JBL STUDY GUIDE FOR MOD 1 EXAM 2025 | ALL
QUESTIONS AND CORRECT ANSWERS | ALREADY
GRADED A+ | VERIFIED ANSWERS | NEWEST EXAM
The use of master streams on a building should be prohibited if
__________. ---------CORRECT ANSWER-----------------Crews are working
inside the building
What is a characteristic of a fog stream? ---------CORRECT ANSWER--------
---------it creates water droplets with a large surface area
What is an advantage of a straight stream over a fog stream? ---------
CORRECT ANSWER-----------------longer reach
What is the most frequently used hose line for interior attack? ---------
CORRECT ANSWER-----------------1 3/4"
What is the target of the hose stream in a direct attack? ---------CORRECT
ANSWER-----------------the base of the fire
Which firefighting attack, if successful, will result in the least amount of
property damage? ---------CORRECT ANSWER-----------------offensive
,The primary hazard of __________ is that it can displace oxygen from the
atmosphere ---------CORRECT ANSWER-----------------Carbon Dioxide
The realistic duration of an SCBA air supply is __________ than the rated
duration. ---------CORRECT ANSWER-----------------Much Less
The thick, quilted layer of a turnout coat is the __________. ---------
CORRECT ANSWER-----------------Thermal Barrier
Turnout coats and trousers have a protective system that consists of _____
layers. ---------CORRECT ANSWER-----------------3
What is a commonly used technique for conserving SCBA air? ---------
CORRECT ANSWER-----------------Skip Breathing
What is an approved material for structural firefighting boots? ---------
CORRECT ANSWER-----------------Leather
What is the primary function of the moisture barrier in structural firefighting
PPE? ---------CORRECT ANSWER-----------------Keep Liquids and Moisture
from reaching the skin
When is it acceptable to remove the inner thermal layer from a turnout
coat? ---------CORRECT ANSWER-----------------Only when Cleaning
,Which component of structural turnout coats is critical for protecting the
body from steam burns? ---------CORRECT ANSWER-----------------Moisture
Barrier
Which fire gas is a product of incomplete combustion of common
household items? ---------CORRECT ANSWER-----------------Phosgene
Which fire gas kills by replacing oxygen in the blood? ---------CORRECT
ANSWER-----------------Carbon Monoxide
Which gas is most commonly produced by residential or commercial fires?
---------CORRECT ANSWER-----------------Hydrogen Cyanide
Which NFPA standard deals with open-circuit self-contained breathing
apparatus? ---------CORRECT ANSWER-----------------1981
Which NFPA standard deals with protective clothing and equipment for
wildland firefighting? ---------CORRECT ANSWER-----------------1977
Which part of the structural firefighting PPE ensemble is designed to
protect the neck and ears? ---------CORRECT ANSWER-----------------The
protective hood
, Which statement about the use of a protective hood is correct? ---------
CORRECT ANSWER-----------------Don the SCBA first then put the mask on
and pull the hood over it
Which type of breathing apparatus recycles the user's exhaled air? ---------
CORRECT ANSWER-----------------Closed Circuit
Which statement about the use of a protective hood is correct? ---------
CORRECT ANSWER-----------------It protects the neck and Ears
Which type of breathing apparatus recycles the user's exhaled air? ---------
CORRECT ANSWER-----------------Closed Circuit
Which situation is indicated when you open a door and the smoke thins, but
the smoke still fills the door? ---------CORRECT ANSWER-----------------The
Fire is below the door
Which term refers to the weight of a gas compared to air? ---------
CORRECT ANSWER-----------------Vapor Density
Which toxic gas is commonly produced by fire? ---------CORRECT
ANSWER-----------------Hydrogen Cyanide
A chemical reaction that produces heat is __________. ---------CORRECT
ANSWER-----------------exothermic
QUESTIONS AND CORRECT ANSWERS | ALREADY
GRADED A+ | VERIFIED ANSWERS | NEWEST EXAM
The use of master streams on a building should be prohibited if
__________. ---------CORRECT ANSWER-----------------Crews are working
inside the building
What is a characteristic of a fog stream? ---------CORRECT ANSWER--------
---------it creates water droplets with a large surface area
What is an advantage of a straight stream over a fog stream? ---------
CORRECT ANSWER-----------------longer reach
What is the most frequently used hose line for interior attack? ---------
CORRECT ANSWER-----------------1 3/4"
What is the target of the hose stream in a direct attack? ---------CORRECT
ANSWER-----------------the base of the fire
Which firefighting attack, if successful, will result in the least amount of
property damage? ---------CORRECT ANSWER-----------------offensive
,The primary hazard of __________ is that it can displace oxygen from the
atmosphere ---------CORRECT ANSWER-----------------Carbon Dioxide
The realistic duration of an SCBA air supply is __________ than the rated
duration. ---------CORRECT ANSWER-----------------Much Less
The thick, quilted layer of a turnout coat is the __________. ---------
CORRECT ANSWER-----------------Thermal Barrier
Turnout coats and trousers have a protective system that consists of _____
layers. ---------CORRECT ANSWER-----------------3
What is a commonly used technique for conserving SCBA air? ---------
CORRECT ANSWER-----------------Skip Breathing
What is an approved material for structural firefighting boots? ---------
CORRECT ANSWER-----------------Leather
What is the primary function of the moisture barrier in structural firefighting
PPE? ---------CORRECT ANSWER-----------------Keep Liquids and Moisture
from reaching the skin
When is it acceptable to remove the inner thermal layer from a turnout
coat? ---------CORRECT ANSWER-----------------Only when Cleaning
,Which component of structural turnout coats is critical for protecting the
body from steam burns? ---------CORRECT ANSWER-----------------Moisture
Barrier
Which fire gas is a product of incomplete combustion of common
household items? ---------CORRECT ANSWER-----------------Phosgene
Which fire gas kills by replacing oxygen in the blood? ---------CORRECT
ANSWER-----------------Carbon Monoxide
Which gas is most commonly produced by residential or commercial fires?
---------CORRECT ANSWER-----------------Hydrogen Cyanide
Which NFPA standard deals with open-circuit self-contained breathing
apparatus? ---------CORRECT ANSWER-----------------1981
Which NFPA standard deals with protective clothing and equipment for
wildland firefighting? ---------CORRECT ANSWER-----------------1977
Which part of the structural firefighting PPE ensemble is designed to
protect the neck and ears? ---------CORRECT ANSWER-----------------The
protective hood
, Which statement about the use of a protective hood is correct? ---------
CORRECT ANSWER-----------------Don the SCBA first then put the mask on
and pull the hood over it
Which type of breathing apparatus recycles the user's exhaled air? ---------
CORRECT ANSWER-----------------Closed Circuit
Which statement about the use of a protective hood is correct? ---------
CORRECT ANSWER-----------------It protects the neck and Ears
Which type of breathing apparatus recycles the user's exhaled air? ---------
CORRECT ANSWER-----------------Closed Circuit
Which situation is indicated when you open a door and the smoke thins, but
the smoke still fills the door? ---------CORRECT ANSWER-----------------The
Fire is below the door
Which term refers to the weight of a gas compared to air? ---------
CORRECT ANSWER-----------------Vapor Density
Which toxic gas is commonly produced by fire? ---------CORRECT
ANSWER-----------------Hydrogen Cyanide
A chemical reaction that produces heat is __________. ---------CORRECT
ANSWER-----------------exothermic
