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OSHA traing > OSHA 30 Construction Focus Four Fall Hazards > Flashcards

OSHA 30 Construction Focus Four Fall Hazards Flashcards

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1
Q

What resources does NIOSH have for fall hazards

A

Fatality and health topic pages

Fatality assessment and control evaluation

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2
Q

What is a fall hazard

A

any hazard that lead to a fall

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3
Q

What are the three types of hazard

A

active always hazards

dormant could be hazards under the right conditions

theoretical up for debate if these are hazards or not

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4
Q

can any walking surface be a fall hazard

A

yes

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5
Q

what is the lowest height you can fall and still be at risk of having serious injury

A

4 feet

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6
Q

At what working distances for General industry Maritime industry and construction does OSHA require fall protection

A

4ft for general industry

5 ft. for maritime industry

6ft for construction

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7
Q

When does OSHA say fall protection is mandatory no matter what height you work at

A

if you are working over dangerous equipment

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8
Q

What is a theoretical hazard

A

a hazard that is only obvious and only revealed after an incident

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9
Q

When does a fall hazard become a fall incident

A

when their is not enough done to protect from a hazard

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10
Q

How long does it take human to fall
4feet
16feet
36feet
64feet

A

0.5s
1s
1.5s
2s
2.5s

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11
Q

What is the silent killer of construction

A

complacency

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12
Q

What are some causes of complacency at work

A

loss of drive from workers

unsafe acts and conditions

workers losing their drive

management not evaluating and enforcing safe work procedures

major focus on production

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13
Q

what are some ways of combating complacency

A

safety audit

pre-risk hazard recognition

Effective safety and culture where workers look out for each other

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14
Q

what is the leading of cause of deaths in contruction

A

leading edges

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15
Q

basic elements of controlling roofing hazards

A

limit access to the roof

train all employees who access the roof on the recognition and control of fall hazards

perform a hazard analysis prior to each roof entry

continuously improve procedures to ensure worker safety

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16
Q

when should an employee be retrained for roof hazards

A

Whenever an employee does not understand the requirement or cannot demonstrate competence

whenever changes in workplace conditions or scope occur

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17
Q

How many more ironworkers are killed then construction workers

A

iron workers are 10X more at risk of death then the average construction worker

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18
Q

what are the keys of effective fall protection

A

training

equipment

inspection

installation

connections

use

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19
Q

What is the second highest fall hazard

A

scaffolding

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20
Q

what are some causes of unsafe scaffolding

A

lack of supervision

used of incompatible parts

excess weight

unstable foundation

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21
Q

What three attributes are the highest reasons for scaffold accidents

A

planking or supports failing

lack of guardrails

lack of fall protection

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22
Q

what should always be cleared of scaffolding to avoid falling

A

ice and snow

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23
Q

What is the third leading cause of falls

A

ladders

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24
Q

what are the top three frequently cited ladder violation

A

1.ladder not extended 3 feet above the landing

2.No worker training

3.improper use of the top step of stepladders

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25
how far above the working surface should be
3ft
26
Are excavation exempt from having fall hazards
no
27
Osha requires fall protection when working over a trench that is
6 ft or higher
28
what is the hierarchy of fall hazards
elimination removing the need for working in heights or near hazards prevention ( full protecting from fall hazards) safe work platforms ( make fall hazards significantly more safe ) PPE administrative controls ( new practices that inform works of hazard and signs indicating hazards)
29
What are three generals acceptable methods of protection for vertical drops of 6ft in order of use
Guardrails Safety net systems personal fall arrest systems
30
What are the specification of an OSHA certified guardrail system
Top rails must be at least 4 inch thick to prevent cuts and lacerations must be between 38 and 45 inches from the working surface; If wire rope is used, it must be flagged at least every six feet with highly visible materials Midrails, screens or mesh must be installed when there are no walls at least 21 inches high. Screens and mesh must extend from the toprail to the working level. There can be no openings more than 19 inches; The toprail must withstand at least 200 lbs. of force; the midrail must withstand 150 lbs. of force; The system must be smooth enough to protect workers from cuts and getting their clothes snagged by the rail. If guardrails are used around holes at points of access, like a ladderway, a gate must be used to prevent someone from falling through the hole, or be offset so that a person cannot walk directly into the hole.
31
What are the requirements for work nets
be as close as practicable under the working surface but neve more than 30feet below be inspected every week for damage have a border rope with a minimum strength of 5000 lbs extend outward a sufficient distance absorb the force of a 400lb drop test all items in net must be removed as soon as possible
32
personal fall arrest systems
a way to protect workers from falls required when exposed to fall hazards 6 feet or more required for workers on a suspended scaffold more than 10 ft above the working surface
33
what are the major components of a personal fall arrest system
anchor and anchorage connector connecting device full-body harness
34
what is a position system
systems that allow worker to work vertically they require a separate fall protection system if the worker works at least 6ft from the ground
35
What are the 4 types of lanyards
Rope- Offers some elastic properties for all arrests Web- ideal for restraint purposes where fall hazards are less than 2 feet Cable positioning-designed for corrosive or excessive heat environments and must be used in conjunction with shock absorbing devices shock absorbers-best for fall restraints the fall arresting force will be greatly reduced
36
What OSHAS fall protection standards
Provide working conditions that are free of known dangers. Keep floors in work areas in a clean and, so far as possible, a dry condition. Select and provide required personal protective equipment at no cost to workers. Train workers about job hazards in a language that they can understand.
37
what is a connector
a device used to secure a worker to their equipment
38
Why are retractable lanyards popular in fall hazard heavy enviroments
they limit free fall to 2ft have 3600 tensile strength no shock absorber needed
39
Why are retractable lanyards not always the best solution
they are subject to a hazard caused the pendulum effect which, if close enough to the ground, can still cause injury to the worker
40
were should the attachment location of the body harness be,
in the center of the back near the shoulder level or above your head
41
PFAS stands for
personal fall arrest systems
42
working load rating
the maximum load the equipment can withstand while still functioning properly
43
max breaking or tensile strength rating
the max strength the equipment can withstand before breaking
44
what is the required tensile strength of vertical life lines
5000lbs
45
how strong must he anchorage point be
3000lbs
46
what is the only case in which restrain systems can be utalized
if the slope surface is equal to or less that a 4:12 slope
47
lanyards are examples of what types of devices
deceleration devices
48
what is a deceleration device
Deceleration device means any mechanism, such as a rope grab, ripstitch lanyard, specially woven lanyard, tearing or deforming lanyard, or automatic self-retracting lifeline/lanyard, which serves to dissipate a substantial amount of energy during a fall arrest, or otherwise limit the energy imposed on an employee
49
how strong must be anchorage strength be for a deceleration device
3000lbs
50
how long must the fixed ladder for a lanyard be
over 20ft in length
51
what is the maximum free fall a deceleration device can allow a worker to experience
2 feet
52
what are the requirement for the anchorage point for a lanyard
the anchorage must be independent of and anchorage used to support or suspend platforms be able to support at least 5000lbs per worker attached to it
53
what is the maximum force OSHA allows on a body
1800 lbs. or less
54
what is the minimum tensile strength for a conenctor
5000lbs
55
body belts are allowed for
working positioning only
56
how many deaths each day does the construction industry deal with
4
57
what are three ways one can prevent a fall from a ladder
choose the right ladder for the job tie the top and bottom of the ladder to fixed points if necessary don't carry tools or other materials in hand while climbing ladders
58
what are three types of ladders
step ladders straight ladders extension ladders
59
how can you determine the correct angle for the ladder
every 4 ft high the ladder is the base must be 1 ft from the wall ex a 10 foot roof requires a 14 foot ladder
60
what is the min distance between the base as and the wall
2-1/2 ft
61
how are ladders rated
heavy duty supports (I) 250 lbs extra heavy duty supports (IA) 300lbs special duty supports (IAA) 375lbs
62
what are OSHA's requirements for operating a ladder
they require a 3 point contact when ascending or descending a ladder
63
it is important to secure you ladder to
a fixed and secure point
64
what is the requirement for weight a scaffolding system must support ?
its own weight and at least 4 times the weight of the intended load
65
what are the requirements of supported scaffolds in regard to the planks?
working platforms or decks must be planked close to the guardrails planks must extend beyond a support at least 6 inches planks up to 10ft long must not extend more than 12 inches
66
what are the requirements of a suspended scaffold
the platform must be at least 18 inches wide each rope must support at least 6 times the max intended lad including the weight of the scaffold itself
67
how strong must a structure a lifeline is tied to be
it must be able to withstand 5000lbs
68
how strong must counterweights for a suspended scaffold be
they must be able to withstand a force 4x the tipping moment
69
the employer must provide a safe access to the scaffold when
a platform is 2ft above or below the point of access or when you need to step across 14 inches to get to the platform
70
what is not allowed in regards to a scaffold access
climbing on cross braces
71
planks that are 12 ft long on a supported scaffold must extended how long
at least 6 feet but no longer then 12 feet
72
guard rails on supported scaffolding must be
between 38 to 45 inches
73
if a worker is exposed to falling 6ft or more from an unprotected side what must the employer do
they must select a guard rail system
74
what must employers do in terms of anchorage points
they must ensure that the employee understands the anchorage points and that the employees are connecting to it properly and that the equipment has been inspected properly
75
a guardrail system is required for scaffolding that is over
10ft above a lower level
76
planks are to be overlapped
at least 6 inches but no more than 12 inches
77
how must scaffolding be inspected by
a competent person
78
can lanyards be made of natural fiber ropes
no
79

OSHA traing (28 decks)

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