CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
The velocity of detonation of RDX is about:
A. 1000 m/s
B. 3500 m/s
C. 8750 m/s
D. 2000 m/s
Correct Answer: C
RDX is extremely fast explosive.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Safety fuse is used to:
A. Stop explosion
B. Delay ignition
C. Cool explosive
D. Increase pressure
Correct Answer: B
Provides time delay before explosion.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
The main gas produced in explosions is:
A. Oxygen
B. Carbon dioxide and nitrogen gases
C. Hydrogen only
D. Helium
Correct Answer: B
Rapid gas formation causes pressure.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Explosion in chemistry is mainly:
A. Endothermic reaction
B. Exothermic reaction
C. Neutral reaction
D. Physical change
Correct Answer: B
Releases energy rapidly.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Explosives are stored in:
A. Open air
B. Controlled environments
C. Water
D. Sunlight
Correct Answer: B
To prevent accidental detonation.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Solid explosive example is:
A. Water
B. TNT
C. Oxygen
D. Nitrogen
Correct Answer: B
TNT is solid explosive.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Liquid explosive example is:
A. TNT
B. Nitroglycerin
C. ANFO
D. Gunpowder
Correct Answer: B
Highly unstable liquid explosive.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
The purpose of stabilizers in explosives is to:
A. Increase speed
B. Reduce sensitivity
C. Increase heat
D. Increase weight
Correct Answer: B
Makes explosives safer to handle.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Lead azide is used in:
A. Detonators
B. Fertilizers
C. Food
D. Medicine
Correct Answer: A
Used to trigger explosions.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Primary explosive example is:
A. TNT
B. Lead azide
C. RDX
D. ANFO
Correct Answer: B
Very sensitive explosive.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Explosives are classified into:
A. 1 type
B. 2 types
C. 3 types
D. 4 types
Correct Answer: C
Primary, secondary, tertiary types.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
The energy in explosives comes from:
A. Physical change
B. Chemical reaction
C. Nuclear fission
D. Light energy
Correct Answer: B
Rapid oxidation reactions release energy.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
The most widely used industrial explosive today is:
A. TNT
B. ANFO
C. Dynamite
D. RDX
Correct Answer: B
Cheap and widely used in mining.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Ammonium nitrate is used in:
A. Explosives and fertilizers
B. Plastic
C. Medicine
D. Paint
Correct Answer: A
It is a dual-use chemical.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Explosives release gases that expand due to:
A. Gravity
B. Pressure
C. High temperature
D. Magnetism
Correct Answer: C
Heat produces gas expansion.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Deflagration is:
A. Fast explosion
B. Slow burning combustion
C. Nuclear reaction
D. Freezing process
Correct Answer: B
Opposite of detonation.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Detonation means:
A. Slow burning
B. Rapid explosion with shockwave
C. Melting
D. Freezing
Correct Answer: B
Detonation produces supersonic shockwave.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
The fastest burning explosive is:
A. TNT
B. Gunpowder
C. PETN
D. Sugar
Correct Answer: C
PETN has very high detonation velocity.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Cordite is a type of:
A. Fertilizer
B. Explosive propellant
C. Plastic
D. Gas
Correct Answer: B
Used in ammunition.
CSS - PMS - CCE - PCS - General Science
Applied Chemistry - Explosives
Smokeless powder is mainly made of:
A. Sugar
B. Nitrocellulose
C. Salt
D. Water
Correct Answer: B
Used in modern firearms.