IDRL 308 OCCUPATIONAL HEALTH AND
SAFETY FINAL EXAM TIPS COMPLETE
SOLUTION FINAL EXAMINATION TEST
PAPER 2026 FULL ANSWERS GRADED A+
⩥ Hazard Recognition. Answer: The systematic task of identifying all
hazards present or potentially present in a workplace. It's always the first
step of any HRAC process.
⩥ Hazard Assessment. Answer: Workers and employers which of the
hazards needs to be addressed most urgently.
⩥ Hazard Control. Answer: The process used to establish preventative
and corrective measures implemented to eliminate or mitigate the effect
of the hazard.
⩥ Hierarchy of Controls. Answer: A system used to control workplace
risks. It's a step by step approach to eliminating or reducing risks
ranking from most effective to least.
⩥ Five Controls in Hierarchy of Controls. Answer: 1. Elimination
2. Substitution
3. Engineering Controls
,4. Administrative Controls
5. Personal Protective Equipment (PPE)
⩥ Elimination. Answer: Removes the hazard from the worksite
⩥ Substitution. Answer: Replaces something that produces a hazard with
something that does not.
⩥ Engineering Controls. Answer: Modifications to the workplace,
equipment, materials or work processes that reduces workers exposure
to hazards.
⩥ Administrative Controls. Answer: Changes to work process, policies,
training or rules designed to reduce exposure to hazards.
⩥ Personal Protective Equipment (PPE). Answer: Equipment worn by
workers designed to protect them if they come in contact with hazard.
⩥ Physical Hazards. Answer: Noise and vibration, temperature, radiation
and ergonomics.
⩥ When is noise harmful to workers?. Answer: Three characteristics
affect when noise becomes a hazard: frequency, duration and loudness.
Noise can lead to permanent hearing loss.
,⩥ When does vibration become harmful to workers?. Answer: When a
worker comes into contact with vibration causing energy to be
transferred to the worker. There are two common types of vibration that
are important to
OHS: whole body vibration and segmental vibration.
⩥ Whole Body Vibration. Answer: When a workers entire body
experiences shaking due to vibration. Can lead to lower spine damage or
even internal organ damage.
⩥ Segmental Vibration. Answer: When only parts of the body are
affected by vibration. Most common and concerning form is hand-arm
vibration.
⩥ When does temperature become a hazard?. Answer: When
temperature extremes prevent our bodies from properly self regulating
we experience thermal stress. Temperatures that are too high can cause
heat stroke and temperatures that are too low can cause hypothermia.
⩥ Radiation. Answer: Any energy emitted from a source including heat,
light, x-rays, microwaves and more. It is categorized in two forms:
ionizing and non-ionizing.
, ⩥ Ionizing Radiation. Answer: Radiation with enough strength to
remove electrons from a molecule as it passes through. The electron loss
causes the molecule to become positively charged (ion) Ex/ X-rays,
gamma rays.
⩥ Non-ionizing Radiation. Answer: Does not ionize molecules but can
have other affects. Ex/ microwaves, ultraviolet, radio waves.
⩥ Ergonomics. Answer: "Fit the job to the worker, not the worker to the
job" Ergonomics seeks to ensure that the design of the work matches the
anatomical, physiological and psychological needs of the worker. A
common health affect of ergonomics is repetitive strain injuries (RSI).
⩥ Noise and vibration controls. Answer: Most effective: elimination,
substitution or engineering controls. Most common yet least effective
are time restrictions or PPE.
⩥ Temperature Controls. Answer: Most effective control is limiting
exposure to hazardous temperatures. Other controls include relocating
work, installing heating/cooling devices, work-rest cycles, preventing
working alone and minimizing manual effort.
⩥ Radiation Controls. Answer: Most effective: engineering controls.
Other controls include PPE and substitution.
SAFETY FINAL EXAM TIPS COMPLETE
SOLUTION FINAL EXAMINATION TEST
PAPER 2026 FULL ANSWERS GRADED A+
⩥ Hazard Recognition. Answer: The systematic task of identifying all
hazards present or potentially present in a workplace. It's always the first
step of any HRAC process.
⩥ Hazard Assessment. Answer: Workers and employers which of the
hazards needs to be addressed most urgently.
⩥ Hazard Control. Answer: The process used to establish preventative
and corrective measures implemented to eliminate or mitigate the effect
of the hazard.
⩥ Hierarchy of Controls. Answer: A system used to control workplace
risks. It's a step by step approach to eliminating or reducing risks
ranking from most effective to least.
⩥ Five Controls in Hierarchy of Controls. Answer: 1. Elimination
2. Substitution
3. Engineering Controls
,4. Administrative Controls
5. Personal Protective Equipment (PPE)
⩥ Elimination. Answer: Removes the hazard from the worksite
⩥ Substitution. Answer: Replaces something that produces a hazard with
something that does not.
⩥ Engineering Controls. Answer: Modifications to the workplace,
equipment, materials or work processes that reduces workers exposure
to hazards.
⩥ Administrative Controls. Answer: Changes to work process, policies,
training or rules designed to reduce exposure to hazards.
⩥ Personal Protective Equipment (PPE). Answer: Equipment worn by
workers designed to protect them if they come in contact with hazard.
⩥ Physical Hazards. Answer: Noise and vibration, temperature, radiation
and ergonomics.
⩥ When is noise harmful to workers?. Answer: Three characteristics
affect when noise becomes a hazard: frequency, duration and loudness.
Noise can lead to permanent hearing loss.
,⩥ When does vibration become harmful to workers?. Answer: When a
worker comes into contact with vibration causing energy to be
transferred to the worker. There are two common types of vibration that
are important to
OHS: whole body vibration and segmental vibration.
⩥ Whole Body Vibration. Answer: When a workers entire body
experiences shaking due to vibration. Can lead to lower spine damage or
even internal organ damage.
⩥ Segmental Vibration. Answer: When only parts of the body are
affected by vibration. Most common and concerning form is hand-arm
vibration.
⩥ When does temperature become a hazard?. Answer: When
temperature extremes prevent our bodies from properly self regulating
we experience thermal stress. Temperatures that are too high can cause
heat stroke and temperatures that are too low can cause hypothermia.
⩥ Radiation. Answer: Any energy emitted from a source including heat,
light, x-rays, microwaves and more. It is categorized in two forms:
ionizing and non-ionizing.
, ⩥ Ionizing Radiation. Answer: Radiation with enough strength to
remove electrons from a molecule as it passes through. The electron loss
causes the molecule to become positively charged (ion) Ex/ X-rays,
gamma rays.
⩥ Non-ionizing Radiation. Answer: Does not ionize molecules but can
have other affects. Ex/ microwaves, ultraviolet, radio waves.
⩥ Ergonomics. Answer: "Fit the job to the worker, not the worker to the
job" Ergonomics seeks to ensure that the design of the work matches the
anatomical, physiological and psychological needs of the worker. A
common health affect of ergonomics is repetitive strain injuries (RSI).
⩥ Noise and vibration controls. Answer: Most effective: elimination,
substitution or engineering controls. Most common yet least effective
are time restrictions or PPE.
⩥ Temperature Controls. Answer: Most effective control is limiting
exposure to hazardous temperatures. Other controls include relocating
work, installing heating/cooling devices, work-rest cycles, preventing
working alone and minimizing manual effort.
⩥ Radiation Controls. Answer: Most effective: engineering controls.
Other controls include PPE and substitution.
