STSC Practice 2026/2027 Exam verified with correct
answers/instant pdf
What minimum PPE is required for a worker using a jackhammer with a spade to
remove asphalt? -correct answer >>>Hearing, eye, head and foot protection
Minimally, _____ designated person(s) shall be on duty above ground whenever any
employee is working underground and shall be responsible for securing immediate aid,
keeping an accurate count of employees underground in case of emergency. -correct
answer >>>One
A medical questionnaire required when safety workers place an employee in respiratory
protection must be evaluated by whom? -correct answer >>>A licensed health care
professional
In construction each employee on a walking/ working surface (horizontal and vertical
surface) with an unprotected side or edge which is _____ feet or move above a lower
level shall be protected from falling by the use of guardrail systems, safety net systems,
or personal fall arrest systems. -correct answer >>>6
A crew member deliberately violates a safety procedure. What should be done? -correct
answer >>>Stop work, write formal complaint and explain
OSHA requires that each employee on a scaffold more than _____ feet above a lower
level shall be provided with fall protection with fall protection to prevent from falling to
that lower level. -correct answer >>>10
Professional ethics refers to: -correct answer >>>A set of principles and standards that
guide the actions of professionals that are often referenced in civil or criminal cases
involving professional conduct
When working on a scaffold 50 feet high who must approve the scaffold for use? -
correct answer >>>The Competent person
Both large and small businesses are required to report certain serious work-related
incidents to the nearest OSHA Area Office. What mishaps require reporting within 8
hours? -correct answer >>>The fatality of one or more employees, as a result of a work-
related incident
A guardrail systems' major components include? -correct answer >>>All of the above
(Top rail, mid rail, toe boards, screens)
Safety professionals perform accident investigations primarily to: -correct answer
>>>Determine causal conditions
,Accident analysis is primarily used as a(n)? -correct answer >>>Indicator for problem
areas
For injury accident analysis, information sources include all of the following expect? -
correct answer >>>Insurance rate table
For construction, electrical power tools and cords must: -correct answer >>>Make use
of ground fault circuit interrupters or be part of an assured equipment grounding
conductor program
If a supervisor is given authority by the General Manager to stop operations on a
construction site whenever he or she observes an imminent danger situation. Which of
the following correctly identifies that authority? -correct answer >>>Functional authority
As a certified Safety Trained Supervisor, you are expected to -correct answer >>>Seek
methods to improve personal knowledge and understanding of methods, techniques
and practices for workers, protection
Arrange the following hazard control steps in the most appropriate sequence: -correct
answer >>>2 (engineer), 1 (guard), 3 (educate)
Which action is preferred when dealing with minor infractions of work safety rules? -
correct answer >>>Oral reprimand
System safety analysis can be applied to which of the following? -correct answer
>>>Any system that has interacting components
What should a supervisor do when a crew must walk across an area with open floor
holes to get to their work area? -correct answer >>>Have the floor holes covered and
inform crew of load surface restrictions
The strongest motivator, according to the Contemporary Motivation Theory is: -correct
answer >>>Recognition of achievement
Management has increased work hours and is pushing for more productivity. As STS,
you are concerned about some of the safety risks associated with this production
schedule. You should: -correct answer >>>Inform/ communicate increased hazards due
to increased production and verify that risk is acceptable
The best evaluation of tasks descriptor involving steps, hazards and solutions is? -
correct answer >>>Job Safety Analysis (JSA)
The major cause of serious construction injuries are? -correct answer >>>Falls
, Various methods of securing line accountability for safety are widely accepted within the
safety community. Which techniques will have long lasting influence on the line
manager or supervisor? -correct answer >>>All of the above
What are the two areas of accident costs? -correct answer >>>Direct and Indirect
Who typically conducts most minor incident investigations? -correct answer
>>>Supervisor
Who should investigate a serious or fatal accident in an active mishap prevention
program? -correct answer >>>A senior manager official
Often several accident investigators will be at the scene of an accident at the same time
due to varying reasons for gathering information. Which of the following is the least
important task with respect to the STSs accident investigation responsibilities? -correct
answer >>>Getting to the scene before anybody else. Arriving first on the scene
While interviewing witnesses to an accident or participants in the event, investigators
often find themselves talking to a hostile and very defensive people. Which of the
following methods would most likely result in an honest and truthful statement from
these interviewees? -correct answer >>>Tell then the information will only be used for
accident prevention purposes and no disciplinary actions will result from the
investigation
Throughout accident investigations, the interviewing of witnesses is often required to
determine facts relative to the event. Which of the following choices offers the best
place to conduct interviews for safety investigations? -correct answer >>>Privately in a
conference room
The best descriptor of the legal premise of "chain of custody" is? -correct answer
>>>Documentation of possession
Exactly when should an accident investigation begin? -correct answer >>>As soon as
possible, realizing that protection of the injured and prevention of a second accident will
take precedence
The primary reasons for accidents are? -correct answer >>>Combinations of factors
While reviewing the plans for a sewer line project to be performed by a sub-contractor,
the investigator is puzzled by the definition of a "trench excavation" used throughout the
document. Which of the following is the best definition of an OSHA trench excavation? -
correct answer >>>A narrow excavation where the depth is greater than the width, but
not greater than 15 feet
While reviewing preliminary plans for construction of a radio transmitting site located at
9,000 feet elevation, workers travel from sea level to the site each day and return after
answers/instant pdf
What minimum PPE is required for a worker using a jackhammer with a spade to
remove asphalt? -correct answer >>>Hearing, eye, head and foot protection
Minimally, _____ designated person(s) shall be on duty above ground whenever any
employee is working underground and shall be responsible for securing immediate aid,
keeping an accurate count of employees underground in case of emergency. -correct
answer >>>One
A medical questionnaire required when safety workers place an employee in respiratory
protection must be evaluated by whom? -correct answer >>>A licensed health care
professional
In construction each employee on a walking/ working surface (horizontal and vertical
surface) with an unprotected side or edge which is _____ feet or move above a lower
level shall be protected from falling by the use of guardrail systems, safety net systems,
or personal fall arrest systems. -correct answer >>>6
A crew member deliberately violates a safety procedure. What should be done? -correct
answer >>>Stop work, write formal complaint and explain
OSHA requires that each employee on a scaffold more than _____ feet above a lower
level shall be provided with fall protection with fall protection to prevent from falling to
that lower level. -correct answer >>>10
Professional ethics refers to: -correct answer >>>A set of principles and standards that
guide the actions of professionals that are often referenced in civil or criminal cases
involving professional conduct
When working on a scaffold 50 feet high who must approve the scaffold for use? -
correct answer >>>The Competent person
Both large and small businesses are required to report certain serious work-related
incidents to the nearest OSHA Area Office. What mishaps require reporting within 8
hours? -correct answer >>>The fatality of one or more employees, as a result of a work-
related incident
A guardrail systems' major components include? -correct answer >>>All of the above
(Top rail, mid rail, toe boards, screens)
Safety professionals perform accident investigations primarily to: -correct answer
>>>Determine causal conditions
,Accident analysis is primarily used as a(n)? -correct answer >>>Indicator for problem
areas
For injury accident analysis, information sources include all of the following expect? -
correct answer >>>Insurance rate table
For construction, electrical power tools and cords must: -correct answer >>>Make use
of ground fault circuit interrupters or be part of an assured equipment grounding
conductor program
If a supervisor is given authority by the General Manager to stop operations on a
construction site whenever he or she observes an imminent danger situation. Which of
the following correctly identifies that authority? -correct answer >>>Functional authority
As a certified Safety Trained Supervisor, you are expected to -correct answer >>>Seek
methods to improve personal knowledge and understanding of methods, techniques
and practices for workers, protection
Arrange the following hazard control steps in the most appropriate sequence: -correct
answer >>>2 (engineer), 1 (guard), 3 (educate)
Which action is preferred when dealing with minor infractions of work safety rules? -
correct answer >>>Oral reprimand
System safety analysis can be applied to which of the following? -correct answer
>>>Any system that has interacting components
What should a supervisor do when a crew must walk across an area with open floor
holes to get to their work area? -correct answer >>>Have the floor holes covered and
inform crew of load surface restrictions
The strongest motivator, according to the Contemporary Motivation Theory is: -correct
answer >>>Recognition of achievement
Management has increased work hours and is pushing for more productivity. As STS,
you are concerned about some of the safety risks associated with this production
schedule. You should: -correct answer >>>Inform/ communicate increased hazards due
to increased production and verify that risk is acceptable
The best evaluation of tasks descriptor involving steps, hazards and solutions is? -
correct answer >>>Job Safety Analysis (JSA)
The major cause of serious construction injuries are? -correct answer >>>Falls
, Various methods of securing line accountability for safety are widely accepted within the
safety community. Which techniques will have long lasting influence on the line
manager or supervisor? -correct answer >>>All of the above
What are the two areas of accident costs? -correct answer >>>Direct and Indirect
Who typically conducts most minor incident investigations? -correct answer
>>>Supervisor
Who should investigate a serious or fatal accident in an active mishap prevention
program? -correct answer >>>A senior manager official
Often several accident investigators will be at the scene of an accident at the same time
due to varying reasons for gathering information. Which of the following is the least
important task with respect to the STSs accident investigation responsibilities? -correct
answer >>>Getting to the scene before anybody else. Arriving first on the scene
While interviewing witnesses to an accident or participants in the event, investigators
often find themselves talking to a hostile and very defensive people. Which of the
following methods would most likely result in an honest and truthful statement from
these interviewees? -correct answer >>>Tell then the information will only be used for
accident prevention purposes and no disciplinary actions will result from the
investigation
Throughout accident investigations, the interviewing of witnesses is often required to
determine facts relative to the event. Which of the following choices offers the best
place to conduct interviews for safety investigations? -correct answer >>>Privately in a
conference room
The best descriptor of the legal premise of "chain of custody" is? -correct answer
>>>Documentation of possession
Exactly when should an accident investigation begin? -correct answer >>>As soon as
possible, realizing that protection of the injured and prevention of a second accident will
take precedence
The primary reasons for accidents are? -correct answer >>>Combinations of factors
While reviewing the plans for a sewer line project to be performed by a sub-contractor,
the investigator is puzzled by the definition of a "trench excavation" used throughout the
document. Which of the following is the best definition of an OSHA trench excavation? -
correct answer >>>A narrow excavation where the depth is greater than the width, but
not greater than 15 feet
While reviewing preliminary plans for construction of a radio transmitting site located at
9,000 feet elevation, workers travel from sea level to the site each day and return after
