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The mission of the Occupational Safety and Health Administration (OSHA) is: - ✔✔To 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: - ✔✔Your 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? - ✔✔-- 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: -
✔✔Workplace and engineering controls
The three main scaffold types are aerial lifts, supported scaffolds and: - ✔✔suspended 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: - ✔✔-- 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: - ✔✔Protect themselves by wearing proper PPE
, OSHA defines an excavation as: - ✔✔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: - ✔✔-- 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: - ✔✔wrecking balls and jackhammers
OSHA's electrical standards are based on: - ✔✔the NEC
What are the four main types of electrical injuries? - ✔✔Electrocution, electric shock, burns, indirect
(e.g., a fall from a ladder)
A shock's severity depends on: - ✔✔-- 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: - ✔✔On
the hands, from direct contact with current
Hot wires, ungrounded wires that can cause a shock if you touch them, are usually: - ✔✔black or red
More than 50 percent of electrocutions are caused by a worker coming in direct contact with: -
✔✔energized power lines
The OSHA standard requires flexible cords to be rated for: - ✔✔Hard or extra hard usage