Question 1

Why can't atmospheric oxygen be considered when balancing reactions involving explosives and detonations?

Accepted Answer

A)   it is rarely needed
B)   the high pressure makes it impossible
C)   the reaction occurs to fast
D)   it breaks down in the extreme heat
E)   none of the aboveF) A) and E)
G) None of the above C

Question 2

Mercury fulminate is a shock-sensitive primary explosive that was used in primers in firearms ammunition. It has an OB% of -11.2. Suppose it is combined with potassium perchlorate (OB +46.2)  in a formulation. What mixture would yield a net zero oxygen balance? Report in %mercury fulminate/% potassium perchlorate

Accepted Answer

A)   73/27
B)   48/52
C)   81/19
D)   61/39
E)   none of the aboveF) B) and E)
G) B) and C) C

Question 3

The explosive ethylenedinitramine has a formula weight of 150. g/mole and a heat of explosion of 4278 kJ/kg. What is the heat of explosion in kJ/mole?

Accepted Answer

A)   29
B)   129
C)   824
D)   642
E)   none of the aboveF) B) and E)
G) A) and B)

Question 4

Why is a pipe bomb that is made with steel typically more powerful than one made with plastic pipe?

Accepted Answer

A)   steel is more malleable than plastic
B)   often the plastic won't rupture at all
C)   greater pressure can build in the device before it fails
D)   steel doesn't get as hot as plastic
E)   none of the aboveF) A) and D)
G) D) and E)

Question 5

The ability of an explosive to cause fragmentation and shrapnel formation is called

Accepted Answer

A)   brisance
B)   pushing power
C)   relative power
D)   QV
E)   none of the aboveF) None of the above
G) A) and C)

Question 6

Given the following information:

How many moles of gas are produced by the explosion of 1 mole of hexogen?

Accepted Answer

A)   3
B)   5
C)   7
D)   9
E)   none of the aboveF) A) and D)
G) D) and E) D

Question 7

What is the difference between a detonation and an explosion?

Accepted Answer

A)   detonation differs from simple combustion in the speed of the reaction and pressure
B)   nothing; they mean the same thing
C)   An explosion can only be caused by detonation
D)   A detonation can only be caused by an explosion
E)   none of the aboveF) B) and D)
G) B) and C)

Question 8

Given the following information: 2 are produced in an explosion type reaction of 1 mole of hexogen? A)  1 B)  2 C)  3 D)  4 E)  none of the above" class="answers-bank-image d-inline" rel="preload" > Predict the reaction products using the appropriate rules. How many moles of CO2 are produced in an explosion type reaction of 1 mole of hexogen?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   none of the aboveF) A) and D)
G) C) and D)

Question 9

What is the order of explosives built into an explosive train detonator?

Accepted Answer

A)   least sensitive to most
B)   most sensitive to least
C)   least-most-least
D)   most-least-most
E)   none of the aboveF) B) and D)
G) B) and E)

Question 10

Pull-poppers are small devices that detonate with a loud pop if stepped on. This would be classified as a

Accepted Answer

A)   secondary tertiary explosive
B)   secondary low explosive
C)   primary high explosive
D)   military explosive
E)   none of the aboveF) A) and C)
G) D) and E)

Exam 12: Explosives

Why can't atmospheric oxygen be considered when balancing reactions involving explosives and detonations?

Correct Answer
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C

Correct Answer
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C

The explosive ethylenedinitramine has a formula weight of 150. g/mole and a heat of explosion of 4278 kJ/kg. What is the heat of explosion in kJ/mole?

Correct Answer
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Why is a pipe bomb that is made with steel typically more powerful than one made with plastic pipe?

Correct Answer
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The ability of an explosive to cause fragmentation and shrapnel formation is called

Correct Answer
verified

Given the following information: How many moles of gas are produced by the explosion of 1 mole of hexogen?

Correct Answer
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D

What is the difference between a detonation and an explosion?

Correct Answer
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Given the following information: Predict the reaction products using the appropriate rules. How many moles of CO₂ are produced in an explosion type reaction of 1 mole of hexogen?

Correct Answer
verified

What is the order of explosives built into an explosive train detonator?

Correct Answer
verified

Pull-poppers are small devices that detonate with a loud pop if stepped on. This would be classified as a

Correct Answer
verified

Exam 12: Explosives

Why can't atmospheric oxygen be considered when balancing reactions involving explosives and detonations?

Correct AnswerverifiedC

Correct AnswerverifiedC

The explosive ethylenedinitramine has a formula weight of 150. g/mole and a heat of explosion of 4278 kJ/kg. What is the heat of explosion in kJ/mole?

Correct AnswerverifiedShow Answer

Why is a pipe bomb that is made with steel typically more powerful than one made with plastic pipe?

Correct AnswerverifiedShow Answer

The ability of an explosive to cause fragmentation and shrapnel formation is called

Correct AnswerverifiedShow Answer

Given the following information: How many moles of gas are produced by the explosion of 1 mole of hexogen?

Correct AnswerverifiedD

What is the difference between a detonation and an explosion?

Correct AnswerverifiedShow Answer

Given the following information: Predict the reaction products using the appropriate rules. How many moles of CO2 are produced in an explosion type reaction of 1 mole of hexogen?

Correct AnswerverifiedShow Answer

What is the order of explosives built into an explosive train detonator?

Correct AnswerverifiedShow Answer

Pull-poppers are small devices that detonate with a loud pop if stepped on. This would be classified as a

Correct AnswerverifiedShow Answer

Correct Answer
verified
C

Correct Answer
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C

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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D

Correct Answer
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Given the following information: Predict the reaction products using the appropriate rules. How many moles of CO₂ are produced in an explosion type reaction of 1 mole of hexogen?

Correct Answer
verified

Correct Answer
verified

Correct Answer
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