The mission of the Occupational Safety and Health Administration (OSHA) is: - AnswersTo send
every worker home whole and healthy every day
Electricity travels in closed circuits, and its normal route is through a conductor. Electric shock
occurs when: - AnswersYour body becomes part of the circuit
Workers need to take which of the following common-sense steps to protect themselves from
falls through skylights and roof and floor openings? - Answers-- Never sit on, lean against, or
step on a skylight lens or any covering placed over a hole in a roof or floor
-- Guard or securely cover all holes created or uncovered before leaving a work area
-- Always use a PFAS when working over an unguarded or uncovered opening more than six feet
above a lower level
The two steps for avoiding hazards that are always taken before the need for PPE is considered
are: - AnswersWorkplace and engineering controls
The three main scaffold types are aerial lifts, supported scaffolds and: - Answerssuspended
scaffolds
Because using cranes or derricks to hoist personnel poses a serious risk to the employees
being lifted, any cranes and derricks that hoist personnel must: - Answers-- Be placed on a firm
foundation and be uniformly level within 1 percent of level grade
-- Move the personnel platform slowly and cautiously and have rotation-resistant rope with a
safety factor of 10
-- Have all brakes and locking devices set when the occupied personnel platform is in stationary
position
If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or
other debris, workers should: - AnswersProtect themselves by wearing proper PPE
OSHA defines an excavation as: - AnswersAny 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: - Answers-- 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: - Answerswrecking balls and
jackhammers
, OSHA's electrical standards are based on: - Answersthe NEC
What are the four main types of electrical injuries? - AnswersElectrocution, electric shock, burns,
indirect (e.g., a fall from a ladder)
A shock's severity depends on: - Answers-- 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: -
AnswersOn the hands, from direct contact with current
Hot wires, ungrounded wires that can cause a shock if you touch them, are usually: -
Answersblack or red
More than 50 percent of electrocutions are caused by a worker coming in direct contact with: -
Answersenergized power lines
The OSHA standard requires flexible cords to be rated for: - AnswersHard or extra hard usage
What is the most frequent violation of OSHA electrical standards? - Answersimproper grounding
of circuitry and equipment
The three elements of a basic program for electrical safety are: - Answersrecognize, evaluate
and control
All portable electric tools that are damaged shall be: - AnswersRemoved and tagged "Do Not
Use"
If you have a three-prong plug and a two-hole receptacle, it is acceptable to: - AnswersUse 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: - Answersuse the right tool for the job
Live parts of electric equipment operating at 50 volts or more must be: - Answersguarded
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: - AnswersLocked out or tagged out
or both
Low voltage does not mean low hazard. - Answerstrue