BC SHIFTBOSS | 419 QUESTIONS | WITH ACCURATE SOLUTIONS!!
Does the mixing of ammonium nitrate and fuel oil to form an explosive require any legal
approval? - (answer)Yes, only if the user has received written approval of the Chief
Inspector of Explosives
"What three methods may be used to destroy AN/FO explosives?" - (answer)"-By
emptying the containers into a large body of stagnant water
-By emptying them into a pit and pouring water of them
-By scattering them on the ground and then covering them with dirt.
""How is primacord destroyed?""" - (answer)The preferred method is by burning in the
same manner as dynamite. It must not be burned on the spool, but strung out in parallel
lines at least 1cm apart.
"What is primacord?" - (answer)It is detonating cord consisting of high explosive core
contained in a waterproof textile covering.
"What is the proper method of attaching a blasting cap to a line of primacord?" -
(answer)The cap is attached to the side of the primacord by means of friction tape or
other suitable material.
"What is a "Nonel" assembly?" - (answer)A plastic shock tube coated inside with finely
powdered explosive and securely crimped to a high strength (12 grain PETN) non-
electric delay detonator.
"Can a "Nonel" cap be used to detonate all types of explosives that are cap sensitive?" -
(answer)Yes, the shock tube will not disturb any column of powder as the shock tube
does not explode.
,BC SHIFTBOSS | 419 QUESTIONS | WITH ACCURATE SOLUTIONS!!
"How would you hook up "Nonel" caps?" - (answer)Hook up Nonel to a b-line trunk line
pulling excess tubing through the plastic connector, then attach a cap to b-line trunk
line and blast.
"Would you trim off excess Nonel tubing?" - (answer)No, each Nonel is a sealed unit.
One end of the tube is sealed by means of heat seals, the other end by the detonator. If
excess tubing is cut off moisture may enter and cause malfunction.
"Can Nonels be used in areas of possible stray current?" - (answer)Yes, Nonels are not a
conductor of electricity.
"What is the recommended exposure time for a Nonel detonator assembly in n
explosive that uses fuel oil as a component?" - (answer)6 days (15 days for Nonel XT)
"How should a blasting cap be attached to a detonator cord such as primacord?" -
(answer)It should be taped into position and the end of the cap must be positioned with
the base of the cap pointing in the direction of initiation.
"How should a blasting cap be attached to a procore primer or other high strength cast
primer?" - (answer)The end of the cap should be positioned within the primer, pointed
in the direction of the main charge.
"What is the detonation velocity of detonating cord?" - (answer)~22,000f/s or 6,075m/s
"Can detonating cord be lit with a match?" - (answer)Detonating cord cannot be lit with
a match.
,BC SHIFTBOSS | 419 QUESTIONS | WITH ACCURATE SOLUTIONS!!
"What is the chemical composition of the explosive used in detonating cord?" -
(answer)Pentaerythritol tetranitrate.
"How is the explosive strength of detonating cord usually expressed?" - (answer)In
grams of PETN per meter of foot of cord.
"What is a detonating connector relay?" - (answer)A detonating connector relay is a
nonelectric device which provides a short interval delay in a detonation cord circuit. It is
also known as a delay connector, MS connector, or a relay.
"How is a pigtail detonating connector attached to detonating cord?" - (answer)By a
square knot or by taping together, with 4 overlap."
"What is the purpose of Nonel MS connectors?" - (answer)Nonel MS connectors are
used with detonating cord to provide millisecond delay intervals along a line of
propagation.
"How should detonating cord be cut?" - (answer)With a crimper, knife, or cord cuter on
a slight angle and with a pulling motion.
"Why should newly cut ends of detonating cord be sealed?" - (answer)Newly cut ends
should be sealed with tape or plastic sleeves to keep the explosive core clean and dry, as
well as to prevent the PETN core from spilling out.
"May a factory splice (an overlap connection secured by a string tie) as found on a reel
of detonating cord be used in a blasting circuit?" - (answer)No, the string should be
removed and a connection made using a standard knot.
, BC SHIFTBOSS | 419 QUESTIONS | WITH ACCURATE SOLUTIONS!!
"Are a plastic connector and a plastic detonating connector the same thing?" -
(answer)No, a plastic connector is used to connect downlines to trunks. It does not
contain explosives and should not be confused with a plastic detonating connector.
"What length of overlap is recommended when taping 2 lengths of detonating cord
together with electricians tape?" - (answer)4 inches (10cm).
"What type of detonator is recommended to be used to initiate detonating cord?" -
(answer)A High Strength" detonator."
"How should the detonator be oriented when taped to detonating cord?" - (answer)The
base end of the detonator should be taped pointing in the direction of the initiation or
shock wave path.
"How should detonator cord be unreeled?" - (answer)By using a handheld rod or stand.
"What are 2 kinds of non-electric detonating delay systems?" - (answer)"A) Nonel
system
B) Cordline system
""There 2 types of detonating systems, name them and indicate the difference between
the them.""" - (answer)"A) The Nonel system may be used with cap sensitive explosives.
B) The Cordline system can only be used with insensitive explosives such as ANFO or
slurry blasting agent. Cordline is a low strength detonating cord having an inner core of
PETN, it can side initiate sensitive explosives. Manufactured under the name
ANOLINE"".""
Does the mixing of ammonium nitrate and fuel oil to form an explosive require any legal
approval? - (answer)Yes, only if the user has received written approval of the Chief
Inspector of Explosives
"What three methods may be used to destroy AN/FO explosives?" - (answer)"-By
emptying the containers into a large body of stagnant water
-By emptying them into a pit and pouring water of them
-By scattering them on the ground and then covering them with dirt.
""How is primacord destroyed?""" - (answer)The preferred method is by burning in the
same manner as dynamite. It must not be burned on the spool, but strung out in parallel
lines at least 1cm apart.
"What is primacord?" - (answer)It is detonating cord consisting of high explosive core
contained in a waterproof textile covering.
"What is the proper method of attaching a blasting cap to a line of primacord?" -
(answer)The cap is attached to the side of the primacord by means of friction tape or
other suitable material.
"What is a "Nonel" assembly?" - (answer)A plastic shock tube coated inside with finely
powdered explosive and securely crimped to a high strength (12 grain PETN) non-
electric delay detonator.
"Can a "Nonel" cap be used to detonate all types of explosives that are cap sensitive?" -
(answer)Yes, the shock tube will not disturb any column of powder as the shock tube
does not explode.
,BC SHIFTBOSS | 419 QUESTIONS | WITH ACCURATE SOLUTIONS!!
"How would you hook up "Nonel" caps?" - (answer)Hook up Nonel to a b-line trunk line
pulling excess tubing through the plastic connector, then attach a cap to b-line trunk
line and blast.
"Would you trim off excess Nonel tubing?" - (answer)No, each Nonel is a sealed unit.
One end of the tube is sealed by means of heat seals, the other end by the detonator. If
excess tubing is cut off moisture may enter and cause malfunction.
"Can Nonels be used in areas of possible stray current?" - (answer)Yes, Nonels are not a
conductor of electricity.
"What is the recommended exposure time for a Nonel detonator assembly in n
explosive that uses fuel oil as a component?" - (answer)6 days (15 days for Nonel XT)
"How should a blasting cap be attached to a detonator cord such as primacord?" -
(answer)It should be taped into position and the end of the cap must be positioned with
the base of the cap pointing in the direction of initiation.
"How should a blasting cap be attached to a procore primer or other high strength cast
primer?" - (answer)The end of the cap should be positioned within the primer, pointed
in the direction of the main charge.
"What is the detonation velocity of detonating cord?" - (answer)~22,000f/s or 6,075m/s
"Can detonating cord be lit with a match?" - (answer)Detonating cord cannot be lit with
a match.
,BC SHIFTBOSS | 419 QUESTIONS | WITH ACCURATE SOLUTIONS!!
"What is the chemical composition of the explosive used in detonating cord?" -
(answer)Pentaerythritol tetranitrate.
"How is the explosive strength of detonating cord usually expressed?" - (answer)In
grams of PETN per meter of foot of cord.
"What is a detonating connector relay?" - (answer)A detonating connector relay is a
nonelectric device which provides a short interval delay in a detonation cord circuit. It is
also known as a delay connector, MS connector, or a relay.
"How is a pigtail detonating connector attached to detonating cord?" - (answer)By a
square knot or by taping together, with 4 overlap."
"What is the purpose of Nonel MS connectors?" - (answer)Nonel MS connectors are
used with detonating cord to provide millisecond delay intervals along a line of
propagation.
"How should detonating cord be cut?" - (answer)With a crimper, knife, or cord cuter on
a slight angle and with a pulling motion.
"Why should newly cut ends of detonating cord be sealed?" - (answer)Newly cut ends
should be sealed with tape or plastic sleeves to keep the explosive core clean and dry, as
well as to prevent the PETN core from spilling out.
"May a factory splice (an overlap connection secured by a string tie) as found on a reel
of detonating cord be used in a blasting circuit?" - (answer)No, the string should be
removed and a connection made using a standard knot.
, BC SHIFTBOSS | 419 QUESTIONS | WITH ACCURATE SOLUTIONS!!
"Are a plastic connector and a plastic detonating connector the same thing?" -
(answer)No, a plastic connector is used to connect downlines to trunks. It does not
contain explosives and should not be confused with a plastic detonating connector.
"What length of overlap is recommended when taping 2 lengths of detonating cord
together with electricians tape?" - (answer)4 inches (10cm).
"What type of detonator is recommended to be used to initiate detonating cord?" -
(answer)A High Strength" detonator."
"How should the detonator be oriented when taped to detonating cord?" - (answer)The
base end of the detonator should be taped pointing in the direction of the initiation or
shock wave path.
"How should detonator cord be unreeled?" - (answer)By using a handheld rod or stand.
"What are 2 kinds of non-electric detonating delay systems?" - (answer)"A) Nonel
system
B) Cordline system
""There 2 types of detonating systems, name them and indicate the difference between
the them.""" - (answer)"A) The Nonel system may be used with cap sensitive explosives.
B) The Cordline system can only be used with insensitive explosives such as ANFO or
slurry blasting agent. Cordline is a low strength detonating cord having an inner core of
PETN, it can side initiate sensitive explosives. Manufactured under the name
ANOLINE"".""
