Demolition accessories

Question 1

Define the functioning of an ITBFE

Answer 1

• Electrical current is applied
• Fine Bridge Wire heats sufficiently to ignite match composition
• In turn initiates the burning fuse

Question 2

What are the methods of operation for the F1A1 Booby Trap Switch and their pressures?

Answer 2

• Pull (3kg)
• Pressure (11+kg)
• Pressure Release (0.9kg)
• Tension Release

Question 3

What are the components of the F1A1 Booby Trap Switch?

Answer 3

• Firing Device
• Fastening Nails and Screws
• Tensions Release Attachment
• Reel Trip Wire
• Setting Instructions

Question 4

What is used in conjunction with the F1A1 Booby Trap Switch?

Answer 4

• Coupling Base Firing F4

- Coupling Base Firing F5 inert

Question 5

What is an ITBFE used for?

Answer 5

Electrically initiating safety fuse of fuse instantaneous

Question 6

Label the ITBFE

Answer 6

label diagram

Question 7

What is an M60/M81 used for?

Answer 7

Pull type assembly used to initiate FBT and is suitable for use underwater

Question 8

What are the 3 main assemblied of the M60/M81?

Answer 8

• Firing assembly
• Fuse holder assembly
• Primer Base assembly

Question 9

Describe the function of the M60/M81

Answer 9

• Pull ring is pulled, the pull rod and firing pin and carried back
• This increases pressure of the spring
• The split cylinder slips over the release washer which forces it open
• This disengages the striker assembly from the pull rod
• Allows the compressed spring to release and drive the striker onto the primer
• Primer initiates and spit of flame ignites FBT

Question 10

Label M60/M81

Answer 10

labels diagram

Question 11

Where us the firing device DML F1A1 combination booby trap used?

Answer 11

Used with demolitions or anti-tank mines

Question 12

What are the two parts of the F1A1 combination booby trap?

Answer 12

• Mechanism (to release striker under influence of a spring)

- A coupling base which consists of a primer