4.
PDF OSHA Safety - Electrical Safety - Red Vector 4.Must be replaced, Always use a GFCI: Draw a line from the item on the left that corresponds to the match on the right. b.Electrical tools Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. Using multi-receptacle boxes designed to be. Question 3: A/an ____________ is a unit of measurement for electrical resistance. =EAn`u!d, |\~Y>ZF(
dnLN\2vP6
>sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/
`&~O4j)>1P*M 5>F:1B.g!AR 0000421627 00000 n
Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 0000002403 00000 n
Select the correct answer and then click DONE. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: Fire Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. 4 0 obj
endobj
Is split b.Metal 4.Broken.
electrical safety part 1 Flashcards | Quizlet 0000014257 00000 n
0000005632 00000 n
3. Which of the following are insulators of electricity? Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. Protection is lost because it will not trip when the system's load has been exceeded. Supply power for tools or equipment on a long-term basis. Electrical current travels through insulated ________. Arc Flash. 2. (C) Hot sticks. 1.Missing or broken path to ground. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. To verify an electrically safe work condition, all these conditions should be confirmed EXCEPT: Effective training of employees includes all of the following EXCEPT: How to operate power tools in wet conditions. 12 months C. 6 months D. Never Q23. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Work performed on an electrical system within reaching distance of energized components is_____work. 0000009628 00000 n
endobj
<>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>
0000004444 00000 n
Question 4: Which of the following is a type of burn caused by electrical hazards? <>>>
0000108920 00000 n
Adapter For 3-Prong Cord Not Grounded To Outlet: On May 27, 1986, two workers were using a 110-volt auger to install tie-down rods for a manufactured home.
Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy 2.Yes, because he is using a portable power tool. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. 0000057373 00000 n
4. c.Touching the motor A laborer carried a piece of wire reinforcement (10 feet long by 8 inches wide) along the top section of the scaffold and contacted the power line with it. 0000003603 00000 n
OSHA will keep all identities confidential. Is not painted over 2.Loss of muscle control Draw a line from the item on the left that corresponds to the match on the right. [Flexible Cords and Power Tools]. Select the correct answer and then click DONE. Look for overhead power lines and buried power line indicators. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? :$#k9BPnZ{Qqe/reKy,'ZlB# A. wrap tape around the damaged spot to prevent electrical shocks. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. The factors that determine the severity of an electrical injury include: c.Gasoline Use only cords, connection devices, and fittings that are equipped with strain relief. 3.The length of time the body is in contact with electricity 0000004273 00000 n
0000006866 00000 n
Electrical Safety Multiple Choice Questions and Answers for competitive exams. [Flexible Cords and Power Tools] If there is no ground-fault protection, these can cause a ground-fault that sends current through the worker's body, resulting in electrical burns, explosions, fire, or death. The driver stopped the truck under the power line, and the victim, not realizing that the truck had moved, swung the boom to position the bucket behind the truck. Electrocution. Intentionally creating a low-resistance path that connects to the earth. 0000013999 00000 n
The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 0000007427 00000 n
-Rubber. 0000021516 00000 n
4 0 obj
c.Wood Be sure equipment that has been shop fabricated or altered is in compliance. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. D. Have an ANSI sticker and an expiration date. Death.
Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow d.Constructive objects, Select all answers that apply to the following statement and then click DONE. The floor is covered in water and she is barefoot. Quiz Question 1: Which of the following is not a category of electrical burns? 2.Is working properly How might this event affect the ability of animals to obtain energy to live? 0000015549 00000 n
The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. %PDF-1.5
According to NFPA 70E, job briefings must be held for those employees that will be working on or near live parts operating at ______ or more. Short In Power Saw/Ungrounded Temporary Power Supply: On July 10, 1986, a 22-year-old carpenter was working at the construction site of large apartment complex, using a portable electric saw to construct the wooden framework of a laundry building. 0000420887 00000 n
A. indoors. gYpV:+ V1?`T`P``ya W3 |"H36K1A@, rO(V[|NAT30 qI?
endstream
endobj
221 0 obj
<>/Filter/FlateDecode/Index[30 152]/Length 27/Size 182/Type/XRef/W[1 1 1]>>stream
Most of the hydrides of Group 1A and Group 2A metals are ionic. If electrical equipment is used in ways for which it is not designed, you can no longer depend on safety features built in by the manufacturer. Additionally, the ground prong was missing and there was no GFCI protection. 4.Circuit breakers, When inspecting power tools, look for: Select the correct answer and then click DONE. Question 1: Employers must ensure that every electric utilization system and all utilization equipment installed, majorly modified, or replaced after March 15, 1972, complies with the standards for electricity set by the National Fire Protection Association, which have been adopted by OSHA. Question 2: Which of the following are ways employers must protect their employees on the workplace? Is the west coast of Africa a plate boundary? 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. 30 days B. s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW`
{
endstream
endobj
191 0 obj
[/ICCBased 211 0 R]
endobj
192 0 obj
<>
endobj
193 0 obj
<>
endobj
194 0 obj
<>
endobj
195 0 obj
<>
endobj
196 0 obj
<>stream
Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 0000007116 00000 n
0000000816 00000 n
0000004946 00000 n
0
What is the most common, non-fatal, electrical shock-related injury? <>>>
d.Alert workers of any water in the area, GFCI is an acronym for: (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Freeze <>
[, Use all equipment according to the manufacturer's instructions.
Electrical Safety Quiz-Test Your Electrical Safety Knowledge 1.Flammable liquids Hand-operated metal shifting ropes or cables of electric elevators. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. Provides information about the hazards that electrical workers may experience as a part of their jobs. %
OSHA: Common Electrical Hazards Flashcards | Quizlet PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. . <>
d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. Electric current cannot exist without an unbroken path to and from the conductor. [Power Tools]. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Match the length from job to outlet. [, Do not modify cords or use them incorrectly. <<7628BB2D46738F42B2FC6393656F4718>]>>
List the four main types of electrical injuries, Using the illustration, select the answer that matches the picture, Identify the illustration by selecting the appropriate answer. 0000427811 00000 n
1. Select the correct answer and then click DONE. hazard or that their employer is not following OSHA's rules. Ground all power supply systems, electrical circuits, and electrical equipment.
Electrical - Overview | Occupational Safety and Health Administration Isolating, Power lines may be located underground. d. No, because an extension cord would not provide enough power. Does the fall qualify as an electrical accident? 4.The amount of current, An electrical burn may affect: Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated.
2. Additional minimum clearance distance is required for power lines carrying over ________. 0000005520 00000 n
-Falls. 4.Running through doorways. Visually inspect all electrical equipment before use. Find the energy required to raise an electron from the n=4n=4n=4 state to the n=5n=5n=5 state in Li2+\mathrm{Li}^{2+}Li2+ and in hydrogen atom. 0000420277 00000 n
d.Water, Other electrical hazards in the workplace include: -Voltage= a measure of electrical force. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 1.When you are using electricity near water endobj
If a defective power tool gives you an electric shock, how might your muscles react? d) All of the above. You should? The victim used two extension cords to supply power: a home-made cord plugged into an ungrounded receptacle on the pole, and a UL-approved cord extending from the homemade cord to the saw. 0000003771 00000 n
%PDF-1.4
%
Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 4. How fast would the ball be moving at the moment of release? Electrical Hazards Electrical hazards can be found in nearly every roofing work site. . 5.Twitch, Electrical shock may result in: Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Which of the following are conductor of electricity?
OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet SECTION #4 | Participant Guide 2 Electrical Safety mELECTRICAL SAFETYm mACTIVITY 1 - GROUNDINGm In your small group, read fact sheets A and B, and the following scenario. a.Shut off power within a fraction of a second The NEC C. Suggestions
3.Cramp 5. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Yes, because he will be using electricity near water. Take any defective equipment out of service. The plug of the compressor and an extension cord had been modified to fit a wall outlet for a common household clothes dryer (220 V). Besides personal bodily injury, what other electrical hazards can be found in the workplace? C. near water. Electrical hazards are life threatening incidents that could happen due to electricity. Question 1: Which of these is a type of Ground Fault Circuit Adapter? 2.Skin Effective means of controlling power line hazards include: H\n0)M) 0Ir(,?FoKhdklz6zHG;mOqOh-tv.]NGv~d.m\S{|Fo-x-\"1X/niCYeq"ol8D~&?Kr V_/9yf
9JV%J899s{_G#R0="dL5,p: 0000028595 00000 n
These short objective type questions with answers are very important for competitive exams as well as Board exams. h|UnH}+i-. 0000007741 00000 n
The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. There were no eyewitnesses to the accident, but evidence suggests that while the victim was handling the damaged and energized extension cord, he provided a "path to ground" and was electrocuted.
(E) a, b, and c. 2. a.related to muscle damage. a.Conductive objects 2.
OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet Other protective measures include guarding or insulating the lines. d.Metal, Over half of all deaths caused by electricity result from contact with ________. OSHA 29 CFR 1910.147 . (D) None of the above. [Flexible Cords] Cords that are not 3-wire type, not designed for hard-usage, or that have been modified, increase your risk of contacting electrical current. 4.On equipment that must run unattended for long periods of time, Manufacturing equipment may be grounded using a wire connected to a rod driven into the earth.
c.15 feet 1. c.Three-prong plug d. Not checking to make sure that the motor was properly grounded, If the circuit does not turn off when testing the GFCI, the GFCI: Switch c.Guaranteed Fault Circuit Interrupter 0000002122 00000 n
3.Vapor 2. Lx*jWP# /c2)|]NXqAx>=~'[ OSHA 29 CFR 1910, Subpart P . Lockout/tagout procedures. What is the minimum clearance distance you must maintain from the power lines? Question 1: Each year, approximately __________ workers suffer from electricity related injuries. B. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. A co-worker disconnected the power cord to the saw, too late to save the victim. 0000001672 00000 n
1.Is faulty 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. -Severe skin burns. Suppose you could convert the 525525525 Calories in the cheeseburger you ate for lunch into mechanical energy with 100%100 \%100% efficiency and you throw a 0.145kg0.145~\mathrm{kg}0.145kg baseball with the energy contained in the cheeseburger. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. When used on the moon? When current travels through your body - Definition of electric shock. Underground electrical hazards are: A. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). 3.Something that causes current to flow through the . (B) Switch sticks. a.Standing in water When current travels through your body - Definition of electric shock, Choose the primary cause of an electric shock, Electric shock is caused when current travels through the body, the exits the ground. c) Age Due to the dynamic, rugged nature of construction work, normal use of electrical equipment at your site causes wear and tear that results in insulation breaks, short-circuits, and exposed wires. What type of burns are the result of current flowing through and exiting the body? On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. 0000068035 00000 n
Select the correct answer and then click DONE. g]+fn_m{mja_0Y w
endstream
endobj
189 0 obj
<>
endobj
190 0 obj
<>stream
c.911 <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>
All of the following are essential considerations for the safe use of cords and wiring EXCEPT: Which one of these methods is not acceptable for putting out an electrical fire? a.A small current 0000005042 00000 n
Computers 3 0 obj
When an electric shock occurs, your muscles may: Select the correct answer and then click DONE. A fan connected to a 120-volt electrical system via an extension cord provided ventilation for a worker performing a chipping operation from an aluminum stepladder. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. The accident site was wet; also, humidity was high and the victim was sweating. Occupational Safety & Health Administration, Death Due to Lack of Ground-Fault Protection, Deaths Due to Missing or Discontinuous Path to Ground, Deaths Due to Equipment Not Used in Manner Prescribed, Deaths Due to Improper Use of Extension and Flexible Cords, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Improper use of extension and flexible cords, Electrical Safety: Safety and Health for Electrical Trades Student Manual, ground-fault circuit interrupters (GFCI)s, assured equipment grounding conductor program (AEGCP), Electricity and Tree Care Work A Deadly Combination, Working Safely Around Downed Electrical Wires, Electrical Safety Hazards of Overloading Cable Trays, Small Business Safety and Health Handbook, Fire Fighters Exposed to Electrical Hazards During Wildland Fire Operations, Fatality Assessment and Control Evaluation (FACE) Program, NIOSH Face Reports Indexed by Industry or Cause of Fatality, Worker Deaths by Electrocution: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance. Use only extension cords that are marked with a designation code for hard or extra-hard usage. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 0000002150 00000 n
Additionally, the ground prongs were missing from the two cords. He may have dropped the extension cord at the site and not heard the connector break. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. lex has set up a mobile engine testing station in the maintenance area. xYmo -ER/&@[D,_! 3. stream
0000017163 00000 n
Select the correct answer and then click DONE. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 4.Flex
OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet If a worker has been retaliated against for using their rights, they I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. What three things must be present for a current to flow through a conductor. 0000002557 00000 n
C 277v. s\A0W+ trailer
<]/Prev 500768/XRefStm 1495>>
startxref
0
%%EOF
222 0 obj
<>stream
Which group would be more accurate when used in an accelerating spaceship? Electrical safety quiz answers are given below. OSHA 29 CFR 1910, Subpart S . 2.Grease 0000004686 00000 n
Electrical Hazards - SSOE Group Use only extension cords that are 3-wire type. Question 2: Which of the following is NOT a category of electrical burns? Only after a rescue squad arrived about 4 minutes later did anyone realize that the crane was in contact with a power line -- all those present had assumed that the victim had suffered a heart attack. The ________ keeps the electricity on its intended path through the conductor. 0000414648 00000 n
a.Supply power for tools or equipment on a temporary or short-term basis. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. D. near other electrical equipment. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. The following hazards are the most frequent causes of electrical injuries Contact with power lines, Lack of ground-fault protection, Path to ground missing or discontinuous, Equipment not used in manner prescribed, and Improper use of extension and flexible cords. 0000006893 00000 n
2.The person's physical condition NFPA 70E defines those special circumstances and sets rigid electrical safety limits on voltage exposures, work zone boundary requirements and necessary personal protective equipment (PPE). OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. Outlets Which of the following can be the result of electric shock? Leaving or using electrical appliances near water - As electric current is transmitted faster in on wet surfaces, you stand a chance of getting an electric shock.
Best Practices with Power Lines Quiz OSHA 30 - Best d. 20 feet. View Answer Answer: 600v 4 . If the power supply to the electrical equipment at your site is not grounded or the path has been broken, fault current may travel through a worker's body, causing electrical burns or death. 1476 0 obj
<>stream
You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Should Ajay use a GFCI? Of the following choices, which are frequent electrical hazards vpfuI)],s 1452 0 obj
<>
endobj
Frames of non-electrically driven elevator cars to which electric conductors are attached. <>
a.Yes, because the electrical shock caused the fall. To be safe, you must think about your job and plan for hazards. 1.Missing What was Latoya's first mistake? 3. OSHA 10-Hour Safety Course - Electrical Safety Page 5 of 5 Use the three-stage safety model to stay safe: recognize, evaluate, and control hazards. b.Rod b) By supplying GFCIs, or ground-fault circuit interrupters 0000002195 00000 n
3.No, because he will not be touching any grounded material when using the tool. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. 0000110659 00000 n
endobj
If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. a.Two-prong plug c. No, because the electricity is needed on a long-term basis. When it completes a circuit through the body. lb
MKS Select the choices that accurately define the common electrical term. b.811 b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. c.falls. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Improper Use of Extension and Flexible Cords. 2.Using extension cords or electrical tools properly. 0000004965 00000 n
Select the correct answer and then click DONE. b.The tool's power cord. c. Inductive objects You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Bob is asked to repair some overhead wiring, requiring the use a ladder.
PDF Electrical Hazards - Occupational Safety and Health Administration xref
Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. -If current passes through the body near the heart or brain. Which of these can be used as insulating live-line tools for electrical protection. Continually audit cords on-site. Select the correct answer and then click DONE. 1.
PDF Working Safely with Electricity - Occupational Safety and Health he most common shock-related injuries are: OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. Muscular contraction and nerve damage occur; death likely. 1.A source of electrical current to flow. b.30,000 volts What do tripped circuit breakers and blown fuses indicate? 4. 3.Draped over equipment. De-energizing
NFPA 70E: Standard for Electrical Safety in the Workplace