which of the following are electrical hazards osha quizlet

0000015549 00000 n Question 4: Which of the following is a type of burn caused by electrical hazards? 1.Missing or broken path to ground. Power was supplied through two extension cords from a nearby residence. Frequently inspect electrical systems to insure that the path to ground is continuous. OSHA 29 CFR 1910, Subpart S . Work performed on an electrical system within reaching distance of energized components is_____work. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. <<7628BB2D46738F42B2FC6393656F4718>]>> What is the most common, non-fatal, electrical shock-related injury? 5. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 4.Circuit breakers, When inspecting power tools, look for: A. wrap tape around the damaged spot to prevent electrical shocks. How might this event affect the ability of animals to obtain energy to live? Then answer the questions below. Both could have prevented the accident from occuring. Looking for NFPA 70E Certification? NFPA 70E: Standard for Electrical Safety in the Workplace Other protective measures include guarding or insulating the lines. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 4.Running through doorways. 1. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. The workers had removed their shirts and were sweating. Damaged Extension Cord Leaves Arc Welder Ungrounded: A 29-year-old welder attempted to connect a portable arc welder to an electrical outlet using an extension cord. 2.Grounding In which of the following workplace situations are you at risk for coming into contact with live electrical . OSHA 10 General Industry Test Answer Key WALKING. 0000008392 00000 n Select the correct answer and then click DONE. B 208v. <> 2.Grease Identify the oxidizing and reducing agents. Electrical Safety Quiz-Test Your Electrical Safety Knowledge On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. <> When does electricity become hazardous to humans? Quiz: Electrical Hazards. Intentionally creating a low-resistance path that connects to the earth. 1.Cuts c.The outlet. stream True. 0000003771 00000 n As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. x=k6S *ywvkDyb_w rg&@Q5/^4O_~w/]7[xqs7Zt?LK-,>W\W`Mb?n8\.vpOJA7~5R%.oJd|Bbv7biQH%^~C=m3_ov{8] }C.Se={o7H[w@/^j BgXRC/O/eiLHiN\4~7x=^J@|]zu"x]lQ-+.xF=oY +B?jSl|(agF_].+UH\!/;AU .cG!h@42 iqnkZtdc#^)AX96(wFZ,RP{[\j\aJgc) diV;BNzZge(}=0Pj Qp@"]yOnNw89 a. Use only equipment that is approved to meet OSHA standards. 0000421627 00000 n 1 0 obj Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. a. Stay at least 10 feet away from overhead power lines. There are many types of hazards - chemical, ergonomic, physical, and psychosocial, to name a few - which can cause harm or adverse effects in the workplace. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 1.Clench Select the correct answer and then click on DONE. 4. 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. This is action is also known as creating or completing an electrical circuit. a.Extension cords 0000002385 00000 n Working with electricity can be dangerous. Provides information about the hazards that electrical workers may experience as a part of their jobs. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. When inspecting extension cords, look for: b.Rod Select the correct answer and then click DONE. Contact utilities for buried power line locations. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? Freeze The workers administered CPR to the victim, but to no avail. hbb``b``3N0  endstream endobj 183 0 obj <>/Metadata 28 0 R/Names 184 0 R/Outlines 23 0 R/Pages 27 0 R/StructTreeRoot 30 0 R/Type/Catalog/ViewerPreferences<>>> endobj 184 0 obj <> endobj 185 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/Properties<>>>/Rotate 0/StructParents 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 186 0 obj <> endobj 187 0 obj <> endobj 188 0 obj <>stream c) Establish and enact an assured equipment grounding conductor program (AEGCP) 0000010603 00000 n 5 feet 0000002403 00000 n What type of burns are the result of current flowing through and exiting the body? 0000427811 00000 n 0000068035 00000 n The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . vpfuI)],s 0000005632 00000 n Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 0000004273 00000 n d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. Does the fall qualify as an electrical accident? 2. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 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. Electrical Safety Multiple Choice Questions and Answers for competitive exams. To avoid injury or death, you must understand and recognize hazards. 0000420564 00000 n c.40,000 volts c. No, because the electricity is needed on a long-term basis. b.The tool's power cord. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Electric current cannot exist without an unbroken path to and from the conductor. As a result, the ground prong of the welder plug did not insert into the ground terminal of the cord, so that as soon as a connection was made, the outside metal case of the welder became energized, electrocuting the victim. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Visually inspect all electrical equipment before use. 128 0 obj <> endobj xref 128 26 0000000016 00000 n OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. c.Gasoline D. Have an ANSI sticker and an expiration date. 3.Cramp Additionally, the ground prongs were missing from the two cords. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. endobj You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 1476 0 obj <>stream The accident site was wet; also, humidity was high and the victim was sweating. b) By supplying GFCIs, or ground-fault circuit interrupters True. Extension cords may become a trip hazard when: 0000001814 00000 n PDF C. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream 0000017336 00000 n 1452 25 A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. An OSHA inspection revealed that the tool's original power cord had been replaced with a flat cord, which was not designated for hard service, and that strain relief was not provided at the point where the cord entered the tool. Visually inspect all electrical equipment before use. It is important to note that NFPA 70E is a . The power switch on the welder was already in the "on" position, and the female end of the extension cord, which was spring loaded, had apparently been dropped and broken. 0000421920 00000 n Handling Damaged Extension Cord When Energized: A 19-year-old construction laborer was working with his foreman and another laborer to construct a waterfront bulkhead for a lakeside residence. Electrical Safety Quiz - OSHA.net Draw a line from the item on the left that corresponds to the match on the right. b. Deductive objects If a worker has been retaliated against for using their rights, they d.Constructive objects, Select all answers that apply to the following statement and then click DONE. Muscular contraction and nerve damage occur; death likely. c.911 Lockout/tagout procedures. (D) None of the above. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 4. 0000011060 00000 n Which of the following factors determine how severe an electrical injury might be? b.Yes, as it would be too expensive to install more permanent wiring and receptacles. %PDF-1.5 d. No, because an extension cord would not provide enough power. OSHA 30 Construction Final Test Answer Key - Studylib Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. b.Electrical tools 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. OSHA 29 CFR 1910, Subpart P . electrical safety part 1 Flashcards | Quizlet 1. When it completes a circuit through the body. What are the 4 main type of hazards? [Ultimate Guide!] <> d. 411, You are working with a 10-foot section of a conductive pipe near power lines. 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. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. xYmo -ER/&@[D,_! a.311 182 0 obj <> endobj xref 182 41 0000000016 00000 n Best Practices with Power Lines 1. The victim was totally deaf in one ear and suffered diminished hearing in the other. 0000002386 00000 n a.Supply power for tools or equipment on a temporary or short-term basis. 4.The amount of current, An electrical burn may affect: Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Does the fall qualify as an electrical accident? 0000002195 00000 n Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 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. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: The small electrical current enters his body through his left leg. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 0000004208 00000 n 2.Complete Is the west coast of Africa a plate boundary? -Rubber. Be sure equipment that has been shop fabricated or altered is in compliance. 0000003413 00000 n . [Power Tools]. When you plug in a device (e.g., a power tool), the electricity takes the easiest path from the plug-in, to the tool, and back to the power source. 2. Using equipment outdoors that is labeled for use only in dry, indoor locations. OSHA will keep all identities confidential. c.Touching the motor What three things must be present for a current to flow through a conductor. c.15 feet What was Latoya's first mistake? Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) d. 20 feet. 0000005406 00000 n trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream 3.The length of time the body is in contact with electricity 4 0 obj 3. 0000000016 00000 n %PDF-1.5 Burns. Select the correct answer and then click DONE. Underground electrical hazards are: A. <> B. PDF OSHA Safety - Electrical Safety - Red Vector Protection is lost because it will not trip when the system's load has been exceeded. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 0000002557 00000 n 0000004921 00000 n 0000009628 00000 n c.Wood 0000022637 00000 n a) Door or window edges OSHA: Common Electrical Hazards Flashcards | Quizlet d.Adapter, What is a GFCI? Explosion [29 CFR 1926.416(a)(1)]. 2 0 obj 0000014257 00000 n The NEC C. Suggestions 2.Placed along a wall. The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. 0000007741 00000 n 1.When you are using electricity near water h|UnH}+i-. . Whether the hazard is posed by worn or damaged power tools or cords, improperly grounded tools or equipment, or the presence of standing water, it is the responsibility of the contractor to make sure the tools and equipment <>>> [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. 3.Loss of eyesight Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires -Damage to internal organs. -Voltage= a measure of electrical force. Before using the equipment, be sure that the ground wire: endobj 0 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. 1. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. OSHA: How Electricity Works Flashcards | Quizlet High humidity Question 2: Which of the following are ways employers must protect their employees on the workplace? [Flexible Cords and Power Tools]. -Wood. 0000001861 00000 n Co-workers provided CPR, but were unable to revive the victim. An 18-year-old worker at a construction site was electrocuted when he touched a light fixture while descending from a scaffold for his afternoon break. The auger then fell across the other worker, the 24-year-old victim. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). Use only extension cords that are marked with a designation code for hard or extra-hard usage. 2.Loose bolts Quiz Question 2: Which is acceptable when using powdered tools? 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. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. -Current= the movement of electrical charge. Frames of non-electrically driven elevator cars to which electric conductors are attached. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 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 *Effects are for voltages less than about 600 volts. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. In addition to contact with power lines, the top electrical hazards include: RZyd Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. Should Ajay use a GFCI? He plans to use it over a period of at least six months. 3.Loose nuts 0000419562 00000 n 1.Fingernails specifically addresses electrical protective devices. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). startxref Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 0000420277 00000 n Should he use an extension cord to power it? When used on the moon? 1.Is firmly connected BE SAFE! b. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: Electrical current travels through insulated ________. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. 0000007427 00000 n The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. Easy to identify OSHA Safety and Health Topics Page. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. 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.

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