8

2-6 x’s more underwater than on land

Question 9

Released energy follows the path of __________ resistance?

Answer 9

Least

Question 10

Internal charges require ____ % less explosives?

Answer 10

70%

Question 11

3 forms of released energy during underwater explosion:

Answer 11

Air shock wave

Water shock wave

Ground motion

Question 12

Prop unseating:
___ ft of DET cord for every inch of shaft.

______ line used a shock suppresor.

Answer 12

1’ for every inch

Manila line as supressor

Question 13

Safe distances:
D= ______

K= _______

W= _______

Answer 13

D= distance in feet

K= safety factor

W= net explosive weight in lbs.

Question 14

Concrete & Masonry:

For charges less than ____ lbs add 10%.

Answer 14

Charges less than 50lbs

Question 15

Concrete/Masonry Breaching:
Knocking down wall

Outer holes perpendicular, all other ____ degrees downward.

Answer 15

15 degrees downward

Question 16

Concrete/Masonry:
External charge- R3 KC

Radius is from outside of charge inward

Answer 16

.

Question 17

Concrete/Masonry:
INTERNAL charge- R3 KC

Radius is from center of blast outward. R= 1/2 the thickness of concrete

Answer 17

.

Question 18

What is the most powerful charge in a powder train?

Answer 18

Base charge

Question 19

What is “standoff”?

Answer 19

Distance between charge & object

Question 20

What is “priming”?

Answer 20

Small charge used to set off a big charge

Question 21

What 3 charges are in a blasting cap?

Answer 21

Priming
Ignition
Base charge

Question 22

What prevents an electrical charge from building up in blasting cap lead wires?

Answer 22

Shunting

Question 23

When testing burning rate of a safety fuse, how far should you be away?

Answer 23

25’ away

Question 24

When firing a series circuit, what is used?

Answer 24

Blasting Machine

Question 25

DET cord is made of what?

Answer 25

PETN or RDX

Question 26

Best type of explosive to use when cutting steel

Answer 26

Plastic explosives

Question 27

Shape charge with a cavity angle of 60 deg. and width of 4" will have what standoff? Which formula?

Answer 27

6" 1.5 x's Width

Question 28

RSO Maintains Control of the

Answer 28

Blasting Machine

Question 29

Ammunition Explosives and blasting Agents class

Answer 29

1

Question 30

Blasting Rock And Coral

Answer 30

2-6 Times more explosives than on land

Question 31

Cutting and Breaching Powder Point drive depth calc

Answer 31

Depth Desired - Existing Depth * Powder point spacing

Question 32

Prop unseating - Eplosive use approval

Answer 32

NAVSEA

Question 33

Prop wraps and length of Det cord

Answer 33

2 3/4 wraps 1' for every inch

Question 34

Barricading not present overpressure limit

Answer 34

3.5

Question 35

Concrete and Masonary under 50lbs off tnt

Answer 35

add 10%

Question 36

Cross Fracture (saddle charge)

Answer 36

Round, Square, rectangular milled steel bars

Question 37

Stress Wave method (Diamond charge)

Answer 37

High carbon Steel or steel alloy