Army Electrical Explosives Safety
(Ammo-28) Practice Exam QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025 Q&A
| INSTANT DOWNLOAD PDF
1. What is the primary hazard associated with electrical energy around
explosives?
A. Fire hazard
B. Initiation of explosives
C. Static buildup
D. Power failure
Rationale: Electrical energy can unintentionally initiate explosives, making
it a critical hazard in explosive environments.
2. Which of the following is considered a low-resistance path for current
flow?
A. Dry wood
B. Metal conduit
C. Rubber gloves
D. Ceramic insulators
Rationale: Metal provides low resistance and easily conducts electricity,
increasing the risk of unintentional initiation.
,3. Static electricity can be generated by:
A. Direct sunlight
B. Magnetic fields
C. Friction between dissimilar materials
D. Humid air
Rationale: Friction between materials like rubber and fabric generates
static charges that can discharge near explosives.
4. Which method is used to prevent static electricity buildup when
handling explosives?
A. Use of dry clothing
B. Wearing synthetic materials
C. Insulating shoes
D. Grounding and bonding
Rationale: Grounding and bonding dissipate static charges safely, reducing
the chance of accidental initiation.
5. Personnel must wear what kind of clothing when handling sensitive
explosives?
A. Nylon overalls
B. Polyester shirts
C. Cotton garments
D. Wool sweaters
Rationale: Cotton is less likely to generate static electricity than synthetic
materials.
6. What is the maximum allowable resistance for a personnel grounding
strap?
A. 10 ohms
B. 1 megohm
C. 100 kilohms
D. 50 ohms
, Rationale: 1 megohm resistance allows for safe static dissipation without
risk of electric shock.
7. When is it safe to handle electrically initiated explosives near a radio
transmitter?
A. Only when the transmitter is off and safe distances are maintained
B. Any time with gloves
C. Only outdoors
D. When wearing ear protection
Rationale: Radio Frequency (RF) energy can induce currents in detonators
unless transmitters are shut off and distances are followed.
8. Which of the following is considered an electrostatic discharge (ESD)
sensitive device?
A. Batteries
B. Fuses
C. Ground rods
D. Electric detonators
Rationale: Electric detonators can be triggered by small electrostatic
discharges.
9. What kind of environment increases static electricity hazards?
A. Wet and humid
B. Cold and rainy
C. Dry and low humidity
D. Hot and foggy
Rationale: Dry conditions prevent charge dissipation, increasing static
buildup.
10. What color identifies static dissipative containers?
A. Blue
B. Pink
C. Yellow
(Ammo-28) Practice Exam QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025 Q&A
| INSTANT DOWNLOAD PDF
1. What is the primary hazard associated with electrical energy around
explosives?
A. Fire hazard
B. Initiation of explosives
C. Static buildup
D. Power failure
Rationale: Electrical energy can unintentionally initiate explosives, making
it a critical hazard in explosive environments.
2. Which of the following is considered a low-resistance path for current
flow?
A. Dry wood
B. Metal conduit
C. Rubber gloves
D. Ceramic insulators
Rationale: Metal provides low resistance and easily conducts electricity,
increasing the risk of unintentional initiation.
,3. Static electricity can be generated by:
A. Direct sunlight
B. Magnetic fields
C. Friction between dissimilar materials
D. Humid air
Rationale: Friction between materials like rubber and fabric generates
static charges that can discharge near explosives.
4. Which method is used to prevent static electricity buildup when
handling explosives?
A. Use of dry clothing
B. Wearing synthetic materials
C. Insulating shoes
D. Grounding and bonding
Rationale: Grounding and bonding dissipate static charges safely, reducing
the chance of accidental initiation.
5. Personnel must wear what kind of clothing when handling sensitive
explosives?
A. Nylon overalls
B. Polyester shirts
C. Cotton garments
D. Wool sweaters
Rationale: Cotton is less likely to generate static electricity than synthetic
materials.
6. What is the maximum allowable resistance for a personnel grounding
strap?
A. 10 ohms
B. 1 megohm
C. 100 kilohms
D. 50 ohms
, Rationale: 1 megohm resistance allows for safe static dissipation without
risk of electric shock.
7. When is it safe to handle electrically initiated explosives near a radio
transmitter?
A. Only when the transmitter is off and safe distances are maintained
B. Any time with gloves
C. Only outdoors
D. When wearing ear protection
Rationale: Radio Frequency (RF) energy can induce currents in detonators
unless transmitters are shut off and distances are followed.
8. Which of the following is considered an electrostatic discharge (ESD)
sensitive device?
A. Batteries
B. Fuses
C. Ground rods
D. Electric detonators
Rationale: Electric detonators can be triggered by small electrostatic
discharges.
9. What kind of environment increases static electricity hazards?
A. Wet and humid
B. Cold and rainy
C. Dry and low humidity
D. Hot and foggy
Rationale: Dry conditions prevent charge dissipation, increasing static
buildup.
10. What color identifies static dissipative containers?
A. Blue
B. Pink
C. Yellow
