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The EXPLOSIVE Quiz

Here's a quiz on the science behind explosives.

A multiple-choice quiz by MTizzone. Estimated time: 5 mins.

Author
MTizzone

Time
5 mins

Type
Multiple Choice

Quiz #
266,249

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
5 / 10

Plays
1299

One at a Time - Single Page - Timed Game

Question 1 of 10

1. There are two types of explosives, mixtures and compounds. A mixture is a combination of an oxidizer and a fuel. The oxidizer helps release the energy from the fuel by adding oxygen molecules to the fuel. A compound is a substance that by itself is explosive and there is no need for an oxidizer. Which one out of the following explosives is a mixture of an oxidizer and a fuel? Hint

TNT

Acetone peroxide

Ammonal

Dynamite

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Question 2 of 10

2. Flash powder is a mixture of a powerful oxidizer and a metallic fuel. It is used in cinematics and in pyrotechnics. When heated it produces a brilliant white flame and a large volume of smoke. Which one of the following is not a mixture of flash powder? Hint

Potassium chlorate and aluminium

Potassium nitrate and magnesium

Potassium nitrate and silver nitrate

Potassium perchlorate and aluminium

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Question 3 of 10

3. TNT stands for trinitrotoluene.

True

False

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Question 4 of 10

4. What does ANFO stand for? Hint

None of these

Anhydrous Nitrating Fuel Oil

Ammonium Nitrate and Fuel Oil

Anhydrous Nitrating and Formulating Oxidizer

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Question 5 of 10

5. What is brisance? Hint

The time it takes for the explosive to reach detonation

The time it takes for the explosive to reach 100 degrees celsius

The heat created by the explosive

The speed which the explosive reaches its maximum pressure

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Question 6 of 10

6. What is a sensitiser? Hint

A substance which makes an explosive slightly more stable so that it is easier to operate with

A powerful explosive

A weak explosive

A substance used to increase the instability of the explosive

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Question 7 of 10

7. There are two ways for an explosive to release its energy. The first way is detonation whereby the explosive force travels faster than 1000m/s. The second way is when an explosive releases its energy slower than 1000m/s. This is called ______? Hint

Dedetonation

Deflagration

Depravation

Delocation

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Question 8 of 10

8. In safety, we grade explosives according to their sensitivity with a number and a corresponding letter. What level of risk does a class 1.4 D explosive have? Hint

No risk at all

High

Moderate

Low

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Question 9 of 10

9. Which one of the following is a false statement of explosives? Hint

Explosives are used in the production of newspapers.

Explosives are used in the production of nitrous oxide.

Explosives are used in transportation.

Explosives are used to create blood and to simulate a gun shot in cinematics

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Question 10 of 10

10. Which explosive was used in the Oklahoma City bombing? Hint

Hydrazine

TNT

ANFO

Dynamite

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Quiz Answer Key and Fun Facts

Answer: Ammonal

Ammonal is a mixture of ammonium nitrate and aluminium powder. Ammonal is used often in military bombs such as the 'Daisy Cutter Bomb'.

Answer: Potassium nitrate and silver nitrate

Potassium nitrate and magnesium produces a white flame with a lot of smoke and byproduct, however, potassium perchlorate and potassium chlorate produce no gas, just a bright flame and a loud bang.

3. TNT stands for trinitrotoluene.

Answer: true

TNT is a very stable yellow solid. When it is heated, however, its properties change, it becomes very sensitive, toxic and explosive.

4. What does ANFO stand for?

Answer: Ammonium Nitrate and Fuel Oil

Ammonium nitrate is the most widely used oxidizer for commercial explosives in the world and ANFO is the most widely used commercial explosive in the world.

5. What is brisance?

Answer: The speed which the explosive reaches its maximum pressure

Brisance is also known as the shattering effect.

6. What is a sensitiser?

Answer: A substance used to increase the instability of the explosive

Sensitisers create a more sensitive explosive. When we say an explosive is sensitive, it means the explosive is easily detonated by either shock, friction or heat.

Answer: Deflagration

Black powder, gunpowder, squibs, flash powder and most propellants, all under go a process of deflagration. In simpler terms, detonation is supersonic (faster than the speed of sound) and deflagration is subsonic (slower than the speed of sound).

8. In safety, we grade explosives according to their sensitivity with a number and a corresponding letter. What level of risk does a class 1.4 D explosive have?

Answer: Low

Safety classes range from 1.1 A to 1.6 S 1.1 . The numbers give the information on the risks of an explosive, while the letters give you information on the type of explosive.

9. Which one of the following is a false statement of explosives?

Answer: Explosives are used in the production of newspapers.

Transportation - explosives are used to eject airbags from cars (sodium azide and black powder) and they are used in aviation to eject a pilot out of his seat in emergencies.

Nitrous oxide - the insensitive explosive ammonium nitrate (NH4NO3) is heated to release N2O and 2H2O

Blood - they are used to simulate a gunshot. Squibs are put into a balloon and detonated. This blasts the blood all over the victim without injuring the person.

10. Which explosive was used in the Oklahoma City bombing?

Answer: ANFO

In 1995 Timothy McVeigh, Terry Nichols and Michael Fortier bombed the Alfred P Murrah Federal Building. They used a variant of ANFO. Instead of mixing ammonium nitrate with diesel, they mixed it with nitromethane to form a much stronger mixture.

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Source: Author MTizzone

This quiz was reviewed by FunTrivia editor crisw before going online.
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