Fire Watcher MCQs Questions

Having the right multiple choice questions to practice with makes it much easier to get ready for a Fire Watcher job test. Fire Watcher MCQs can help you learn how to take real tests and improve your safety knowledge, whether you’re applying for a job with Saudi Aramco, SABIC, or any other oil and gas project.

This guide has 50 important Fire Watcher MCQs with answers that will help you feel more confident and get ready for written tests, safety assessments, and interviews. These practice questions cover important topics like fire prevention, hot work safety, emergency response, and hazard identification. They cover everything a Fire Watcher needs to know to do well.

1. What is the main duty of a Fire Watcher during hot work?

Monitor fire hazards and prevent ignition
Watch workers only
Take photos of work
Clean the area

Correct Answer: Monitor fire hazards and prevent ignition

Reason: The Fire Watcher’s main duty is to monitor fire hazards, watch for sparks, and prevent any ignition during hot work. Their focus is on ensuring safety and stopping fires before they start.

2. Which document allows hot work to begin in Saudi Aramco sites?

Work Order
Safety Manual
Hot Work Permit
Gate Pass

Correct Answer: Hot Work Permit

Reason: Hot Work Permit is required before starting any hot work in Aramco/SABIC sites. It ensures all safety precautions are checked and approved before work begins.

3. A fire watch should remain at the site after hot work for at least:

60 minutes
5 minutes
Leave immediately
30 minutes

Correct Answer: 30 minutes

Reason: A fire watch must stay for at least 30 minutes after hot work to ensure no hidden sparks, embers, or heat sources cause a fire. This waiting period is a critical safety requirement.

4. Which type of fire extinguisher needed for hot work activity? *

CO₂ Only
ABC Dry Powder Fire Extinguisher
Sand only
Water Bottle

Correct Answer: ABC Dry Powder Fire Extinguisher

Reason: An ABC Dry Powder fire extinguisher is the minimum requirement for hot work because it can handle multiple fire types solid materials, flammable liquids, and electrical fires making it the safest and most versatile choice.

5. Sparks from grinding can travel up to:

20M (65 ft)
Maximum 23M (75 ft )
10M (32 ft)
Minimum 3M (10 ft)

Correct Answer: Maximum 23M (75 ft )

Reason: Grinding sparks can reach up to 23 meters (75 feet) in some cases, depending on speed, material, and angle. This is why hot work areas require proper barriers and safety controls.

6. Which are examples of hot work?

Signing papers
Drinking water
Cutting
Welding

Correct Answer: Cutting & Welding

Reason: Welding and cutting are both hot work activities because they involve heat, sparks, and ignition sources. These tasks require permits, fire watch, and proper safety controls.

7. What should be done if a fire starts?

Ignore it
Run away
Call family
Alert workers and use extinguisher

Correct Answer: Alert workers and use extinguisher

Reason: If a fire starts, the proper action is to alert nearby workers and use the fire extinguisher if it is safe to do so. Quick response helps prevent the fire from spreading.

8. Which item is not needed in hot work?

Water hose
Fire blanket
Mobile charger
Gas detector

Correct Answer: Mobile charger

Reason: A mobile charger is not required for hot work. Hot work requires safety tools such as fire blankets, gas detectors, and water hoses to prevent or control fire hazards.

9. Flashback arrestor is used on:

Water hose
Gas Welding machine
Electric drill
Fire blanket

Correct Answer: Gas Welding Machine

Reason: A flashback arrestor is installed on gas welding machine to stop backfire or reverse gas flow, preventing explosions. It is a key safety device in gas welding.

10. When should a fire watch stop hot work?

Feeling bored
Unsafe conditions appear
Supervisor tells
Lunch break

Correct Answer: Unsafe conditions appear

Reason: A fire watch must stop hot work immediately when any unsafe condition appears, such as sparks near flammable materials or equipment failure. Safety always comes first.

11. What are signs of gas leakage?

Hissing sound
Smell
Colorful light
Sunshine

Correct Answer: Hissing Sound & Smell

Reason: Smell and a hissing sound are common signs of gas leakage. These indicators help detect leaks quickly so the area can be made safe.

12. Hot work includes:

Cleaning floor
Welding / Cutting
Sweeping
Painting

Correct Answer: Welding / Cutting

Reason: Hot work includes welding, cutting, and any activity that produces heat, sparks, or flames. These tasks require permits and strict safety controls.

13. Before hot work starts, the area must be:

Dirty
Poorly ventilated
Clean and free from flammables
Dark

Correct Answer: Clean and free from flammables

Reason: Before starting hot work, the area must be clean, well-prepared, and free from any flammable materials. This reduces the risk of sparks causing a fire.

14. Which gases are used in gas welding?

Nitrogen
Acetylene
Carbon monoxide
Oxygen

Correct Answer: Oxygen & Acetylene

Reason: Gas welding typically uses oxygen and acetylene together. This combination produces a high-temperature flame needed for welding and cutting metals.

15. A fire watch must stand:

Behind a wall
Far away
On roof
Where he can see sparks directly

Correct Answer: Where he can see sparks directly

Reason: A fire watch must stand in a position where he can clearly see the sparks and the hot work area directly. This allows quick response if a fire starts.

16. Fire watch must have which items?

Extra phone
Headphones
Fire blanket
Fire extinguisher

Correct Answer: Fire blanket & Fire extinguisher

Reason: A fire watch must have a fire extinguisher and a fire blanket to control sparks and stop any small fire immediately. These are essential safety tools during hot work.

17. Which extinguisher is best for electrical fire?

Water
Foam
CO₂
Sand

Correct Answer: CO₂

Reason: A CO₂ extinguisher is best for electrical fires because it does not conduct electricity and safely removes oxygen from the fire without damaging electrical equipment.

18. What is PPE for a fire watcher?

Slippers
Hard hat, gloves, goggles
Sunglasses only
Loose clothes

Correct Answer: Hard hat, gloves, goggles

Reason: A fire watcher must wear proper PPE including a hard hat, gloves, and goggles to stay protected from sparks and hazards during hot work.

19. How many fire classes (types of fire) are commonly used in safety standards?

Correct Answer: 5

Reason: Most international safety standards recognize 5 fire classes (A, B, C, D, and K/F). These cover solid, liquid, electrical, metal, and cooking oil fires.

20. The fire watch must be trained in:

First aid only
Fire extinguisher use
Cooking
Computer typing

Correct Answer: Fire extinguisher use

Reason: A fire watch must be trained in using a fire extinguisher to respond quickly if a fire starts.

21. Fire can start due to which reasons?

Sparks
Oil spills
Clean water
Cool weather

Correct Answer: Sparks & Oil spills

Reason: Sparks and oil spills are common causes of fires, especially during hot work.

22. Which gas in a confined space becomes dangerous first due to displacement of oxygen?

Carbon Dioxide
Hydrogen
Helium
Nitrogen

Correct Answer: Nitrogen

Reason: Nitrogen is an inert gas that displaces oxygen silently without smell or warning. It causes sudden unconsciousness, making it extremely dangerous in confined spaces.

23. How many main types of fire extinguishers are commonly used?

Correct Answer: 5

Reason: There are 5 main types of fire extinguishers (Water, Foam, CO₂, Dry Chemical, and Wet Chemical). Each type is designed for different classes of fire.

24. A Class B fire should not be extinguished with which type?

CO₂
Wet Chemical
Foam
Dry Chemical Powder

Correct Answer: Wet Chemical

Reason: Wet Chemical extinguishers are not suitable for Class B fires (flammable liquids). They are designed for kitchen/grease fires. Class B fires require foam, CO₂, or dry chemical.

25. Sparks falling into gaps can cause:

Dust only
Nothing
Water flow
Hidden fire

Correct Answer: Hidden fire

Reason: Sparks falling into gaps can start a hidden fire, which may burn unnoticed until it becomes dangerous.

26. Before hot work, fire watch must check:

Music volume
Lunch break timing
Fire extinguisher pressure
Flammable materials

Correct Answer: Fire extinguisher pressure & Flammable materials

Reason: The fire watch must check for flammable materials and ensure the fire extinguisher pressure is correct before starting hot work.

27. What should be removed before welding?

PPE
Metal
Oil and flammable materials
Water

Correct Answer: Oil and flammable materials

Reason: Before welding, oil, grease, and any flammable materials must be removed to prevent sparks from causing a fire.

28. If gas leak is detected:

Close eyes
Stop hot work immediately
Continue work
Ignore it

Correct Answer: Stop hot work immediately

Reason: If a gas leak is detected, hot work must be stopped immediately to prevent fire or explosion.

29. What is the color of a CO₂ extinguisher?

Silver label
Black label
Blue label
Green label

Correct Answer: Black label

A CO₂ extinguisher is identified by a black label, used mainly for electrical and flammable liquid fires.

30. Grinding produces:

Wind
Sparks and heat
Cold air
Water

Correct Answer: Sparks and heat

Reason: Grinding generates sparks and heat, which is why the area must be controlled for fire hazards.

31. When fire occurs, fire watch should:

Hide
Raise alarm
Ignore it
Use fire extinguisher

Correct Answer: Raise alarm and Use fire extinguisher

Reason: A fire watch must raise the alarm and use the fire extinguisher to control the fire immediately.

32. Fire triangle includes:

Dust, air, soil
Light, sound, pressure
Heat, fuel, oxygen
Water, sand, CO₂

Correct Answer: Heat, fuel, oxygen

Reason: The fire triangle consists of heat, fuel, and oxygen. All three must be present for fire to start and continue burning.

33. Before using fire extinguisher, check:

Color
Brand
Weight and pressure
Price

Correct Answer: Weight and pressure

Reason: You must check the weight and pressure to ensure the extinguisher is usable.

34. Fire blanket is used for:

Catching sparks
Covering hot food
Making shade
Decoration

Correct Answer: Catching sparks

Reason: A fire blanket is used for catching sparks and preventing them from igniting nearby materials. It helps protect surfaces and control fire hazards during hot work.

35. Which extinguisher removes heat as its primary action?

CO₂
Water
Foam
Dry Chemical Powder

Correct Answer: Water

Reason: A water extinguisher cools the fire by removing heat. The key action needed to break the fire triangle.

36. Key parts of fire triangle are:

Mobile
Heat
Water
Fuel

Correct Answer: Heat and Fuel

Reason: The two key fire triangle elements here are fuel and heat.

37. During hot work inside a confined space, which condition makes fire risk increase the most?

Temperature above 30°C
Ventilation duct running at low speed
Presence of flammable vapors above LEL
Humidity level below 20%

Correct Answer: Presence of flammable vapors above LEL

Reason: Flammable vapors above the Lower Explosive Limit (LEL) can ignite instantly from sparks or heat, making this the highest-risk condition in confined spaces.

38. Which extinguisher is suitable for flammable gases ?

Water
CO₂
Dry Chemical Powder
Both B & C

Correct Answer: Both B & C

Reason: Flammable gas fires (Class C) require CO₂ or Dry Chemical Powder, both of which cut off oxygen and interrupt combustion safely.

39. Fire watch must check hoses for:

Length
Damage and leakage
Color
Weight

Correct Answer: Damage and leakage

Reason: Hoses must be inspected for damage and leakage to ensure safety.

40. Which fire class is for flammable liquids?

Class C
Class D
Class B
Class A

Correct Answer: Class B

Reason: Class B fires involve flammable liquids such as fuel, oil, grease, and solvents. These require the correct type of extinguisher to avoid spreading the fire.

41. PPE for fire watch includes:

Gloves
Safety goggles
Fancy shoes
Loose shirt

Correct Answer: Gloves and Safety goggles

Reason: Fire watch PPE includes gloves and safety goggles for protection.

42. Aramco standard requires hot work area to be:

Closed with no ventilation
Clear and barricaded
Crowded
Dark

Correct Answer: Clear and barricaded

Reason: Aramco standards require the hot work area to be clear, well-organized, and properly barricaded to prevent unauthorized entry and ensure safe operations.

43. Oxygen cylinder color is usually:

Yellow
Black
Green
Red

Correct Answer: Green

Reason: Oxygen cylinders are typically green in many industrial standards.

44. What can cause fire during cutting?

Ice
Cold tools
Water
Sparks

Correct Answer: Sparks

Reason: Cutting generates sparks, which can ignite nearby flammable materials.

45. Which extinguisher type is most suitable in a confined space, considering oxygen displacement risk?

Water Mist
Dry Chemical Powder
CO₂
Foam

Correct Answer: Water mist

Reason: Water mist works safely in confined spaces without displacing oxygen or creating toxic residues.

46. Fire watch responsibilities include:

Monitoring sparks
Making videos
Removing combustibles
Sleeping

Correct Answer: Monitoring sparks & Removing combustibles

Reason: A fire watch is responsible for removing combustibles and monitoring sparks to prevent any fire from starting during hot work.

47. Which extinguisher can be used on both Class A and Class C fires?

CO₂
Foam
Dry Chemical Powder
Water

Correct Answer: Dry Chemical Powder

Reason: Dry Chemical Powder can be used on Class A fires (solid combustibles) and Class C fires (electrical). It works by interrupting the chemical reaction of the fire and is safe for electrical equipment.

48. Which extinguisher is least suitable inside a control room full of sensitive electronics?

Water Mist
Clean Agent (FM-200)
Dry Chemical Powder
CO₂

Correct Answer: Dry Chemical Powder

Reason: Dry Chemical Powder is the least suitable because the powder can damage sensitive electronics and create residue that is difficult to clean.

49. A safe fire watch keeps:

Toys
Extra shoes
Curtains
Extinguisher, water, blanket

Correct Answer: Extinguisher, water, blanket

Reason: A fire watch must keep an extinguisher, water, and fire blanket nearby.

50. After hot work ends, fire watch must:

Lock tools
Leave immediately
Re-check the area
Stay for 30 minutes

Correct Answer: Stay for 30 minutes and Re-check the area

Reason: A fire watch must stay for at least 30 minutes after hot work and re-check the area to ensure no hidden sparks or heat sources can start a fire.

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