Terminology Flashcards
PI
Symbol denotation ratio of a circle to diameter (3.1459265)
Circumference
Perimeter of a circle
Diameter
Length of a straight line through the center of an object
Radius
Half of a diameter
Breaching radius
Half the distance that the explosive force of an explosive breaches through (3 dimensional) (AFTER THE ROUNDING RULES)
One Dimensional
Lacking depth, a line example; the horizon
Two Dimensional
Area with no depth only surface. Example; the top of a table
Three Dimensional
Area plus depth. Example; a brick
Area
Surface set in 2 Dimensional. Length x Width
Volume
Amount of space occupied by 3 Dimensional objects.
Length x Width x Height
Square
Rectangle with equal four sides, no depth (2 Dimensional)
Cube
Object with 6 sides has depth (3 dimensional)
Cylinder
A circle with depth
Example; a role of quarters (3 dimensional)
Cone
A cylinder with a triangular top.
Example; ice cream cone
Square Root
A factor of a number that the root is itself times itself.
Example; square root of 9=3, 3x3=9
Cube Root
The factor of a number when the root is itself times itself times itself
Example; the cube root of 27=3, 3x3x3=27
Fraction
A numerical representation indication a quotient of two numbers.
Example; 1/2, 1/4, a portion, a fragment
Numerator
A part of a fraction above the line and signifies the number to be divided by the denominator
Example; 15/16, 15=Numerator, 16=Denominator
Denominator
Part of a fraction below the line and the fractions as divisor of the numerator
Example; 15/16, 15=Numerator, 16=Denominator
Decimal
Fragment or part of whole number expressed in numbers by percentage
Example; .12, .32
Whole Number
Entity not a fragment
Round up
Taking the first number passed the decimal point and rounding it up to the nearest whole number
Example; 3.12=4, 4.56=5
Round off
Taking the numbers two places passed the decimal and rounding up to the nearest whole number if it’s is .50 or above and rounding down to the nearest whole number if it is .49 or lower
Example; round up 4.56= 5, round down 4.49=4
Deflagrate
Change from a solid to a gaseous state relatively slow (burning)
Detonate
Instantaneously or rapid change from a solid to a gaseous state
M183 Satchel charge
Consist of 16 blocks M112 C-4 PKG. Wt. 20lbs
Charge
Consist of one or more blocks of explosive.
Example; you have 4 trees to destroy, each tree takes 4 blocks of TNT. To destroy all 4 trees, take 4 charges, each charge consisting of 4 (1 lb) blocks of TNT for a total of 16 (1lb) blocks of TNT
Block Package/Stick
Single entity of explosive
Fuse igniter
M60 used for non-electric firing system. M-81 used for MDI
MDI
Modern Demolition (Initiator)
Non-Electric firing system
Consists of an initiator (usually M-60), time fuse (usually M700), and a non-electric blasting cap (usually M-7)
Electric Firing System
Consists of power source (usually CD-450), firing wire, and an electric cap (usually M6)
Ring Main
Det Cord tied into itself in a circle in between charges from which branch lines are tied off
Branch Line
Strip of Det Cord with a priming Knot on one end. Used to prime a charge and tie into a Ring Main
Priming Knot
A knot used to take the place of a blasting cap to prime a charge.
Example; Uli, spiral, double overhand Knot, four wrap, eight wrap, wiseman Knot, Det Cord Lace, and sliding Uli
Square Knot
Used to connect Det Cord together rand tie in Firing System to Ring Main
WORK QUICKLY
Quickest method of constructing a charge and attacking a target. Most amount of explosives, conventional charge, external charge
WORK EFFICIENTLY/EFFECTIVELY
Most effective method of constructing a charge and attacking a target. Least amount of explosives, advanced charge, internal charge
