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WorksheetsWorkplace Hazard Awareness Quiz
Total questions: 50
Worksheet time: 25mins
What is a hazard?
A harmless condition
A chemical or physical condition with potential to cause an accident
A guaranteed cause of injury
A type of PPE
Risk refers to:
The guarantee of injury
The chance a hazard will cause harm
The elimination of a hazard
The safety level of an activity
Which of the following is an example of a workplace hazard?
Supervisor instructions
Wet floor
Eating lunch
Rest breaks
Preliminary Hazard List (PHL) is conducted during:
Final design stage
After an accident
Conceptual or preliminary design
Machine installation
The purpose of safety analysis is to:
Increase company profits
Identify hazards and determine causes
Reduce worker salary
Replace equipment
A What-If Analysis identifies hazards by:
Mathematical equations
Asking “What if…?” questions
Trial and error
Workplace inspection only
Which is NOT a source of hazard?
Extreme temperatures
Rolling objects
Light radiation
Healthy diet
A PHA helps:
Increase employee rest
Identify hazards early and reduce design surprises
Remove electrical hazards
Prevent all accidents
A limitation of PHA is:
It always finds all hazards
It requires no expertise
It cannot evaluate combined effects of failures
It is only used after accidents
A rotating shaft may cause:
Bright lighting
Clothing entanglement
Noise only
Dust formation
Shearing hazards occur when:
Metal is pushed using bare hands
Power is applied to trim material
Two materials are painted together
A motor overheats
Point of operation hazards include:
Walking areas
Locations where cutting, bending, or shaping occurs
Cafeteria space
Administrative offices
A guard must:
Allow easy access to dangerous areas
Prevent human contact with dangerous parts
Be removable at any time
Be made only of metal
The purpose of lockout/tagout is:
Increase machine speed
Prevent unexpected machine activation
Improve office safety
Keep workers away from tools
In machine safeguarding, guards are preferred for:
Office tasks
Power transmission components
Computer processing
Administrative work
Double insulation is used in:
Shoes
Hand-held appliances
Food storage containers
Computer keyboards
The symbol for double insulation appears on:
Batteries
Plastic-cased appliances (e.g., hair dryers)
Steel beams
Engines only
A GFCI works by detecting:
Air pressure
Water flow
Current leakage to ground
Vibrations
A fuse functions by:
Storing electricity
Melting when current is too high
Increasing voltage
Reducing shock resistance
An arc flash is described as:
Slow heat release
Sudden release of electrical energy through the air
Rusting of metal surfaces
A form of battery leakage
Electrical shock occurs when:
Current flows into the ground
The body becomes part of the electrical circuit
A motor is overloaded
A fuse blows
The “let-go” current refers to:
Voltage where machines shut down
Current where a person can no longer release an energized object
Current that trips circuit breakers
A fuse rating
Which exposure level often causes ventricular fibrillation?
1 mA
6 mA
30–75 mA
75–300 mA
Radiation sickness symptoms include:
Headache only
Bruising, vomiting blood, hair loss
Improved vision
Higher body strength
Ionizing radiation includes:
Microwaves
Infrared
Gamma rays
Radio waves
Non-ionizing radiation includes:
Alpha particles
Neutrons
Ultraviolet and microwaves
X-rays
Which is a detection tool for radiation?
Circuit breaker
Ion chamber
GFCI
Switch fuse
Time, distance, and shielding are principles of:
Mechanical maintenance
Electrical safety
Radiation protection
Fire control
The NEC is published by:
NASA
Ministry of Health
NFPA
FDA
UL determines whether:
Food is safe
Electrical equipment is safe
Air quality is good
Training is adequate
Electrocution is defined as:
Mild shock
Fatal electrical injury
Non-dangerous contact
Mechanical hazard
A transversing motion hazard involves:
Vertical movement only
Zero moving parts
A moving part that may strike or pinch workers
Light reflection
Reciprocating motion hazard is:
Rotating shaft
Up-and-down movement trapping workers
Motionless equipment
Magnetic force
One benefit of PHA is:
Increased paperwork
Reduced design surprises
Increased machine breakdown
Elimination of safety rules
Preliminary Hazard Analysis is performed:
After machine failure
In earliest stages of design
After installation
During worker training only
Sources of mechanical hazards include:
Quiet offices
Fast-moving machine parts
Stationary desks
Whiteboards
A fixed guard:
Moves automatically
Is permanently attached to the machine
Requires no installation
Increases hazard exposure
Safeguards must NOT:
Allow safe lubrication
Prevent objects from entering moving parts
Create new hazards
Fit securely
OSHA standards for electrical hazards are found in:
29 CFR 1910 Subpart S
ISO 9001
CDC guidelines
FDA Code 51
Example of an energy source hazard:
Books
Electricity
Water bottle
Soft drinks
Ionization refers to:
Melting metal
Removing or adding electrons to atoms
Heating objects
Expanding gases
A radiation label provides information on:
Worker salary
Radioactive material quantity and type
Fire exits
Training schedules
Overloading an electrical system can cause:
Better energy flow
Fire and overheating
Reduced hazard
Increased insulation
Which device is used to detect wiring faults?
Circuit tester
Scintillation counter
Ion chamber
Lockout padlock
A machine hazard caused by moving belts and chains is:
Rotating hazard
Chemical hazard
Environmental hazard
Biological hazard
Hard rock mining may cause:
Flu
Silicosis
Skin irritation only
Lung strengthening
An example of a chemical hazard:
Asbestos
Knife
Wet floor
Welding sparks
A What-If analysis recommendation for overheating reactors is:
Ignore temperature
Increase cooling water
Reduce alarms
Remove safety valve
Radiation is used in:
Cooking only
Power generation, medicine, laboratories
Sports
Transport
To respond to a freeze-effect shock, you should:
Pull the victim directly
Increase voltage
Shut off power immediately
Pour water on wires
