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A comprehensive set of questions and answers related to osha 10 standards, covering topics such as electrical safety, fall protection, and hazard recognition. It is a valuable resource for individuals seeking to understand and comply with osha regulations in the workplace.
Typology: Exams
1 / 65
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
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
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)
exposure to electricity
of current and its frequency
A shock’s severity depends on:
Length of
The amount
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
What is the most frequent violation of OSHA electrical
standards?
improper grounding of circuitry and equipment
The three elements of a basic program for electrical safety
are:
recognize, evaluate and control
All portable electric tools that are damaged shall
be:
Removed and tagged “Do Not Use”
If you have a three-prong plug and a two-hole receptacle, it is acceptable
to:
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:
use the right tool for the job
Live parts of electric equipment operating at 50 volts or more must
be:
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: Locked out or tagged out or both
Low voltage does not mean low
hazard.
true
The two best means of avoiding electrical shock or injury when working with
power
tools are:
Insulation and grounding
The majority of today’s power line accidents occur
because:
Of failure to maintain proper work distances
A ground-fault circuit interrupter (GFCI) protects workers from shock by:
Matching the amount of current going into an electrical device against the
amount returning from the device and shutting down power if a ground fault is
detected
sets
plug and
cord
AEGCP’s are implemented on construction sites to oversee:
All cord
Cord sets and equipment connected
by
Receptacles that are not part of a building or structure
The OSHA standard mandates that any time a worker is at a height of six feet or
more, the worker is at risk and needs to be protected. Most fatalities, however,
happen when workers fall from:
Roofs
Employers must ensure that all walking and working surfaces have the structural
integrity to:
Support workers safely
Controlled access zones serve a dual purpose – they allow specially trained
individuals (such as masons) to operate without traditional fall protection within a
certain area, and:
They keep unauthorized individuals out
A system used to arrest a worker in a fall from a working level that consists of an
anchorage, connectors, a body belt or body harness, and may include a lanyard,
deceleration device, lifeline, or suitable combinations of these is called a:
Personal Fall Arrest System (PFAS)
When no other alternative fall protection has been implemented, the employer
shall
implement a safety monitoring system. Employers must:
Ensure that the safety monitor is a competent person knowledgeable about fall
protection
At holes, guardrail systems must be set
up:
On all unprotected sides and edges
The top edge of a guardrail must be from 39 to 45 inches above the
walking/working
level, and there must also be a means of protection
from: Falling objects between top rail and walking
surface
Employers must provide a training program that teaches employees who might
be
exposed to fall hazards:
How to recognize such hazards and how to minimize them
Safety nets must be strong enough to support workers who fall, and must:
Have small enough mesh openings that employee doesn’t fall through net
itself
Approximately 75 percent of struck-by fatalities
involve:
Heavy equipment such as cranes or
trucks
It is preferable not to drive a vehicle in reverse if you have an obstructed rear view,
but if you do, make sure:
Vehicle has an audible reverse alarm
scaffolds
cranes
Workers are most at risk from falling objects when standing or
working:
under
under
wherever overhead work is being performed
To prevent injury from flying debris, use safety glasses, goggles, face shields, etc.,
where machines or tools may cause flying particles; and always inspect tools, such
as saws and lathes, to ensure that:
The protective guards are in good condition and firmly attached
Forklift operators should ground the forks of the forklift, turn the forklift off, set
the
parking brake, and prior to dismounting the
machine. neutralize controls
If a machine has an exposed pulley and conveyor but the portion of it that is
exposed
is well underneath the machine, the employer:
Must ensure all exposed and accessible sections of the machine are guarded
One who is capable of identifying existing and predictable hazards in the
surroundings, or working conditions which are unsanitary, hazardous, or dangerous
to employees, and who has authorization to take prompt corrective measures to
eliminate them is a/n :
competent person
Providing worker training on the safe use of the equipment being operated is
the
responsibility of the:
employer
To protect against caught-in or -between hazards, a worker should not only
avoid
wearing loose clothing or jewelry, but also a worker should avoid:
Performing maintenance or adjustment on equipment/machinery that hasn’t been
locked-out
There are a number of requirements that employers must do to protect their
workers
from caught-in or between hazards. Which of these is required if the worker’s
body, hands or clothing may come into contact with moving parts?
Provide guards on power tools and other equipment with moving parts
The critical first step in developing a comprehensive safety and health program is
to
identify physical and health hazards at a work site. This process is known
as: A hazard assessment
OSHA requires that many categories of PPE meet or be equivalent to standards
developed by:
The American National Standards Institute (ANSI)
above
beams
You should have head protection if which of the following apply to your
job?
Objects might fall from
There are low-hanging pipes
or
There are exposed electrical hazards
In general, head protection should do which of the
following?
— Be water-resistant and
slow
— Resist penetration by objects and absorb the shock of a blow
burning
— Have clear instructions explaining proper adjustment and replacement of the
suspension and headband
There might be one pair of protective eyewear for your task or station, rather than
individual eyewear for each employee. If this is the approach at your job site, then:
You must clean and disinfect the eyewear between each use
A noise level of 95 dB is than the lowest level at which hearing protection
is required (85 dB), and your exposure should be limited to six hours or
less. Ten times louder than
Safety footwear has to meet minimum compression and impact performance
standards, set by:
Gloves that are chemically resistant are usually made
from:
rubber or plastic
True or False: Full-body protection is sometimes made from materials such as
duck,
paper-like fiber, or rubberized fabrics, depending upon the
hazard. True
Before the start of each work shift, it is mandatory that:
A competent person inspects the scaffold before the start of each work
shift
The first step in building a scaffold is
to:
Conduct a site inspection
A scaffold must be erected “plumb, square, and level,” because:
If a scaffold is built even a few degrees off plumb, the resulting instability could
cause the weight of the scaffold to shift, potentially causing the overloading of one
leg and the eventual collapse of the scaffold
OSHA 1926.454(c) states: When an employer has reason to believe that an
employee
lacks the skill or understanding needed for safe work involving the erection, use or
dismantling of scaffolds, the employer shall:
Retrain each such employee so that the requisite proficiency is regained
When dismantling a scaffold, all work should be
conducted:
From the top down
Tube and coupler scaffolds over 125 feet high must be designed
by:
registered professional engineer
What type of scaffold – other than the tube and coupler scaffold – is ideal for
use
around complex structures?
a system scaffold
This scaffold is simply a rope attached to a harness with an assembly like a
boatswain’s chair for the worker to sit in.
Suspension scaffold
If a worker on a scaffold can fall more than 10 feet, they must be protected by
guardrails and/or personal fall arrest systems (PFAS). The type of fall protection
required will depend upon:
The type of scaffold
The four main causes of crane accidents are contact with power lines, overturns,
falls
and mechanical failure. Two other errors mentioned in this module that often lead
to trouble are:
Improper maintenance and failure to conduct regular inspections
No modifications or additions that affect the capacity or safe operation of a crane
or
derrick should ever be made without:
The manufacturer’s written approval, which should be kept on file
Truck-mounted and rough terrain cranes are both forms of a mobile crane, and
both
use which of the following to increase their
stability? outriggers
Rated load capacities, recommended operating speeds, and special hazard
warnings
or instructions must be:
Conspicuously posted on the crane, where the crane operator can see them while
he is at his control station
The four lifting principles that govern a crane’s mobility and safety during lifting
operations are:
Center of gravity, leverage, stability and structural
integrity
Employees working in the vicinity of a crane must take care to avoid what kind of
accident?
“Struck by”
Personnel hoisting platforms must be designed by:
A qualified engineer, or another competent specialist qualified in structural
design
True or False: Only personnel instructed in the requirements of the standard and
the
task to be performed – along with their tools, equipment and materials needed for
the job – are allowed on the platform.
True
If the hoist tower is not enclosed, the hoist platform or car must be totally enclosed
on all sides for the full height between the floor
and: The overhead protective covering
The greatest hazards posed by hand tools result
from:
misuse and improper maintenance
Power tools should never be carried by the cord or hose or be yanked from a
receptacle by the cord or hose; and cords and hoses should be kept away
from: Heat, oil, sharp edges
Sharp, abrasive, pinching, or otherwise hazardous moving parts of power
tools:
Must have protective guard to prevent contact with workers
Before an abrasive wheel is mounted, it should be inspected closely
and:
Sound- or ring-tested to ensure that it is free from cracks or defects
Neither the operator nor anyone else should ever stand directly in front of the
wheel
of an abrasive power tool as it accelerates to full operating speed. Why?
Because there is always the chance that the wheel wasn’t sound and could
disintegrate or explode
Pneumatic tools are powered
by:
Compressed air
Powder-actuated tools are extremely dangerous, with a “firing” mechanism
similar
to that of:
A loaded gun
If a powder-actuated tool misfires, the employee
should:
Wait at least 30 seconds, then try firing again
All jacks – lever and ratchet jacks, screw jacks, and hydraulic jacks – must have
a
device that stops them from:
Jacking up too high (a stop indicator)
OSHA defines a trench as:
A narrow excavation made below the surface of the ground in which the depth
is greater than the width – with the width not to exceed 15 feet
True or False: There is usually some form of warning before a cave-
in.
False
OSHA requires that all excavations in which employees could potentially be
exposed to cave-ins be protected by one or more of the following three methods:
Sloping, benching, shoring,
shielding
The formula for all simple slope excavations 20 feet (6.11 meters) or less deep
states
that for every foot of depth, the trench must be excavated
back: 1 and 1/2 feet
Trench boxes or shields must be designed or approved
by:
a registered professional engineer
Shoring or shielding is most often used when:
The location or the depth of the excavation makes sloping back to the
maximum allowable slope impractical
As mentioned in this module, in addition to cave-ins and related hazards,
workers
involved in excavation work also are exposed to hazards
involving: Falls, falling loads and mobile equipment
Employees are prohibited from working above other employees on the face of a
sloped or benched excavation unless:
Workers on lower level have overhead protection from falling objects
To prevent surface water from entering an excavation and to provide adequate
drainage of the adjacent area, OSHA standards require the use of:
Water removal equipment, diversion ditches, dikes, or other suitable methods
In the case of materials handling, storage, use and disposal, remember that the
main
and carrying
hazards are injuries from:
Improper
Being struck
lifting
by materials or caught in pinch
points
— Being crushed by improperly stored
materials
Because the number of injuries from operating powered industrial trucks was on
the
rise, the OSHA standard for Powered Industrial Trucks was revised March 1, 1999.
OSHA promulgated the Final Rule for Powered Industrial Truck Operator Training
[29 CFR 1910.178(1)], which:
Requires operator training and licensing as well as periodic evaluations
of operator performance
Requires operators to take and pass a written and road test (similar to a
driver’s education) before they can operate the forklift.
Operators must complete three separate aspects of powered industrial truck
training:
formal training, practice training,
and: Evaluation
To adhere to fire safety precautions, flammable and combustible materials must
be
stored according to:
Their fire
characteristics
General safety principles that can help reduce workplace accidents
include:
— Work practices
— Ergonomic principles
— Training and education
Material handling tasks should be designed to minimize of the given
activity.
— the weight
— the range of motion
— the frequency
Only employees need to demonstrate and practice safe manual lifting
techniques.
false
Manual materials is the most common category of compensable injuries in the
United States work force, with four out of five of those injuries
involving: the lower back
When manually moving materials, employees should always try to lift it alone if a
load is so bulky it cannot be properly grasped or lifted, when they cannot see
around or over it, or when a load cannot be safely handled.
false
Prior to starting all demolition operations, OSHA 1926.850 (a) requires
that:
an engineering survey be conducted
One of the most important elements of the pre-job planning
is:
the location of all utility services
Proper equipment for prompt transportation of an injured worker, as well as a
communication system to contact any necessary ambulance service, must be
available:
on the work
site
Mechanical demolition refers to demolition using equipment
like:
wrecking balls, jackhammers
Prestressed concrete is:
A structural material with tensioned steel strands embedded inside, which
compress the concrete and give it extra strength
Simple pretensioned beams and slabs of spans up to about 7 meters (23
feet):
Can be demolished in a manner similar to ordinary reinforced concrete
True or False: Electrical detonators can be inadvertently triggered by stray RF
(radio
frequency) signals from two-way radios
true
A blaster is:
A competent person who uses
explosives
All vehicles used for the transportation of explosives shall have tight floors, and
any
exposed spark-producing metal on the inside of the body shall
be: Covered with wood or other non-sparking material
All explosives must be accounted for at all times, and all not being used must
be
kept in a:
locked magazine
OSHA’s Hazard Communication Standard (HazCom) is designed to ensure that
information about and associated protective measures is
disseminated. Hazardous chemicals
Chemical manufacturers and importers must convey the hazard information they
learn from their evaluations to downstream employers by means of labels on
containers and:
Safety Data Sheet
Under the new HAZCOM/GHS requirements for Safety Data Sheets (SDS’s) they
must now have 16 total Sections.
true
Employers must provide employees with effective information and training on
hazardous chemicals in their work area:
At the time of their initial assignment
Whenever a new hazardous chemical is introduced into their work area
The noise exposure measurement your employer makes must include all
continuous,
intermittent and noise within a range of 80 dB to 130
dB. Impulsive
To determine whether employees need hearing protection, employers have to
measured in
decibels
consider:
The loudness
of
The duration
of
the noise, as
exposure to the noise
— How many sources generate loud
noises
Audiometric testing monitors an employee’s hearing:
over time