W-07 Certificate of Fitness for Fire Extinguisher
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1. What is the primary purpose of a portable fire extinguisher?
A. To replace the fire department
B. To extinguish small fires during the early stage
C. To ventilate smoke from a building
D. To activate the fire alarm
Answer: B
Portable fire extinguishers are designed to control or extinguish incipient-stage
fires before they grow beyond the capability of one person.
2. Before servicing a fire extinguisher, the technician should first:
A. Remove the inspection tag
B. Discharge the extinguisher
C. Verify the extinguisher is safe to service and follow required safety procedures
,D. Paint the cylinder
Answer: C
Following proper safety procedures helps prevent accidental discharge, injury, or
equipment damage during maintenance.
3. Which class of fire involves ordinary combustible materials such as wood,
paper, and cloth?
A. Class B
B. Class C
C. Class D
D. Class A
Answer: D
Class A fires involve common combustible materials including wood, paper, cloth,
rubber, and many plastics.
4. Which class of fire involves flammable liquids?
A. Class A
B. Class B
C. Class C
D. Class K
Answer: B
Class B fires involve flammable and combustible liquids such as gasoline, oil,
solvents, and grease.
5. A Class C fire involves:
A. Cooking oils
B. Ordinary combustibles
,C. Energized electrical equipment
D. Combustible metals
Answer: C
Class C fires involve energized electrical equipment. Once power is removed, the
fire is treated according to the remaining fuel.
6. Which fire extinguisher is commonly used on Class A, B, and C fires?
A. Water extinguisher
B. Carbon dioxide extinguisher
C. Multipurpose dry chemical extinguisher
D. Class D extinguisher
Answer: C
Multipurpose ABC dry chemical extinguishers are designed for use on Class A,
Class B, and Class C fires.
7. The pressure gauge on a stored-pressure extinguisher should normally
indicate:
A. Empty
B. Recharge
C. Overcharged
D. The operable or green range
Answer: D
A pressure gauge in the green operating range indicates the extinguisher has the
proper internal pressure for use.
8. During a routine inspection, a damaged safety seal should be:
A. Ignored
, B. Covered with tape
C. Replaced after verifying the extinguisher has not been used or tampered with
D. Painted
Answer: C
A broken tamper seal may indicate use or tampering and must be addressed
before returning the extinguisher to service.
9. Which organization publishes the standard for portable fire extinguishers
commonly referenced during maintenance?
A. OSHA
B. EPA
C. NFPA
D. FEMA
Answer: C
The NFPA publishes NFPA 10, the primary standard covering the selection,
installation, inspection, maintenance, and testing of portable fire extinguishers.
10.If corrosion significantly weakens an extinguisher cylinder, it should be:
A. Repainted and returned to service
B. Filled with more agent
C. Removed from service according to applicable requirements
D. Used only outdoors
Answer: C
Severe corrosion can compromise cylinder integrity and requires the extinguisher
to be removed from service to maintain safety.
In the next section, I'll continue with Questions 11–50 in the same format.
Maintenance Newest (2025 - 2026 Update)
From Real Past Papers Questions – A Set Of
100 Most Common Exam Frequently Tested
Questions And Answers In Details 100%
Verified Exam Highly Recommendable Grade
A+ (Verified Answers) Plus Rationales | Instant
Download Pdf
1. What is the primary purpose of a portable fire extinguisher?
A. To replace the fire department
B. To extinguish small fires during the early stage
C. To ventilate smoke from a building
D. To activate the fire alarm
Answer: B
Portable fire extinguishers are designed to control or extinguish incipient-stage
fires before they grow beyond the capability of one person.
2. Before servicing a fire extinguisher, the technician should first:
A. Remove the inspection tag
B. Discharge the extinguisher
C. Verify the extinguisher is safe to service and follow required safety procedures
,D. Paint the cylinder
Answer: C
Following proper safety procedures helps prevent accidental discharge, injury, or
equipment damage during maintenance.
3. Which class of fire involves ordinary combustible materials such as wood,
paper, and cloth?
A. Class B
B. Class C
C. Class D
D. Class A
Answer: D
Class A fires involve common combustible materials including wood, paper, cloth,
rubber, and many plastics.
4. Which class of fire involves flammable liquids?
A. Class A
B. Class B
C. Class C
D. Class K
Answer: B
Class B fires involve flammable and combustible liquids such as gasoline, oil,
solvents, and grease.
5. A Class C fire involves:
A. Cooking oils
B. Ordinary combustibles
,C. Energized electrical equipment
D. Combustible metals
Answer: C
Class C fires involve energized electrical equipment. Once power is removed, the
fire is treated according to the remaining fuel.
6. Which fire extinguisher is commonly used on Class A, B, and C fires?
A. Water extinguisher
B. Carbon dioxide extinguisher
C. Multipurpose dry chemical extinguisher
D. Class D extinguisher
Answer: C
Multipurpose ABC dry chemical extinguishers are designed for use on Class A,
Class B, and Class C fires.
7. The pressure gauge on a stored-pressure extinguisher should normally
indicate:
A. Empty
B. Recharge
C. Overcharged
D. The operable or green range
Answer: D
A pressure gauge in the green operating range indicates the extinguisher has the
proper internal pressure for use.
8. During a routine inspection, a damaged safety seal should be:
A. Ignored
, B. Covered with tape
C. Replaced after verifying the extinguisher has not been used or tampered with
D. Painted
Answer: C
A broken tamper seal may indicate use or tampering and must be addressed
before returning the extinguisher to service.
9. Which organization publishes the standard for portable fire extinguishers
commonly referenced during maintenance?
A. OSHA
B. EPA
C. NFPA
D. FEMA
Answer: C
The NFPA publishes NFPA 10, the primary standard covering the selection,
installation, inspection, maintenance, and testing of portable fire extinguishers.
10.If corrosion significantly weakens an extinguisher cylinder, it should be:
A. Repainted and returned to service
B. Filled with more agent
C. Removed from service according to applicable requirements
D. Used only outdoors
Answer: C
Severe corrosion can compromise cylinder integrity and requires the extinguisher
to be removed from service to maintain safety.
In the next section, I'll continue with Questions 11–50 in the same format.
