OSHA 30 PRACTICE EXAM
QUESTIONS AND DETAILED
SOLUTIONS 2026
▶ If the use of a power tool can result in flying sparks, metal shavings,
wood chips, splashes, or other debris, workers should: Answer: Protect
themselves by wearing proper PPE
▶ OSHA defines an excavation as: Answer: Any man-made cavity,
depression, trench or cut in the earth's surface formed by earth removal
▶ A training program to teach proper lifting techniques should cover:
Answer: -- Knowledge of the basic anatomy of the spine, muscles, and
joints of the trunk
-- The use of safe lifting postures and timing
▶ Mechanical demolition refers to demolition using equipment like:
Answer: wrecking balls and jackhammers
▶ OSHA's electrical standards are based on: Answer: the NEC
▶ What are the four main types of electrical injuries? Answer:
Electrocution, electric shock, burns, indirect (e.g., a fall from a ladder)
▶ A shock's severity depends on: Answer: -- Length of exposure to
electricity
-- The amount of current and its frequency
-- The current's path
▶ Electrical burns are the most serious of the three major types of burns,
and most often occur: Answer: On the hands, from direct contact with
current
▶ Hot wires, ungrounded wires that can cause a shock if you touch them,
are usually: Answer: black or red
, ▶ More than 50 percent of electrocutions are caused by a worker coming in
direct contact with: Answer: energized power lines
▶ The OSHA standard requires flexible cords to be rated for: Answer:
Hard or extra hard usage
▶ What is the most frequent violation of OSHA electrical standards?
Answer: improper grounding of circuitry and equipment
▶ The three elements of a basic program for electrical safety are: Answer:
recognize, evaluate and control
▶ All portable electric tools that are damaged shall be: Answer: Removed
and tagged "Do Not Use"
▶ If you have a three-prong plug and a two-hole receptacle, it is acceptable
to: Answer: Use an adapter with an adapter wire connected to known
ground
▶ All hazards involved in the use of power tools can be prevented by
following five basic safety rules: Keep all tools in good condition with
regular maintenance; examine each tool for damage before use; operate
according to the manufacturer's instructions; provide and use the proper
protective equipment; and: Answer: use the right tool for the job
▶ Live parts of electric equipment operating at 50 volts or more must be:
Answer: guarded against electrical contact
▶ While any employee is exposed to contact with parts of electric
equipment or circuits that have been de-energized, the circuits energizing
the parts shall be: Answer: Locked out or tagged out or both
▶ Low voltage does not mean low hazard. Answer: true
▶ The two best means of avoiding electrical shock or injury when working
with power tools are: Answer: Insulation and grounding
▶ The majority of today's power line accidents occur because: Answer: Of
failure to maintain proper work distances
QUESTIONS AND DETAILED
SOLUTIONS 2026
▶ If the use of a power tool can result in flying sparks, metal shavings,
wood chips, splashes, or other debris, workers should: Answer: Protect
themselves by wearing proper PPE
▶ OSHA defines an excavation as: Answer: Any man-made cavity,
depression, trench or cut in the earth's surface formed by earth removal
▶ A training program to teach proper lifting techniques should cover:
Answer: -- Knowledge of the basic anatomy of the spine, muscles, and
joints of the trunk
-- The use of safe lifting postures and timing
▶ Mechanical demolition refers to demolition using equipment like:
Answer: wrecking balls and jackhammers
▶ OSHA's electrical standards are based on: Answer: the NEC
▶ What are the four main types of electrical injuries? Answer:
Electrocution, electric shock, burns, indirect (e.g., a fall from a ladder)
▶ A shock's severity depends on: Answer: -- Length of exposure to
electricity
-- The amount of current and its frequency
-- The current's path
▶ Electrical burns are the most serious of the three major types of burns,
and most often occur: Answer: On the hands, from direct contact with
current
▶ Hot wires, ungrounded wires that can cause a shock if you touch them,
are usually: Answer: black or red
, ▶ More than 50 percent of electrocutions are caused by a worker coming in
direct contact with: Answer: energized power lines
▶ The OSHA standard requires flexible cords to be rated for: Answer:
Hard or extra hard usage
▶ What is the most frequent violation of OSHA electrical standards?
Answer: improper grounding of circuitry and equipment
▶ The three elements of a basic program for electrical safety are: Answer:
recognize, evaluate and control
▶ All portable electric tools that are damaged shall be: Answer: Removed
and tagged "Do Not Use"
▶ If you have a three-prong plug and a two-hole receptacle, it is acceptable
to: Answer: Use an adapter with an adapter wire connected to known
ground
▶ All hazards involved in the use of power tools can be prevented by
following five basic safety rules: Keep all tools in good condition with
regular maintenance; examine each tool for damage before use; operate
according to the manufacturer's instructions; provide and use the proper
protective equipment; and: Answer: use the right tool for the job
▶ Live parts of electric equipment operating at 50 volts or more must be:
Answer: guarded against electrical contact
▶ While any employee is exposed to contact with parts of electric
equipment or circuits that have been de-energized, the circuits energizing
the parts shall be: Answer: Locked out or tagged out or both
▶ Low voltage does not mean low hazard. Answer: true
▶ The two best means of avoiding electrical shock or injury when working
with power tools are: Answer: Insulation and grounding
▶ The majority of today's power line accidents occur because: Answer: Of
failure to maintain proper work distances
