HAZWOPER 40 Exam Guide - Confined
Spaces, Emergency Procedure & Material
Sampling (New 2024/ 2025 Update) Questions
and Verified Answers| 100% Correct| A
Grade
Confined Spaces
QUESTION
Lesson Description
Answer:
This lesson, Confined Spaces, focuses on OSHA Standard 29 CFR 1910.146, which regulates
what the employer must do to make confined space entry work safe for workers. This lesson
addresses both the employer's and the employee's confined space responsibilities. It reviews the
types of hazards (i.e., soil, atmosphere, and gas) that must be identified and controlled. Specific
details are provided pertaining to the use of proper engineering controls like positive- and
negative-pressure ventilation systems, as well as the selection and use of PPE (such as
appropriate respirators and body harness systems). Among the many issues addressed, the
discussion of pre-entry training, rescue team responsibilities, and ensuring that all permit
procedures are followed is of primary importance.
QUESTION
Learning Objectives
At the completion of this lesson, you will be able to:
Answer:
List OSHA guidelines for what should be documented on an entry permit.
Name three main atmospheric hazards that cause concern in confined spaces.
Discuss the two types of forced ventilation.
,Describe the two most common causes of asphyxia.
Identify concerns associated with lacerations.
QUESTION
Introduction
Answer:
The possibility of the occurrence of confined spaces at hazardous waste sites should not be
overlooked. Entering a confined space can be deadly. It is important to recognize confined
spaces and to distinguish confined spaces from permit-required confined spaces. Employees
must be made aware of the existence of confined spaces at hazardous waste sites.
NOTE:
All individuals involved in confined space entry are required to have appropriate levels of
confined space entry training.
QUESTION
Lesson Focus
This lesson focuses on the following topics:
Answer:
Part 1: Procedures and Responsibilities
Prior to Entering a Confined Space
Permit-Required Confined Space Entry
Personnel Responsibilities in a Confined Space Work Area
Part 2: Protective Measures
Ventilation
Safety Equipment and Clothing
Confined Space Rescue
Medical Issues
Part 3: Excavations
Excavation
,Planning for Safety
The Employer's Safety and Health Program
Cave-ins and Protective Support Systems
Safety Precautions
Installation and Removal of Protective Systems
QUESTION
Prior to Entering a Confined Space
Answer:
Before entering a confined space, a review of the specific guidelines for appropriate safe entry
and emergency exit is vital. Actual entry into a confined space should only be allowed after the
following has taken place:
All entrants and attendants have received proper training and equipment.
The designated authority on-site has issued the proper permit.
The appropriate PPE is in place and utilized.
OSHA's required procedures have been put into effect, especially the "buddy system.
The procedures set forth in the following sections are based on OSHA Standard in 29 CFR
1910.146. They are a means of protecting worker health and of avoiding accidental injury and
death associated with entering, working in, and exiting confined spaces. They are designed to
make the confined space safe, to make workers aware of related hazards, and to train in safe
work practices.
A preliminary evaluation of the site's characteristics must be performed prior to site entry. A
secondary more detailed evaluation must be conducted to further identify existing hazards to aid
in the selection of appropriate engineering controls and personal protective equipment (PPE) for
future site activities. The evaluation must include all suspected conditions that are immediately
dangerous to life or health (IDLH) or that may cause serious harm to employees (e.g., confined
space entry, potentially explosive or flammable situations, visible vapor clouds, etc.).
QUESTION
Permit-Required Confined Space Entry
Answer:
As the name implies, a work permit is required prior to entering a permit space. Common types
of spaces that would require permits include storage tanks, process vessels, silos, vaults, storage
bins, hoppers, ship compartments, exhaust ducts, sewers, tunnels, and boilers. A space does not
have to be enclosed to be considered a permit-required confined space. Pits, trenches, and open-
, topped vats also fit the OSHA description since they may have limited means of entry and exit,
and are not intended for habitation, and could possess hazardous atmospheres.
OSHA has determined that individuals who enter permit-required confined spaces are at a
significant risk of death or injury. Therefore, all permit-required confined spaces are to be
considered dangerous until proven otherwise
QUESTION
Permit System
Answer:
To ensure the safety of the individual entering the confined space, the permit system has been
devised. In reality, the permit is a mandatory checklist of the precautionary measures that need to
be taken before entry.
It is mandatory that an employer implement a functional permit program if a permit-required
confined space is on the premises. Before entry is authorized, the employer must document:
Measures that have been implemented to prevent unauthorized entry.
Hazards that have been identified and evaluated before employee entry.
The means, procedures, and practices necessary for safe permit space entry operations and show
these to have been developed and implemented.
IMAGE:
https://player.360training.com/ICPFileSystem/PersistentAssets/160953/281133/permit_system.p
df
QUESTION
Entry Permit OSHA Guidelines
Answer:
Usually a company or municipality will develop its own format for the permit. OSHA provides
the following guidelines on what needs to be documented on an entry permit:
The permit space to be entered
The purpose of the entry
The date and the authorized duration of the entry permit
The authorized entrants by name, or by a means that will allow the attendant to determine
quickly and accurately which authorized attendants are within the space
Spaces, Emergency Procedure & Material
Sampling (New 2024/ 2025 Update) Questions
and Verified Answers| 100% Correct| A
Grade
Confined Spaces
QUESTION
Lesson Description
Answer:
This lesson, Confined Spaces, focuses on OSHA Standard 29 CFR 1910.146, which regulates
what the employer must do to make confined space entry work safe for workers. This lesson
addresses both the employer's and the employee's confined space responsibilities. It reviews the
types of hazards (i.e., soil, atmosphere, and gas) that must be identified and controlled. Specific
details are provided pertaining to the use of proper engineering controls like positive- and
negative-pressure ventilation systems, as well as the selection and use of PPE (such as
appropriate respirators and body harness systems). Among the many issues addressed, the
discussion of pre-entry training, rescue team responsibilities, and ensuring that all permit
procedures are followed is of primary importance.
QUESTION
Learning Objectives
At the completion of this lesson, you will be able to:
Answer:
List OSHA guidelines for what should be documented on an entry permit.
Name three main atmospheric hazards that cause concern in confined spaces.
Discuss the two types of forced ventilation.
,Describe the two most common causes of asphyxia.
Identify concerns associated with lacerations.
QUESTION
Introduction
Answer:
The possibility of the occurrence of confined spaces at hazardous waste sites should not be
overlooked. Entering a confined space can be deadly. It is important to recognize confined
spaces and to distinguish confined spaces from permit-required confined spaces. Employees
must be made aware of the existence of confined spaces at hazardous waste sites.
NOTE:
All individuals involved in confined space entry are required to have appropriate levels of
confined space entry training.
QUESTION
Lesson Focus
This lesson focuses on the following topics:
Answer:
Part 1: Procedures and Responsibilities
Prior to Entering a Confined Space
Permit-Required Confined Space Entry
Personnel Responsibilities in a Confined Space Work Area
Part 2: Protective Measures
Ventilation
Safety Equipment and Clothing
Confined Space Rescue
Medical Issues
Part 3: Excavations
Excavation
,Planning for Safety
The Employer's Safety and Health Program
Cave-ins and Protective Support Systems
Safety Precautions
Installation and Removal of Protective Systems
QUESTION
Prior to Entering a Confined Space
Answer:
Before entering a confined space, a review of the specific guidelines for appropriate safe entry
and emergency exit is vital. Actual entry into a confined space should only be allowed after the
following has taken place:
All entrants and attendants have received proper training and equipment.
The designated authority on-site has issued the proper permit.
The appropriate PPE is in place and utilized.
OSHA's required procedures have been put into effect, especially the "buddy system.
The procedures set forth in the following sections are based on OSHA Standard in 29 CFR
1910.146. They are a means of protecting worker health and of avoiding accidental injury and
death associated with entering, working in, and exiting confined spaces. They are designed to
make the confined space safe, to make workers aware of related hazards, and to train in safe
work practices.
A preliminary evaluation of the site's characteristics must be performed prior to site entry. A
secondary more detailed evaluation must be conducted to further identify existing hazards to aid
in the selection of appropriate engineering controls and personal protective equipment (PPE) for
future site activities. The evaluation must include all suspected conditions that are immediately
dangerous to life or health (IDLH) or that may cause serious harm to employees (e.g., confined
space entry, potentially explosive or flammable situations, visible vapor clouds, etc.).
QUESTION
Permit-Required Confined Space Entry
Answer:
As the name implies, a work permit is required prior to entering a permit space. Common types
of spaces that would require permits include storage tanks, process vessels, silos, vaults, storage
bins, hoppers, ship compartments, exhaust ducts, sewers, tunnels, and boilers. A space does not
have to be enclosed to be considered a permit-required confined space. Pits, trenches, and open-
, topped vats also fit the OSHA description since they may have limited means of entry and exit,
and are not intended for habitation, and could possess hazardous atmospheres.
OSHA has determined that individuals who enter permit-required confined spaces are at a
significant risk of death or injury. Therefore, all permit-required confined spaces are to be
considered dangerous until proven otherwise
QUESTION
Permit System
Answer:
To ensure the safety of the individual entering the confined space, the permit system has been
devised. In reality, the permit is a mandatory checklist of the precautionary measures that need to
be taken before entry.
It is mandatory that an employer implement a functional permit program if a permit-required
confined space is on the premises. Before entry is authorized, the employer must document:
Measures that have been implemented to prevent unauthorized entry.
Hazards that have been identified and evaluated before employee entry.
The means, procedures, and practices necessary for safe permit space entry operations and show
these to have been developed and implemented.
IMAGE:
https://player.360training.com/ICPFileSystem/PersistentAssets/160953/281133/permit_system.p
df
QUESTION
Entry Permit OSHA Guidelines
Answer:
Usually a company or municipality will develop its own format for the permit. OSHA provides
the following guidelines on what needs to be documented on an entry permit:
The permit space to be entered
The purpose of the entry
The date and the authorized duration of the entry permit
The authorized entrants by name, or by a means that will allow the attendant to determine
quickly and accurately which authorized attendants are within the space
