1
BC SHIFTBOSS newest actual 2025/2026 with
complete QUESTIONS AND ANSWERS.verifed/graded
a+(A+ SOLUTION GUIDE)
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.
, 2
"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.
"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.
, 3
"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.
"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."
, 4
"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.
"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."
BC SHIFTBOSS newest actual 2025/2026 with
complete QUESTIONS AND ANSWERS.verifed/graded
a+(A+ SOLUTION GUIDE)
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.
, 2
"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.
"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.
, 3
"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.
"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."
, 4
"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.
"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."
