FREE AND STUDY GAMES ABOUT PORTABLE FIRE EXT.

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FREE AND STUDY GAMES ABOUT PORTABLE FIRE EXT.

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -48 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Is potassium bicarbonate or sodium bicarbonate more effective?

Answer:

Potassium bicarbonate is 1 and 1/2 times more effective but also more expensive

Question 2: What is considered ordinary hazard occupancies?

Answer:

department stores, warehouses, and manufacturing buildings of average hazard

Question 3: What does the mnemonic PASS stand for?

Answer:

-Pull pin -Aim -Squeeze -Sweep

Question 4: What is the dry chemical agent MONNEX?

Answer:

carbonic powder base dry chemical agent

Question 5: Where are halon extinguishers used?

Answer:

Aircrafts, military use, and in the Channel Tunnel.

Can also be found in:

-Flammable liquid storage tanks -Electronic and electrical cabinets -Computer rooms -Paint booths

Question 6: What is the size of wheeled extinguishing units?

Answer:

34kg to 160kg

Question 7: What are some class C extinguishing agents?

Answer:

-dry chem -CO2 -Halon -inert gases such as argon

Question 8: What fire extinguishers does a ladder have?

Answer:

Dry Chemical (20A60BC, 10-25sec, 2-4.5m) CO2 (10BC, 10-30sec, 1-2.5m) Metal X (D, 10-25sec, 2-4.5m)

Question 9: What metals does Metal X extinguisher put out?

Answer:

sodium, potassium, sodium/potassium alloys, or magnesium

Question 10: What is the main requirement of the extinguishing agent?

Answer:

it cannot conduct electricity

Question 11: What is saponification?

Answer:

it is a reaction that emulsifies the oil to form a type of soap that floats on the surface of the oil and prevents re-ignition of the oil vapors

Question 12: What does class C fire extinguishers put out?

Answer:

any class A or B fires involving active electrical equipment

Question 13: How much water does a backpack water extinguisher hold?

Answer:

20L Question 14: What is the fire extinguisher requirements for ordinary hazard occupancies?

Answer:

Class A = 2 units within 23m Class B = 10 units within 9m

Question 15: What type of fires is class K used for?

Answer:

commercial cooking units involving vegetable or animal oils and fats.

Question 16: What is considered light hazard occupancies?

Answer:

schools, office buildings, churches and other similar places

Question 17: What does a 1-A fire put out?

Answer:

50 pieces of 5x5x50cm boards

Question 18: What does a 1-B fire put out?

Answer:

0.09 sq. m of 6mm deep liquid fuel

Question 19: How do dry chemicals extinguish the fire?

Answer:

accomplished through oxygen exclusion (smothering) and the interruption of the chemical chain reaction Question 20: What is the fire extinguisher requirements for extra hazard occupancies?

Answer:

Class A = 4 units within 23m Class B = 40units within 9m Question 21: How much more efficient is an expert when using a fire extinguisher?

Answer:

2.5 times

Question 22: What is the symbol, and color of class A, B, C, D and K

Answer:

A= triangle, green B= square, red C= circle, blue D= star, yellow K= no symbol, none

Question 23: What are some class B extinguishing agents?

Answer:

-dry chemicals -CO2 -Halon -aqueous film forming foams (AFFF) -film forming fluoroproteins (FFFP) Question 24: What is the fire extinguisher requirements for light hazard occupancies?

Answer:

Class A = 2 units within 23m Class B = 5 units within 9m