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Workplace Hazard Analysis
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Workplace Hazard Analysis
Workplace Hazard Analysis
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1
Question
What are the six classifications of hazards according to the text?
Answer
Mechanical, Electrical, Biological, Chemical, Ergonomics, Psychological.
2
Question
What is the main purpose of hazard identification in the workplace?
Answer
To look for hazards in advance as part of a risk management plan to prevent potential hazards.
3
Question
List the key steps involved in risk assessment.
Answer
Identify hazards; decide who might be harmed and how; evaluate the risk and check what is done to prevent recurrence; create records of findings; review and revise assessment if needed.
4
Question
Describe the hierarchy of controls used to manage hazards.
Answer
Elimination (remove hazard), Substitution (replace with less hazardous option), Engineering Controls (physical changes to reduce exposure), Administrative Controls (improvements in work methods), Personal Protective Equipment (PPE).
5
Question
What distinguishes a safety hazard from a health hazard?
Answer
Safety hazards increase the risk and can cause immediate effects, while health hazards affect health with delayed effects.
6
Question
Define the terms 'reservoir' and 'portal of exit' in biological hazards context.
Answer
Reservoir: source or host where a pathogen lives, grows, and multiplies; Portal of Exit: route by which infectious microorganisms leave the reservoir.
7
Question
What forms do chemical hazards take and which is considered most hazardous?
Answer
Solid (hazardous if airborne as dust), Liquid (most hazardous; can harm skin or enter body), Gas (flammable, explosive, toxic), Dust, Mist, Vapor, and Fume.
8
Question
Explain acute toxicity and chronic toxicity in relation to chemical hazards.
Answer
Acute toxicity: adverse effects from a single or short-term exposure; Chronic toxicity: adverse effects developing from long-term exposure.
9
Question
How does illumination intensity vary for different workplace areas, according to the text?
Answer
20 lux for yards and roadways, 50 lux for passageways and warehouses, 100 lux for boiler rooms; emergency lights should provide at least 5 lux for 1 hour.
10
Question
What are common ergonomic disorders caused by workplace conditions?
Answer
Tendon disorders (from repeated rubbing), nerve disorders (from exposure to sharp edges), neurovascular disorders (from vibration and low temperature).
11
Question
What are the main elements required for a fire to occur?
Answer
Heat, Fuel, and Oxygen (Air).
12
Question
Classify the types of fires listed and give an example for each class if possible.
Answer
Class A - Ordinary combustibles; Class B - Flammable liquids; Class C - Live electrical equipment; Class D - Combustible metals; Class K - Commercial cooking equipment.
13
Question
What is the P.A.S.S. method for using fire extinguishers?
Answer
Pull the locking pin, Aim at the base of the fire, Squeeze and hold the discharge lever, Sweep from side to side.
14
Question
Identify four main types of electrical injuries described in the text.
Answer
Electrical shock, electrocution, burns, and falls.
15
Question
Which factors determine the severity of an electrical shock?
Answer
Path of current through the body, amount of current, and duration of current flow.
16
Question
Define unsafe act and unsafe condition in the context of workplace accidents.
Answer
Unsafe Act: human actions deviating from safety procedures or rules; Unsafe Condition: physical or chemical hazards in environment or materials that can cause injury or damage.
17
Question
What is the purpose of worksite hazard analysis (WHA) and job hazard analysis (JHA)?
Answer
WHA identifies existing and potential hazards at the worksite; JHA analyzes job tasks to identify hazards before they occur.
18
Question
Describe the roles of the Fire Marshal (FM) and Assistant Brigade Marshal (ABM) during emergencies.
Answer
FM supervises and monitors emergencies, sets up command post, keeps building plans, and organizes safety drills; ABM assists the FM and takes charge in FM’s absence.
19
Question
Explain the stages of fire development from ignition to decay.
Answer
Incipient/Ignition (fire starts), Growth (temperature and smoke rise), Flashover (rapid fire spread), Fully Developed (maximum heat, full combustion), Decay (fire intensity decreases due to fuel loss).
20
Question
What are the three main methods to extinguish a fire?
Answer
Smothering (removing oxygen), Cooling (removing heat), and Starvation (removing fuel).