1.
1 Milliamp: faint tingle
2.
4. A ground fault circuit interrupter protects against the following: whose body is also in contact with the ground
3.
10 ft minimum working distance for what voltage: 50k
4.
10 Milliamps: Cant let go painful shock
5.
36% of electrical shock injuries result in what: falls from ladders
6.
40 cal is resistant to how many volts: 600v
7.
50% of overhead powerlines hazards result in what: direct worker contact
8.
60% of death due to lock out tag out ...: no lock out tag out was attempted
9.
70E is based on the following protective stratgies: creating an electrically safe work condition
training workers
planning the task
selecting and using PPE
10.
80% lineman fatailties result in what: lineman holding with bare hands
11.
80% of electrical injuries occur from what: arch flash and ignition of flammable clothing
12.
100 Milliamps: Almost certian death
13.
1910.147a2ii: lockout tagout production exemption
14.
A .... must be in tact for a GFCI to test properely: ground wire
15.
A break in the ground wire: results in ground fault protection becoming nonfunctional
16.
A ground fault can be detected by: measuring the voltage between the equipment frame and the ground bus at the service entrance
17.
A ground fault is:: energized frames resulting from electrical conductivity between energized conductors and equipment frames
18.
A ground-fault circuit interrupter (GFCI) is a device which opens the circuit when: a person's body conducts current between the hot wire in the circuit and ground
19.
Affected levels of training (lock out tagout) definition: job requires them to use equipment that is being worked on
20.
an anchor point must hold: 5000lbs
21.
arch tempratures can reach what: 35000F
22.
authorized levels of training (lock out tagout) definition: worker chosen to lock and work on equipment
23.
awareness levels of training (lock out tagout) definition: all ohter employees near the area
24.
Before attempting to extinguish an electrical fire, it is best to: Cut the power
25.
characteristics of a controlled access zone: contorl lines 6 to 25 ft from the edge
6 to 60 ft for pre cast concrete
200lbs minimum breaking strength
flagged every six feet
workers in CAZ must be trained to recognize hazards
a safety monitor most also be used
26.
conductor (defintion): a material that has free electrons. Electric current can readily move from one atom to another.
27.
current (I amps): the work of the system
28.
de-energize: free from any source of energy which could cause the movement of equipment. Also free from any eletrical connection to a voltage source or static charge which could cause movement through being turned on or off
29.
details of a guardrail: 42 inches
200lbs force
toe board
30.
ECP: energy
control
procedure
31.
Electric arc welding in the rain is okay if: Never, unless you have a death wish
32.
electric current (defintion): the flow of electrons through a conductor
33.
electric shock vs arch flash (arch flash): an explosive release of energy caused by an electric arc
the human body does not have to be part of the circuit to be injured or killed
34.
electric shock vs arch flash (electric shock): the human body becomes part of the electric circuit which may or may not cause injury or death
35.
electrical protective measures: guard live parts
proper use of flexible cords
use fuses and circuit breakers
proper grounding
use GFCI's
lockout/tagout
closed electric panels
training
36.
eletrical hazards: inadequate wiring
wires with bad insulation
ungrounded electrical systems and tools
overloaded circuits
damaged power tools and equipment
using the wrong PPE and tools
overhead powerlines
all hazards are made worse in wet conditions
37.
enegized electrical work permit is required to be completed by who: supervisor and employee signature
38.
energized: connected to energy source
39.
energized: connected to energy source which could cause equipment or material movement
40.
energy control procedure: a procedure that is developed documented and utilized for each unique service/ maintainence job to insure the control of potentially hazardous energy
41.
energy isolating device: a mechanical device that prevents the release of energy. ex circut breaker, disconnect switch, line blind chains etc
42.
energy source: any eletrical, mechanical, hydraulic, pneumatic, chemical, thermal, gravity or other source that can cause movement of a piece of equipment
43.
energy source ...: pneumatic chemical hydrualic electrical etc
44.
fall prevention: controlled access zone
guardrail
hole covers
fall restraint
warning line
safety monitor
45.
fall protection: harness and lanyard
anchor point
retractable
safety net
position device
46.
Falls are dangerous because of three primary elements: Free-fall distance the worker falls
Shock absorption at impact
Weight of the worker
47.
GFCI does not need to work to have.... work: ground prong
48.
GFCI stands for: Ground Fault Circuit Interrupter
49.
guard live parts of electric equipment operating at .... volts or more against accidental contact: 50 volts
50.
harness need to be inspected every: 10 yrs
51.
highest fatality rate of electrical fatalities: overhead line work
52.
horizontal lifeline must hold: 500lbs
53.
Insulator (defintion): a material that does not have free electrons. Electric current that does not have free electrons. Non-Metalic material
54.
lanyards can not be wrapped around and tied back into themselves or put in knots unless: backbiter style is approved
55.
lanyards need to be inspected every: 5 yrs
56.
levels of training for lock out and tag out: authorized
affected
awareness
57.
limited approach (defintion): qualified person shall advise the non qualified person of the electtrical hazard and warn him/her to stay out
58.
lockout materials must be: durable
substantial
standardized
identifiable
59.
lockout sequence: prep for shutdown
macine or equipment shutdown
machine isolation device ( ball vavle cover)
apply lockout device
stored energy
verification of isolation
60.
Lockout/tagout is a safety procedure mandated by: OSHA
61.
minimum distance approach distance for overhead lines: 10ft
62.
most dangerous type of wiring: hot ground reverse
63.
multi energy source must have what: written procedure
64.
number one way to prevent fatalities by overhead lines: maintain safe working distances
65.
OHM'S law: E = I x R
66.
OHSA's focus four in construction: electrical
falls
struck by
caught between
67.
OSHA 29 CFR 1910.147: rules regarding lock out tag out
68.
outside contractors must do what regarding a lock out tag out program: has to follow host employer program
69.
overvoltage (defintion): when the voltage in a circuit or part of a circuit is rasied above its upper designed limit
70.
power (W watts): Amount of energy delivered
71.
Power formula: W = E x I
72.
purposes of an outlet tester: test GFCI
confirms power
confirms proper wiring
73.
residental construction effective date: 2010
2011
74.
residual energy: any type of energy stored in the device
75.
Resistance (R ohms): the opposition to current flow within the system
76.
sections of an energy control procedure: state intended use
list specific steps
specific steps on placement / removal / transfer
specific steps for verification
77.
sections of an energy control program: written energy procedures
employee training
periodic inspections
78.
SES: single energy source
79.
shock hazard analysis (definition): shall determine the voltage to which personnel will be exposed, boundary requirements, and the personal protective equipment necessary in order to minimized the possibility of electric shock to personal
80.
stored energy: any form of energy which is contained in a unit and can result in the unexpected and uncontrolled movement of the item
81.
tag only systems requirements: if a device is not capable of being locked out
employer shows full employee protection
82.
the company has responsbility to: train
provide equipment
procedure
83.
The first step in lockout/tag out is to: Turn off the equipment and disconnect the energy source
84.
The ground wire carries current under normal conditions true or false: false
85.
The neutral wire carries current under normal conditions true or false: true
86.
the PPE required for working on or near live electrical components depends on what factors: voltage
current
distance
exposure time - most important
87.
the service panel is not designed for what: to save worker lives
88.
things needed for preventing a fall in a hole: cover
secured (500lb)
marked
89.
transient energy (defintion): is a short lived burst of energy in an eletrical system caused by a sudden change. May be internal or external event
90.
vertical distance from working level horizontal plane of net when placed at 5 - 10 ft (net overhang): minimum required horizontal distance of outer edge of net from the edge of the working surface 10 ft
91.
vertical distance from working level horizontal plane of net when placed at 5 ft (net overhang): minimum required horizontal distance of outer edge of net from the edge of the working surface 8 ft
92.
vertical distance from working level horizontal plane of net when placed at above 10 ft (net overhang): minimum required horizontal distance of outer edge of net from the edge of the working surface 13 ft
93.
voltage (E volts): pushes current through the system
94.
way most workers died of eletrcial shock over ten years ago: bare hands to wire
95.
what determines severity of a shock: amount of current during the amount of time in contact with the electricty
96.
what is the new defintion of residential construction: wood frame residental use
97.
What is the only purpose of a Lockout/Tagout?: To protect employees from hazardous energy including electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or any other types of energy
98.
What must be done before restoring energy to equipment after removing a lockout/tagout: The Authorized Employee will make a visual inspection of the work area to ensure that all nonessential items have been removed, all components are operationally intact, and all affected personnel are informed
99.
when subpart M apply: leading edges
open holes
floor and wall openings
water
ramps
hoist areas
roofs and riggs
confined spaces
formwork / rebar
100.
Which of the following must be notified prior to equipment shutdown for repair?: affected employees
101.
Which two parameters are most important for fuses?: ampere and current-interruption rating
102.
Who can remove a Lockout/Tagout: Only the employee who hung it and his or her Supervisor if the employee can not be contacted
103.
Who is an Authorized Employee: An employee, who has been trained, examined and is knowledgeable of the company's lockout/tagout procedure and hazardous energy control and has been designated as such
