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3.ack of ground fault protection. 0000002403 00000 n d. 411, You are working with a 10-foot section of a conductive pipe near power lines. 0000414648 00000 n 2.Using extension cords or electrical tools properly. gYpV:+ 1 0 obj To be safe, you must think about your job and plan for hazards. 0000005406 00000 n As she is adding in the chemicals, her hand touches the motor and it becomes energized. trailer 4. The laborer, who was wearing leather gloves, received an electric shock and dropped the wire reinforcement, which fell across the power line and simultaneously contacted the metal rail of the scaffold, energizing the entire scaffold. She finds several available in the shop. Use tools and equipment according to the instructions included in their listing, labeling or certification. 1.Missing No GFCI's were used. a.Extension cords A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 2.Complete 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 0000427811 00000 n 0000005716 00000 n D. Have an ANSI sticker and an expiration date. 3.Loose nuts hazard or that their employer is not following OSHA's rules. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . 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. Safe operation of hand and portable powered tools and other hand-held equipment. Remove cords from receptacles by pulling on the plugs, not the cords. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. . b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. b+t6W' te+.W_{8u7Dt@1c. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy Underground electrical hazards are: A. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. 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. 0000004965 00000 n Select the correct answer and then click DONE. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet 0000005042 00000 n c.Wood Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. Question 1: Which of the following is a danger of electricity? trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Which of these can be used as insulating live-line tools for electrical protection. The contact lasts for 5 seconds before someone is able to shut off the power. Electric current cannot exist without an unbroken path to and from the conductor. The accident site was wet; also, humidity was high and the victim was sweating. B. outdoors. -Damage to internal organs. 4 0 obj An examination revealed that the spring, cover plate, and part of the melamine casing were missing from the face of the female connector (the spring and some melamine fragments were found at the accident site). 3. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Besides personal bodily injury, what other electrical hazards can be found in the workplace? 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. RZyd c.Guaranteed Fault Circuit Interrupter 0000057373 00000 n Some of the causes of these are live wire s that may be lying around, overloaded circuits, explosions that are caused by flammable objects, etc. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 0000014257 00000 n Quiz Question 3: Power cords can be damaged by which of the following? Additionally, the ground prongs were missing from the two cords. endobj Additionally, the ground prong was missing and there was no GFCI protection. HWMo#7v#h>6,Z4- Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. 4.Broken. PDF Electrical Safety - Occupational Safety and Health Administration This may damage your equipment and cause employee injuries. Wearing a baseball cap % d.A power tool, A GFCI is designed to: 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). %PDF-1.4 % 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. 0000421627 00000 n 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. c) Age The source of the shocks -- the saw -- was not replaced. Quiz Question 7: Which is not an insulator? H. 0000004921 00000 n Do not remove ground prongs from cord- and plug-connected equipment or extension cords. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. What three things must be present for a current to flow through a conductor. b.Ground Fault Critical Interrupter d.Water, Other electrical hazards in the workplace include: a.20,000 volts 0000003715 00000 n HJ=S~68438IR/:VR C Y<7H*$F>ya)N1bTa+'OdzydV9QS]b{}(=q?pH,mt8{Ag ]wp?2N$AfnhBL!jV=6ho)5jA8H`Bkh{T[v\G%b|4| Eo*cF ]TBGjB[r6)WzCkQ;Bx(]*JG;&o0TV.P=s4Gs(&e~}j76,-6at$]r**-I!o66PqK.z "*D Which of the following factors determine how severe an electrical injury might be? Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. 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. PDF C. 0000420887 00000 n 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! -Glass. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. If a defective power tool gives you an electric shock, how might your muscles react? Use non-conductive wood or fiberglass ladders when working near power lines. 21 Examples Of Electrical Hazards - HSEWatch True. b.burns. 0000003771 00000 n A measure of the energy of motion of the particles in a substance is its _____. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. The modification of the plug was not an intended use or prescribed by the manufacturer. 1.Clench . 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: [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. Additional minimum clearance distance is required for power lines carrying over ________. 0000004274 00000 n 1. Overview. Which of the following part of you body can burn if you come in contact with electricity? 0000005632 00000 n <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. Use only extension cords that are marked with a designation code for hard or extra-hard usage. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Using tools and equipment that can contact power lines increases the risk. Check your employee's electrical safety knowledge through an electrical safety quiz. Is the west coast of Africa a plate boundary? 0 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 What type of burns are the result of current flowing through and exiting the body? 3.Vapor Select the correct answer and then click DONE. 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. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 1476 0 obj <>stream Electrocution. 1.Is firmly connected A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. Select the correct answer and then click DONE. Equipment used in manner prescribed. 0000004208 00000 n Electrical current travels through insulated ________. 2.Skin OSHA 30 Construction Final Test Answer Key - Studylib 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: OSHA 10 General Industry Test Answer Key WALKING. 3.Something that causes current to flow through the . A) 120v . OSHA 30 Module 6: Personal Protective Equipme, OSHA 30 - Module 16: Recordkeeping & Reporting, OSHA 30 - Module 18: Safety and Health Progra, OSHA 30 - Module 11: Welding, Cutting and Bra, CRJ 200 Limitations (Official-ish) - MODDED (, SERE 100.2 Level A SERE (J3TA-US1329) (Civili, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, E. Russell Johnston, Ferdinand Beer, Phillip Cornwell. Select the correct answer and then click DONE. NFPA 70E: Standard for Electrical Safety in the Workplace 5.Twitch, Electrical shock may result in: 3 0 obj specifically addresses electrical protective devices. Extension cords had poor splices, no grounds, and reversed polarity. 0000002385 00000 n As he began to pull away, the crew supervisor yelled to him, asking if the crew could use his water hose to wash out their cement bucket suspended from the crane. b.The tool's power cord. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 1. Which group would be more accurate when used in an accelerating spaceship? Question 1: Which of these is a type of Ground Fault Circuit Adapter? c.911 1. Question 2: Which of the following is NOT a category of electrical burns? 0000421920 00000 n 0000004273 00000 n 0000089142 00000 n 0000056642 00000 n 3.Clear When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. Select the correct answer and then click DONE. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [29 CFR 1926.404(f)(7)(v)]: Frames and tracks of electrically operated cranes. You need to evaluate the situation you are in and assess your . Which of the following are conductor of electricity? OSHA: How Electricity Works Flashcards | Quizlet Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 4. Quiz Question 1: Which of the following is not a category of electrical burns? 0000420564 00000 n 0000006866 00000 n 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. ZR)!=w|; @uT C0? stream 0000015549 00000 n Dust %%EOF 1. Select the correct answer and then click DONE. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Electrical Hazards - SSOE Group 0000003900 00000 n 0000003603 00000 n Then answer the questions below. h|UnH}+i-. a.Yes, as it is a mobile engine testing station. The floor is covered in water and she is barefoot. The NEC C. Suggestions a.311 Electrical safety quiz answers are given below. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. CCOHS: Electrical Safety - Basic Information Best practices with power lines include: 0000000016 00000 n Death is probable. 0000003413 00000 n Bob is asked to repair some overhead wiring, requiring the use a ladder. 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. Using cords or tools with worn insulation or exposed wires. a. 1. Ajay needs to use a dewatering pump to drain standing water on a construction site. Using multi-receptacle boxes designed to be. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 0000068035 00000 n Select the correct answer and then click DONE. OSHA 29 CFR 1910.147 . 3.Draped over equipment. c. Extend the reach of the power tool. d.Metal, Over half of all deaths caused by electricity result from contact with ________. OSHA will keep all identities confidential. 0000007116 00000 n 0000004946 00000 n 1.Damaged cover or insulation Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp Question 4: Which of the following is a type of burn caused by electrical hazards? BE SAFE! The workers administered CPR to the victim, but to no avail. 0000005520 00000 n a.A small current Which of the following injuries can occur when muscles flex or twitch from an electrical shock? What are the 4 main type of hazards? [Ultimate Guide!] Using a dry wood ladder when the possibility exists for contact with electricity. 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 b.811 4.No, because he does not need to use an extension cord. Electrical Contractors Industry. 0000001861 00000 n 0000006893 00000 n 4.The amount of current, An electrical burn may affect: Electrical hazards are life threatening incidents that could happen due to electricity. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) b. Deductive objects [, Do not modify cords or use them incorrectly. Should he use an extension cord to power it? Electrical Safety Assessment Quiz Answers | ISHN Extension cords are used to: b.Rod 3.When you are using portable power tools 3 0 obj He may have dropped the extension cord at the site and not heard the connector break. The auger then fell across the other worker, the 24-year-old victim. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. How fast would the ball be moving at the moment of release? One hand drill was not grounded, and the other had no safety plate. <> Freeze 0000002150 00000 n c.A measurement of electricity Most of the hydrides of Group 1A and Group 2A metals are ionic. 3.Loss of eyesight 0000108920 00000 n True. 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+ !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 0000001116 00000 n A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. Work performed on an electrical system within reaching distance of energized components is_____work. 2.Loose screws The following are electrical hazards: Shock. Explosion 2.Flooding To avoid injury or death, you must understand and recognize hazards. C. near water. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream b.Yes, because Bob was on . 2.Grease Lockout/tagout procedures. Electrical Safety Quiz - OSHA.net _.9u'2G_0 Ue]e"x5|Y PDF ODULE 1 INTRODUCTION TO E SAFETY - Occupational Safety and Health Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 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. Explain the purpose and use of the MyPlate symbol. -Conductor= permits the free flow of electricity. 0000028595 00000 n Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 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. 3. Select the correct answer and then click DONE. C 277v. c.Absorb any water around the area Select the correct answer and then click DONE. 3. d.Add more outlets. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. c. Match the color of the tool to the color of the extension cord. 0000001495 00000 n 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. 128 0 obj <> endobj xref 128 26 0000000016 00000 n Improper Use of Extension and Flexible Cords. c.Three-prong plug 3.Body tissue Best Practices with Power Lines Quiz OSHA 30 - Best 0000108653 00000 n 1.The humidity of the environment Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) Determine duration, frequency, degree of exposure to hazards and physical stress. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l