Exam (elaborations)
EBOLC DEMOLITION QUESTIONS AND ANSWERS
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EBOLC DEMOLITION QUESTIONS AND ANSWERS
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EBOLC DEMOLITION QUESTIONS AND ANSWERSNever attach M456 Det Cord, an M151, or an M152 to this component. - ANSWERS-
M81
An _________ can accommodate and ensure proper proximity for initiating up to 5
shock tubes, 5 M151/152's OR 1 strand of M456 Det Cord. - ANSWERS-M9 Holder
This component has a high-strength blasting cap, factory-crimped to a 30-ft length of
shock tube. It also has a small J-hook for easy attachment to M456 Let Cord, a yellow
flag 2 meters from the blasting cap and a red flag 1 meter from the blasting cap. -
ANSWERS-M11
An _____ has a high-strength blasting cap, factory-crimped to about 7.5 ft length of time
fuse that has a 5 minute burn time. - ANSWERS-M14
What is the procedure for an instance when the M81 fires correctly, but the charge does
not go off? - ANSWERS-1. Cut 6 in of shock tube from end of M81 and dispose.
2. Cut an additional 12 in of shock tube off.
3. Check for powder.
4. If present, replace igniter and try again. If not present, wait 30 minutes plus the time
for time delay (if used) and then check detonator of 1st component.
T/F: When transporting explosives, you must have 2 fire extinguishers located in the
back of the truck at all times. - ANSWERS-False; keep them in the back of the cab with
you.
Alternate Demo Knot - ANSWERS-Which knot is pictured here?
Uli Knot - ANSWERS-Which knot is pictured here?
Girth Hitch with an Extra Turn - ANSWERS-Which knot is pictured here?
Square Knot - ANSWERS-Which knot is pictured here?
Which knots can be used to prime C4 when using Det Cord? - ANSWERS-Uli Knot and
the Double Overhand Knot
Can you connect an M11 using the J-hook to an M151? - ANSWERS-No
Which knots can be used when tying Det Cord into a ring or line main? - ANSWERS-
Girth Hitch with an Extra Turn and the Scanman Knot
How many loops are on the bottom of the Alternate Demo Knot when priming TNT? -
ANSWERS-5
, Can you directly prime TNT with an M12? - ANSWERS-No; the M12 has a low-strength
blasting cap
What is the maximum amount of shock tubes that can be used in an M9 holder? -
ANSWERS-5
What MDI components can be buried? - ANSWERS-M151 and the M152
What is the first thing to do if an M81 fails to fire? - ANSWERS-Recock and attempt to
fire 2 times.
What is the minimum safe distance (in meters) when detonating 27 lbs of explosives? -
ANSWERS-300 meters
What is the maximum amount (in lbs) of explosives that can be stacked for burning? -
ANSWERS-2000 lbs
How tall can a 2000 lb stack of explosives be? - ANSWERS-3 Inches
What is the maximum speed for vehicles transporting explosives? - ANSWERS-35 mph
When using a Dual initiated system, Time fuse, and Command, what must be done
when a misfire is clearly identified? - ANSWERS-Wait 30 minutes, plus the time fuse.
What is the minimum safe distance (in meters) when detonating 426 lbs of explosives? -
ANSWERS-800 meters
Who can call a cease fire while on a Range? - ANSWERS-Anyone
Can you combine shock tubes and M151/M152's in the same M9 holder? - ANSWERS-
No; mixed components
Can a J-hook from an M11 or M151/M152 be connected to a line or ring main? -
ANSWERS-Yes
What time of blasting cap can go directly into M112 or any explosive? - ANSWERS-
High Strength
If possible, what type of initiation system should be used at all times? - ANSWERS-Dual
What step is taken if the M81 functions properly and the shock tube blows out of the
M81 and the system misfires? - ANSWERS-Cut off 3 ft of shock tube, check for silver
powder, and attach a new M81
How long must you wait before investigating a misfire with a single command MDI
system? - ANSWERS-30 minutes
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