HAZWOPER 40 ANSWERS AND QUESTIONS SET A+
✔✔Trench shields prevent cave ins - ✔✔false
✔✔The depth at which an excavation needs attention from a registered professional
engineer is: - ✔✔20 feet
✔✔All systems have a set of manufacturer's tabulated data to be used for proper design
and installation of the equipment - ✔✔True
✔✔A surface encumbrance is anything that could create a ___________ in or around a
trench. - ✔✔Hazard
✔✔Each of the following is true of underground utilities except: - ✔✔They must always
be removed
✔✔When using ladders for egress from a trench, they must - ✔✔Be within 25 feet of all
workers
Extend 3 feet above the cut
Have a 4 to 1 angle
✔✔In trenches, each of the following is true of accumulating water hazards except: -
✔✔Special supports or shields are not allowed
✔✔Being dangerously close to a falling load is: - ✔✔Not allowed
✔✔Which of the following statements is true about trenches and excavations? - ✔✔A
trench is never wider than 15 feet
An excavation is a cavity in the earth's surface by cutting/removing earth
✔✔Aluminum hydraulic shores must be pumped to a minimum of ____ of pressure but
more is recommended - ✔✔750 lbs
,✔✔Air monitoring is required in confined spaces, including trenches, because they
present hazards such as: - ✔✔Methane gas and flammable vapors
Carbon monoxide and various chemicals
✔✔Which of the following are common test methods used for soil classification? -
✔✔Ribbon and thumb penetration
dry strength and sedimentation
✔✔This lateral cave in pressure can be as much as ___ pounds per square foot -
✔✔800
✔✔As soon as a trench or excavation reaches a depth of __ or more, fall protection
measures must be implemented - ✔✔6 feet
✔✔Which of the following is true about confined spaces? - ✔✔Large enough to perform
work with restricted entry or exit
Not designed for ongoing occupancy
✔✔What might be found in a permit space? - ✔✔Hazardous atmosphere
Engulfment hazard
obstacles that interfere with any attempt to exit the space
✔✔Permit-required confined space will often have which of the following hazards? -
✔✔Hazardous atmosphere
✔✔Are confined space accidents mostly preventable? - ✔✔Yes
✔✔A permit required confined space may have an interior shape that could - ✔✔Trap or
asphyxiate
✔✔The term IDLH refers to - ✔✔Immediately dangerous to life or health values
Exposure that may cause irreversible, adverse health effects
dangerous atmosphere that may impair an individuals ability to escape
✔✔An example of a confined space structure in which someone can become trapped or
suffocate is: - ✔✔A storage tank with inward sloping walls
✔✔A confined space permit is - ✔✔An authorization and a checklist to identify hazards
and precautions
✔✔A confined space entry permit is: - ✔✔Mandated by OSHA
A safety tool
A checklist that identifies hazards with protective measures
,✔✔Which of the following are responsibilities of the employer with regard to confined
spaces? - ✔✔Ensure that a competent person identifies all confined spaces in which
one or more of the employees it directs may work
Inform exposed employees by posting danger signs or by any other equally effective
means
Prevent entry of unauthorized persons
Maintain a written confined space entry program
✔✔When must a written permit space program be made available to employees or their
representatives? - ✔✔Prior to operations
✔✔An employer must ensure the following for entry into a permit space - ✔✔safe
methods for entering and exiting space
✔✔What is an employer required to do when a permit space is present at a worksite,
even though employees do not need to enter space? - ✔✔Take steps to prevent
employees from entering space
✔✔What are considered safe work practices for confined entry? - ✔✔Identify hazards
on the CSE permit
Test for flammability and potential for explosion
Check safety data sheets
Prevent entry of unauthorized persons
✔✔What is required before entering a confined space? - ✔✔Atmospheric testing
✔✔What are considered hazard control systems for confined spaces? - ✔✔Isolation
Lockout and tagout
Blanking
bleeding
ventilate with fresh air
flush with liquid
Purge the space with inert gas
✔✔What does blanking mean? - ✔✔Disconnecting or capping lines that may empty into
the permit space
✔✔Bleeding, ventilation, and flushing are all examples of: - ✔✔Confined space hazard
controls
✔✔Controlling and removing potential hazards from entering a confined space is a
control technique known as: - ✔✔Isolation
, ✔✔Controls for a confined space physical hazard may include blanking, double block
and bleed, and - ✔✔lock and tag out
✔✔Each person serving as an attendant must be listed on the confined space permit -
✔✔True
✔✔An employer must provide the opportunity for anyone affected by a permit space to
observe monitoring of the permit space - ✔✔true
✔✔The two principal types of respirators are: - ✔✔Supplied air and air purifying
✔✔CSE permit equipment ipcludes equipment for: - ✔✔B. Ventilation,
personalprotection, air testing and monitoring
✔✔What do we know about the entrant and the attendant? - ✔✔Both must be trained
as part of the CSE team
Both have a vital role in the CSE program
Both must know the hazards of confined space entry
✔✔Who is apart of the CSE team? - ✔✔An entry supervisor
an entrant
an attendant
response personnel
✔✔Even though the employer is responsible for providing confined space training, the
cost of the training is paid by the employee. - ✔✔False
✔✔Which of the following is an employer responsibility with regard to training
employees? - ✔✔Training records must be available to employees during their
employment
✔✔Each member of the confined space emergency rescue team must practice
emergency skills - ✔✔At least annually
✔✔Employer-approved rescue services must be informed of hazards in advance by: -
✔✔The employer
✔✔If self-evacuation of an entrant is not possible, the attendant should: - ✔✔use an
extraction device
✔✔Permit-required confined space work is potentially hazardous - ✔✔always
✔✔Trench shields prevent cave ins - ✔✔false
✔✔The depth at which an excavation needs attention from a registered professional
engineer is: - ✔✔20 feet
✔✔All systems have a set of manufacturer's tabulated data to be used for proper design
and installation of the equipment - ✔✔True
✔✔A surface encumbrance is anything that could create a ___________ in or around a
trench. - ✔✔Hazard
✔✔Each of the following is true of underground utilities except: - ✔✔They must always
be removed
✔✔When using ladders for egress from a trench, they must - ✔✔Be within 25 feet of all
workers
Extend 3 feet above the cut
Have a 4 to 1 angle
✔✔In trenches, each of the following is true of accumulating water hazards except: -
✔✔Special supports or shields are not allowed
✔✔Being dangerously close to a falling load is: - ✔✔Not allowed
✔✔Which of the following statements is true about trenches and excavations? - ✔✔A
trench is never wider than 15 feet
An excavation is a cavity in the earth's surface by cutting/removing earth
✔✔Aluminum hydraulic shores must be pumped to a minimum of ____ of pressure but
more is recommended - ✔✔750 lbs
,✔✔Air monitoring is required in confined spaces, including trenches, because they
present hazards such as: - ✔✔Methane gas and flammable vapors
Carbon monoxide and various chemicals
✔✔Which of the following are common test methods used for soil classification? -
✔✔Ribbon and thumb penetration
dry strength and sedimentation
✔✔This lateral cave in pressure can be as much as ___ pounds per square foot -
✔✔800
✔✔As soon as a trench or excavation reaches a depth of __ or more, fall protection
measures must be implemented - ✔✔6 feet
✔✔Which of the following is true about confined spaces? - ✔✔Large enough to perform
work with restricted entry or exit
Not designed for ongoing occupancy
✔✔What might be found in a permit space? - ✔✔Hazardous atmosphere
Engulfment hazard
obstacles that interfere with any attempt to exit the space
✔✔Permit-required confined space will often have which of the following hazards? -
✔✔Hazardous atmosphere
✔✔Are confined space accidents mostly preventable? - ✔✔Yes
✔✔A permit required confined space may have an interior shape that could - ✔✔Trap or
asphyxiate
✔✔The term IDLH refers to - ✔✔Immediately dangerous to life or health values
Exposure that may cause irreversible, adverse health effects
dangerous atmosphere that may impair an individuals ability to escape
✔✔An example of a confined space structure in which someone can become trapped or
suffocate is: - ✔✔A storage tank with inward sloping walls
✔✔A confined space permit is - ✔✔An authorization and a checklist to identify hazards
and precautions
✔✔A confined space entry permit is: - ✔✔Mandated by OSHA
A safety tool
A checklist that identifies hazards with protective measures
,✔✔Which of the following are responsibilities of the employer with regard to confined
spaces? - ✔✔Ensure that a competent person identifies all confined spaces in which
one or more of the employees it directs may work
Inform exposed employees by posting danger signs or by any other equally effective
means
Prevent entry of unauthorized persons
Maintain a written confined space entry program
✔✔When must a written permit space program be made available to employees or their
representatives? - ✔✔Prior to operations
✔✔An employer must ensure the following for entry into a permit space - ✔✔safe
methods for entering and exiting space
✔✔What is an employer required to do when a permit space is present at a worksite,
even though employees do not need to enter space? - ✔✔Take steps to prevent
employees from entering space
✔✔What are considered safe work practices for confined entry? - ✔✔Identify hazards
on the CSE permit
Test for flammability and potential for explosion
Check safety data sheets
Prevent entry of unauthorized persons
✔✔What is required before entering a confined space? - ✔✔Atmospheric testing
✔✔What are considered hazard control systems for confined spaces? - ✔✔Isolation
Lockout and tagout
Blanking
bleeding
ventilate with fresh air
flush with liquid
Purge the space with inert gas
✔✔What does blanking mean? - ✔✔Disconnecting or capping lines that may empty into
the permit space
✔✔Bleeding, ventilation, and flushing are all examples of: - ✔✔Confined space hazard
controls
✔✔Controlling and removing potential hazards from entering a confined space is a
control technique known as: - ✔✔Isolation
, ✔✔Controls for a confined space physical hazard may include blanking, double block
and bleed, and - ✔✔lock and tag out
✔✔Each person serving as an attendant must be listed on the confined space permit -
✔✔True
✔✔An employer must provide the opportunity for anyone affected by a permit space to
observe monitoring of the permit space - ✔✔true
✔✔The two principal types of respirators are: - ✔✔Supplied air and air purifying
✔✔CSE permit equipment ipcludes equipment for: - ✔✔B. Ventilation,
personalprotection, air testing and monitoring
✔✔What do we know about the entrant and the attendant? - ✔✔Both must be trained
as part of the CSE team
Both have a vital role in the CSE program
Both must know the hazards of confined space entry
✔✔Who is apart of the CSE team? - ✔✔An entry supervisor
an entrant
an attendant
response personnel
✔✔Even though the employer is responsible for providing confined space training, the
cost of the training is paid by the employee. - ✔✔False
✔✔Which of the following is an employer responsibility with regard to training
employees? - ✔✔Training records must be available to employees during their
employment
✔✔Each member of the confined space emergency rescue team must practice
emergency skills - ✔✔At least annually
✔✔Employer-approved rescue services must be informed of hazards in advance by: -
✔✔The employer
✔✔If self-evacuation of an entrant is not possible, the attendant should: - ✔✔use an
extraction device
✔✔Permit-required confined space work is potentially hazardous - ✔✔always
