BC Shi boss Exam Ques ons and answers With
complete solu on RATED A+ 2025/2026 100% VERIFIED
CORRECT
Does the mixing of ammonium nitrate and fuel oil to form an explosive require any legal
approval? - Correct Answers Yes, only if the user has received wri en approval of the Chief
Inspector of Explosives
"What three methods may be used to destroy AN/FO explosives?" - Correct Answers "-By
emptying the containers into a large body of stagnant water
-By emptying them into a pit and pouring water of them
-By sca ering them on the ground and then covering them with dirt.
""How is primacord destroyed?""" - Correct Answers 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?" - Correct Answers It is detona.ng cord consis.ng of high explosive core
contained in a waterproof tex.le covering.
"What is the proper method of a aching a blas.ng cap to a line of primacord?" - Correct
Answers The cap is a ached to the side of the primacord by means of fric.on tape or other
suitable material.
"What is a "Nonel" assembly?" - Correct Answers A plas.c 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 sensi.ve?" -
Correct Answers 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?" - Correct Answers Hook up Nonel to a b-line trunk
line pulling excess tubing through the plas.c connector, then a ach a cap to b-line trunk line
and blast.
"Would you trim off excess Nonel tubing?" - Correct Answers 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 malfunc.on.
"Can Nonels be used in areas of possible stray current?" - Correct Answers Yes, Nonels are not
a conductor of electricity.
"What is the recommended exposure .me for a Nonel detonator assembly in n explosive that
uses fuel oil as a component?" - Correct Answers 6 days (15 days for Nonel XT)
"How should a blas.ng cap be a ached to a detonator cord such as primacord?" - Correct
Answers It should be taped into posi.on and the end of the cap must be posi.oned with the
base of the cap poin.ng in the direc.on of ini.a.on.
"How should a blas.ng cap be a ached to a procore primer or other high strength cast
primer?" - Correct Answers The end of the cap should be posi.oned within the primer, pointed
in the direc.on of the main charge.
"What is the detona.on velocity of detona.ng cord?" - Correct Answers ~22,000f/s or
6,075m/s
,"Can detona.ng cord be lit with a match?" - Correct Answers Detona.ng cord cannot be lit
with a match.
"What is the chemical composi.on of the explosive used in detona.ng cord?" - Correct
Answers Pentaerythritol tetranitrate.
"How is the explosive strength of detona.ng cord usually expressed?" - Correct Answers In
grams of PETN per meter of foot of cord.
"What is a detona.ng connector relay?" - Correct Answers A detona.ng connector relay is a
nonelectric device which provides a short interval delay in a detona.on cord circuit. It is also
known as a delay connector, MS connector, or a relay.
"How is a pigtail detona.ng connector a ached to detona.ng cord?" - Correct Answers By a
square knot or by taping together, with 4 overlap."
"What is the purpose of Nonel MS connectors?" - Correct Answers Nonel MS connectors are
used with detona.ng cord to provide millisecond delay intervals along a line of propaga.on.
"How should detona.ng cord be cut?" - Correct Answers With a crimper, knife, or cord cuter
on a slight angle and with a pulling mo.on.
"Why should newly cut ends of detona.ng cord be sealed?" - Correct Answers Newly cut ends
should be sealed with tape or plas.c 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 connec.on secured by a string .e) as found on a reel of
detona.ng cord be used in a blas.ng circuit?" - Correct Answers No, the string should be
removed and a connec.on made using a standard knot.
, "Are a plas.c connector and a plas.c detona.ng connector the same thing?" - Correct Answers
No, a plas.c connector is used to connect downlines to trunks. It does not contain explosives
and should not be confused with a plas.c detona.ng connector.
"What length of overlap is recommended when taping 2 lengths of detona.ng cord together
with electricians tape?" - Correct Answers 4 inches (10cm).
"What type of detonator is recommended to be used to ini.ate detona.ng cord?" - Correct
Answers A High Strength" detonator."
"How should the detonator be oriented when taped to detona.ng cord?" - Correct Answers
The base end of the detonator should be taped poin.ng in the direc.on of the ini.a.on or
shock wave path.
"How should detonator cord be unreeled?" - Correct Answers By using a handheld rod or
stand.
"What are 2 kinds of non-electric detona.ng delay systems?" - Correct Answers "A) Nonel
system
B) Cordline system
""There 2 types of detona.ng systems, name them and indicate the difference between the
them.""" - Correct Answers "A) The Nonel system may be used with cap sensi.ve explosives.
B) The Cordline system can only be used with insensi.ve explosives such as ANFO or slurry
blas.ng agent. Cordline is a low strength detona.ng cord having an inner core of PETN, it can
side ini.ate sensi.ve explosives. Manufactured under the name ANOLINE"".""
""What is a Nonel assembly?""" - Correct Answers A assembly is a non-electric detonator
factory crimped to a length of Nonel shock tube. It has a plas.c connector for clipping onto a
complete solu on RATED A+ 2025/2026 100% VERIFIED
CORRECT
Does the mixing of ammonium nitrate and fuel oil to form an explosive require any legal
approval? - Correct Answers Yes, only if the user has received wri en approval of the Chief
Inspector of Explosives
"What three methods may be used to destroy AN/FO explosives?" - Correct Answers "-By
emptying the containers into a large body of stagnant water
-By emptying them into a pit and pouring water of them
-By sca ering them on the ground and then covering them with dirt.
""How is primacord destroyed?""" - Correct Answers 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?" - Correct Answers It is detona.ng cord consis.ng of high explosive core
contained in a waterproof tex.le covering.
"What is the proper method of a aching a blas.ng cap to a line of primacord?" - Correct
Answers The cap is a ached to the side of the primacord by means of fric.on tape or other
suitable material.
"What is a "Nonel" assembly?" - Correct Answers A plas.c 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 sensi.ve?" -
Correct Answers 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?" - Correct Answers Hook up Nonel to a b-line trunk
line pulling excess tubing through the plas.c connector, then a ach a cap to b-line trunk line
and blast.
"Would you trim off excess Nonel tubing?" - Correct Answers 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 malfunc.on.
"Can Nonels be used in areas of possible stray current?" - Correct Answers Yes, Nonels are not
a conductor of electricity.
"What is the recommended exposure .me for a Nonel detonator assembly in n explosive that
uses fuel oil as a component?" - Correct Answers 6 days (15 days for Nonel XT)
"How should a blas.ng cap be a ached to a detonator cord such as primacord?" - Correct
Answers It should be taped into posi.on and the end of the cap must be posi.oned with the
base of the cap poin.ng in the direc.on of ini.a.on.
"How should a blas.ng cap be a ached to a procore primer or other high strength cast
primer?" - Correct Answers The end of the cap should be posi.oned within the primer, pointed
in the direc.on of the main charge.
"What is the detona.on velocity of detona.ng cord?" - Correct Answers ~22,000f/s or
6,075m/s
,"Can detona.ng cord be lit with a match?" - Correct Answers Detona.ng cord cannot be lit
with a match.
"What is the chemical composi.on of the explosive used in detona.ng cord?" - Correct
Answers Pentaerythritol tetranitrate.
"How is the explosive strength of detona.ng cord usually expressed?" - Correct Answers In
grams of PETN per meter of foot of cord.
"What is a detona.ng connector relay?" - Correct Answers A detona.ng connector relay is a
nonelectric device which provides a short interval delay in a detona.on cord circuit. It is also
known as a delay connector, MS connector, or a relay.
"How is a pigtail detona.ng connector a ached to detona.ng cord?" - Correct Answers By a
square knot or by taping together, with 4 overlap."
"What is the purpose of Nonel MS connectors?" - Correct Answers Nonel MS connectors are
used with detona.ng cord to provide millisecond delay intervals along a line of propaga.on.
"How should detona.ng cord be cut?" - Correct Answers With a crimper, knife, or cord cuter
on a slight angle and with a pulling mo.on.
"Why should newly cut ends of detona.ng cord be sealed?" - Correct Answers Newly cut ends
should be sealed with tape or plas.c 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 connec.on secured by a string .e) as found on a reel of
detona.ng cord be used in a blas.ng circuit?" - Correct Answers No, the string should be
removed and a connec.on made using a standard knot.
, "Are a plas.c connector and a plas.c detona.ng connector the same thing?" - Correct Answers
No, a plas.c connector is used to connect downlines to trunks. It does not contain explosives
and should not be confused with a plas.c detona.ng connector.
"What length of overlap is recommended when taping 2 lengths of detona.ng cord together
with electricians tape?" - Correct Answers 4 inches (10cm).
"What type of detonator is recommended to be used to ini.ate detona.ng cord?" - Correct
Answers A High Strength" detonator."
"How should the detonator be oriented when taped to detona.ng cord?" - Correct Answers
The base end of the detonator should be taped poin.ng in the direc.on of the ini.a.on or
shock wave path.
"How should detonator cord be unreeled?" - Correct Answers By using a handheld rod or
stand.
"What are 2 kinds of non-electric detona.ng delay systems?" - Correct Answers "A) Nonel
system
B) Cordline system
""There 2 types of detona.ng systems, name them and indicate the difference between the
them.""" - Correct Answers "A) The Nonel system may be used with cap sensi.ve explosives.
B) The Cordline system can only be used with insensi.ve explosives such as ANFO or slurry
blas.ng agent. Cordline is a low strength detona.ng cord having an inner core of PETN, it can
side ini.ate sensi.ve explosives. Manufactured under the name ANOLINE"".""
""What is a Nonel assembly?""" - Correct Answers A assembly is a non-electric detonator
factory crimped to a length of Nonel shock tube. It has a plas.c connector for clipping onto a
