Fire Hazards in Construction: Prevention and Response Strategies

Question 1

Which fire hazard classification applies to gasoline and oil?

Accepted Answer

Class B

Answer

Class A

Answer

Class C

Answer

Class K

Question 2

What type of fire extinguisher is best for putting out an electrical fire on a construction site?

Accepted Answer

Class C: Specifically designed for electrical fires.

Answer

Class A: For fires involving paper and wood.

Answer

Class B: For fires involving flammable liquids like gasoline.

Answer

Class D: For fires involving combustible metals like magnesium.

Question 3

What is the correct procedure for using a portable fire extinguisher?

Accepted Answer

PASS (Pull, Aim, Squeeze, Sweep)

Answer

SAFE (Shake, Aim, Fire, Extinguish)

Answer

RACE (Rescue, Alarm, Contain, Extinguish)

Answer

STOP (Pull, Aim, Spray, Sweep)

Question 4

What is the difference between a Class A fire extinguisher and a Class B fire extinguisher?

Accepted Answer

Class A is for wood and paper fires, Class B is for flammable liquid fires

Answer

Class A is for electrical fires, Class B is for liquid fires

Answer

Class A is for liquid fires, Class B is for electrical fires

Answer

Class A is for flammable gas fires, Class B is for metal fires

Question 5

Which of the following is NOT a step in an evacuation procedure?

Accepted Answer

Use elevators to evacuate

Answer

Stay calm and follow instructions

Answer

Report to a designated meeting point

Answer

Assist others who may need help

Question 6

Which of the following is the most prevalent cause of fires in construction sites?

Accepted Answer

Electrical malfunctions

Answer

Smoking

Answer

Arson

Answer

Natural disasters

Question 7

In a construction site, what is the primary function of a fire alarm?

Accepted Answer

Alerting occupants to a fire

Answer

Extinguishing fires

Answer

Preventing the spread of fires

Answer

Calling for emergency assistance

Question 8

During a construction site fire, what should be the initial action taken during evacuation?

Accepted Answer

Locating the nearest exit

Answer

Gathering personal belongings

Answer

Notifying the fire department

Answer

Activating the fire alarm

Question 9

Which of the following practices is unsafe and contributes to fire risks in construction sites?

Accepted Answer

Smoking in designated areas

Answer

Maintaining a clean work area

Answer

Using appropriate electrical cords

Answer

Storing flammable materials safely

Question 10

In the event of a fire, what is the construction site supervisor's primary responsibility?

Accepted Answer

Directing evacuations

Answer

Extinguishing the fire

Answer

Calling for medical help

Answer

Investigating the cause of the fire

Question 11

Which material is most likely to release toxic fumes upon combustion?

Accepted Answer

Plastic

Answer

Wood

Answer

Metal

Answer

Concrete

Question 12

What is the primary purpose of a fire watch in a construction site?

Accepted Answer

Detecting and suppressing fires

Answer

Monitoring fire alarms

Answer

Preventing unauthorized entry

Answer

Conducting safety inspections

Question 13

Which of the following is a common symptom associated with smoke inhalation?

Accepted Answer

Difficulty breathing

Answer

Nausea

Answer

Blurred vision

Answer

Muscle cramps

Question 14

When encountering a fire in a confined space, what action should be prioritized?

Accepted Answer

Evacuating the space immediately

Answer

Attempting to extinguish the fire

Answer

Containing the fire

Answer

Calling for emergency assistance

Question 15

What is the primary function of a fire alarm in a construction site?

Accepted Answer

To alert personnel to a fire and initiate evacuation

Answer

To automatically activate sprinkler systems

Answer

To contain the fire until firefighters arrive

Answer

To extinguish the fire before it spreads

Question 16

In case of a small fire, what should be the first response action?

Accepted Answer

Use a fire extinguisher

Answer

Evacuate the area

Answer

Call 911

Answer

Close all doors and windows

Question 17

Which material poses the highest fire hazard in a construction environment?

Accepted Answer

Wood

Answer

Concrete

Answer

Steel

Answer

Glass

Question 18

What is the purpose of a fire watch in construction?

Accepted Answer

To monitor for fires during hazardous activities

Answer

To ensure that fire extinguishers are properly maintained

Answer

To conduct regular fire drills

Answer

To investigate fire incidents

Question 19

Which of the following is NOT a safe work practice for preventing fires in construction environments?

Accepted Answer

Smoking in designated areas

Answer

Proper storage of flammable materials

Answer

Clearance of debris from work areas

Answer

Use of approved electrical equipment

Question 20

If a fire extinguisher fails to put out a fire, what should you do?

Accepted Answer

Evacuate the area and call 911

Answer

Continue using the fire extinguisher until the fire is out

Answer

Try to extinguish the fire with water

Answer

Search for another fire extinguisher

Question 21

In a multi-story building, what is the recommended evacuation route in case of a fire?

Accepted Answer

Use the fire escape

Answer

Take the elevator

Answer

Go to the roof

Answer

Wait for firefighters to arrive

Question 22

In a construction site evacuation, what is the main duty of the designated Fire Warden?

Accepted Answer

Ensuring the safe evacuation of all workers

Answer

Directing all workers to the closest exit

Answer

Activating the fire alarm system

Question 23

Fire alarm systems are designed to:

Accepted Answer

Detect smoke and flames and alert occupants.

Answer

Automatically suppress fires.

Answer

Control the spread of fire through automatic sprinklers.

Answer

Provide a means of escape and safe evacuation.

Question 24

During a fire evacuation, if you encounter a closed door, the recommended action to take is to:

Accepted Answer

Open it slowly and cautiously, checking for smoke and heat.

Answer

Force the door open immediately.

Answer

Touch the doorknob to check its temperature.

Answer

Ignore the door and continue evacuating along an alternative route.

Question 25

Which of the following materials is considered the most flammable?

Accepted Answer

Wood

Answer

Metal

Answer

Concrete

Answer

Glass

Question 26

Welding operations can pose several hazards. Which of the following is NOT a potential hazard associated with welding?

Accepted Answer

Chemical exposure

Answer

Electric shock

Answer

Fire sparks

Answer

Eye damage

Question 27

In the context of fire extinguishers, what does the acronym PASS stand for, and how should you use it?

Accepted Answer

Pull, Aim, Squeeze, Sweep

Answer

Prepare, Aim, Spray, Stop

Answer

Pull, Adjust, Shoot, Spray

Answer

Push, Activate, Spray, Secure

Question 28

In construction, what are the four main factors that must be considered when evaluating fire hazards?

Accepted Answer

Fuel, Oxygen, Heat, and Chemical Reactions

Answer

Building Materials, Electrical Systems, and Human Activity

Answer

Fire Extinguishers, Fire Alarms, and Evacuation Procedures

Answer

Fire Resistance Ratings, Flame Spread Indices, and Smoke Production Rates

Question 29

Which fire alarm system requires a person to start the alarm?

Accepted Answer

Manual

Answer

Automatic

Answer

Hybrid

Answer

Optical

Question 30

What is the primary purpose of a smoke alarm?

Accepted Answer

To detect smoke and trigger an alarm

Answer

To extinguish fires

Answer

To prevent electrical shorts

Answer

To suppress flames

Question 31

What is the recommended course of action if you encounter a fire?

Accepted Answer

Call for help and evacuate the area immediately

Answer

Attempt to extinguish it yourself

Answer

Wait for instructions

Answer

Use a nearby fire extinguisher

Question 32

Which of the following is an unlikely ignition source in construction environments?

Accepted Answer

Lightning strikes

Answer

Faulty electrical wiring

Answer

Smoking

Answer

Open flames

Question 33

What is the most effective way to activate a fire alarm?

Accepted Answer

Pull the fire alarm lever down

Answer

Break the glass panel on the alarm

Answer

Shout 'Fire!' repeatedly

Answer

Use the fire alarm app on your phone

Question 34

Which of the following is a safe practice to prevent fires in construction environments?

Accepted Answer

Store flammable materials in a designated, well-ventilated area

Answer

Allow smoking in designated areas

Answer

Use extension cords with multiple outlets

Answer

Leave space heaters unattended

Question 35

What is the primary function of a smoke detector?

Accepted Answer

To alert occupants to the presence of smoke

Answer

To put out a fire

Answer

To prevent smoke from spreading

Answer

To pinpoint the exact location of a fire

Question 36

What is the primary purpose of a fire safety plan in a construction setting, and list three essential components it should include?

Accepted Answer

To provide a comprehensive framework for preventing and responding to fires, including evacuation procedures and designated emergency contacts.

Answer

To minimize property damage in the event of a fire.

Answer

To assign specific roles and responsibilities to individuals in the event of a fire.

Answer

To ensure that all workers are familiar with the building's designated fire escape routes.

Question 37

Describe the potential consequences of disregarding fire safety regulations, providing specific examples to illustrate each consequence.

Accepted Answer

Increased risk of fires and explosions, such as the tragic fire at the Grenfell Tower in London.

Accepted Answer

Hindered evacuation and delayed emergency response, as seen in the devastating nightclub fire in Rhode Island.

Accepted Answer

Legal liabilities and financial penalties, like the hefty fines imposed on the owners of the Triangle Shirtwaist Factory after the deadly fire.

Answer

Minor inconvenience with no long-term consequences, such as a small fine for not having a fire extinguisher.

Question 38

When responding to a fire alarm, what is the most important action to take?

Accepted Answer

Evacuate the building immediately

Answer

Call the fire department

Answer

Attempt to extinguish the fire

Answer

Wait for further instructions

Question 39

What is the purpose of a building's fire rating?

Accepted Answer

To indicate its resistance to fire and ability to withstand collapse for a specific period.

Answer

To identify the type of fire alarm system needed.

Answer

To determine the number of fire extinguishers required.

Question 40

What is the correct sequence of steps for using a fire extinguisher using the PASS method?

Accepted Answer

Pull, Aim, Squeeze, Sweep

Answer

Aim, Pull, Squeeze, Sweep

Answer

Pull, Aim, Sweep, Squeeze

Answer

Squeeze, Pull, Aim, Sweep

Question 41

Which of the following is a proactive measure to prevent fires in construction environments?

Accepted Answer

Regular inspections of electrical systems and equipment

Answer

Allowing smoking in designated areas

Answer

Using candles or open flames for lighting

Answer

Storing flammable materials near heat sources

Question 42

What is the primary benefit of conducting fire drills in construction workplaces?

Accepted Answer

Familiarizing individuals with evacuation routes and emergency procedures

Answer

Testing the functionality of fire alarm systems

Answer

Providing opportunities to practice using fire extinguishers

Question 43

In the event of a building fire, what is the initial step you should take when evacuating?

Accepted Answer

Close doors and windows behind you

Answer

Grab your personal belongings

Answer

Use the elevator to evacuate

Answer

Wait for instructions from authorities

Question 44

Which of the following is an indication of potential fire hazards in construction environments?

Accepted Answer

Overloaded electrical outlets

Answer

Well-maintained workspaces

Answer

Accessible fire extinguishers

Answer

Proper ventilation systems

Question 45

What is the primary purpose of a fire alarm in a building?

Accepted Answer

To alert occupants to the presence of a fire

Answer

To evacuate people from the building

Answer

To extinguish fires effectively

Question 46

Which activity poses a significant fire risk in construction environments?

Accepted Answer

Welding and cutting operations

Answer

Use of fire-resistant materials

Answer

Sufficient lighting in work areas

Question 47

What is the most appropriate method to extinguish a small grease fire?

Accepted Answer

Smother it with a lid or baking soda

Answer

Leave the fire to burn itself out

Answer

Pour water directly onto the fire

Answer

Use a water-based fire extinguisher

Question 48

Which elements should be included in a comprehensive fire safety plan for a construction site?

Accepted Answer

Evacuation procedures, emergency contact information, and designated fire extinguisher locations

Answer

Fire extinguisher locations only

Answer

Evacuation procedures only

Question 49

What is the most effective way to prevent fires on construction sites?

Accepted Answer

Eliminating potential ignition sources

Answer

Conducting regular fire safety inspections

Answer

Installing and maintaining fire alarms

Answer

Storing flammable materials in designated, safe locations

Question 50

Which type of fire extinguisher is specifically designed for electrical fires?

Accepted Answer

Class C

Answer

Class A

Answer

Class B

Answer

Water-based extinguisher

Question 51

What is the primary responsibility of a fire watch on a construction site?

Accepted Answer

Monitoring for potential fire hazards and initiating emergency procedures if necessary.

Answer

Extinguishing small fires with a fire extinguisher.

Answer

Evacuating workers in case of a fire.

Question 52

What is a hot work permit, and why is it important?

Accepted Answer

A document authorizing specific tasks involving potential fire hazards, like welding or cutting, ensuring safety measures are in place.

Answer

A general permit required for all construction work on a site.

Answer

A permit issued to workers who operate specialized equipment.

Question 53

Which of these is NOT typically considered a major cause of fires on construction sites?

Accepted Answer

Lightning strikes

Answer

Improperly discarded smoking materials

Answer

Arson

Answer

Electrical malfunctions

Question 54

What are the key elements of a safe evacuation procedure on a construction site?

Accepted Answer

Following designated evacuation routes, maintaining calm, and assisting others as needed.

Answer

Using elevators to quickly evacuate the site.

Answer

Gathering personal belongings before evacuating.

Question 55

Which of the following practices directly violates fire safety regulations on construction sites?

Accepted Answer

Storing flammable materials near potential ignition sources.

Answer

Reporting any observed fire hazards promptly.

Answer

Wearing appropriate personal protective equipment (PPE).

Answer

Maintaining a clean and organized work area.