0000002385 00000 n 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). 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. _.9u'2G_0 Ue]e"x5|Y 2. In which of the following workplace situations are you at risk for coming into contact with live electrical . The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. Use non-conductive wood or fiberglass ladders when working near power lines. 3. 2. xref 4,600. d.Water, Other electrical hazards in the workplace include: 0000007464 00000 n 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. 0000004965 00000 n 0000003413 00000 n 3. Bob is asked to repair some overhead wiring, requiring the use a ladder. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. Ground all power supply systems, electrical circuits, and electrical equipment. b.Rod Is not broken, Question Text: Electrical tools should be grounded with a(n)________. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs 0000010603 00000 n Outlets 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. Lx*jWP# /c2)|]NXqAx>=~'[ Water The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 3 0 obj b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 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. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 0000001495 00000 n Electricity becomes hazardous when it takes an unintended path to complete the ________. To avoid injury or death, you must understand and recognize hazards. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Using tools and equipment that can contact power lines increases the risk. 0000055319 00000 n Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. b.Not wearing insulating shoes or boots when she was handling electrical equipment 1.Flammable liquids What is the primary purpose of properly grounding equipment? This is action is also known as creating or completing an electrical circuit. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Ground all exposed metal parts of equipment. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. Both could have prevented the accident from occuring. 0000089142 00000 n q>NmnLNmb$"Iyx1bD9.~Ll. 0000004793 00000 n 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. 3.The length of time the body is in 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: Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. . True. What is the most common, non-fatal, electrical shock-related injury? a.A small current Regarding hand protection employers should: A. :$#k9BPnZ{Qqe/reKy,'ZlB# 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. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream 0000002122 00000 n b.811 Electrical Contractors Industry. When does electricity become hazardous to humans? Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Extension cords had poor splices, no grounds, and reversed polarity. 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 endobj Select the correct answer and then click DONE. 0000001814 00000 n Select the correct answer and then click DONE. [, Do not modify cords or use them incorrectly. -Current= the movement of electrical charge. 3.Something that causes current to flow through the . b) By supplying GFCIs, or ground-fault circuit interrupters 4.The amount of current, An electrical burn may affect: Get All Answers to OSHA 30 Construction Final Exam. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Wearing a baseball cap 0000022637 00000 n If you are touching any grounded material while using a power tool Extension cords are used to: A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. The workers had removed their shirts and were sweating. 3. 0000420564 00000 n Yes, because he will be using electricity near water. 1.Missing or broken path to ground. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Before using the equipment, be sure that the ground wire: OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Stay at least 10 feet away from overhead power lines. Using equipment outdoors that is labeled for use only in dry, indoor locations. 0000002479 00000 n Arc Flash. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. c. Inductive objects 4.Cardiac arrest [Flexible Cords and Power Tools]. Use only extension cords that are marked with a designation code for hard or extra-hard usage. trailer Explain the purpose and use of the MyPlate symbol. Equipment used in manner prescribed. 3.Loose nuts d.Alert workers of any water in the area, GFCI is an acronym for: _5JKy. d. 20 feet. Draw a line from the item on the left that corresponds to the match on the right. Which of the following are conductor of electricity? B. 0000001861 00000 n B 208v. Quiz Question 2: Which is acceptable when using powdered tools? High humidity One handle has a deadman's switch. 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. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 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. a) Ensure overhead power line safety Additionally, the ground prongs were missing from the two cords. Looking for NFPA 70E Certification? HWMo#7v#h>6,Z4- Select the correct answer and then click DONE. A co-worker disconnected the power cord to the saw, too late to save the victim. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. He plans to use it over a period of at least six months. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. True. Which of these can be used as insulating live-line tools for electrical protection. <>>> 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 2. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t A 120v. Quiz Question 7: Which is not an insulator? 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. Muscular contraction and nerve damage occur; death likely. 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. -Voltage= a measure of electrical force. How fast would the ball be moving at the moment of release? 0000000016 00000 n % 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. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Select the correct answer and then click DONE. The victim was part of a crew that was constructing a concrete wall. stream 4.Must be replaced, Always use a GFCI: Question 2: Which of the following are ways employers must protect their employees on the workplace? c. No, because the electricity is needed on a long-term basis. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? Using multi-receptacle boxes designed to be. 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. %%EOF 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. It's okay to use extension cords with worn insulation, as . Use only cords, connection devices, and fittings that are equipped with strain relief. 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. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. a.Two-prong plug -Damage to internal organs. The floor is covered in water and she is barefoot. This standard also includes safe work practices for employees performing other work activities that can expose them to electrical hazards as well as safe work practices for the following: (1) Installation of conductors and equipment that connect to the supply of electricity (2) Installations used by the electric utility, such as office . 3.Loss of eyesight Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? c) Establish and enact an assured equipment grounding conductor program (AEGCP) How might this event affect the ability of animals to obtain energy to live? The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Fire 0000004274 00000 n Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Electrocution. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 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 <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> a. Gaseous matter 0000002386 00000 n 3.Needs to be reset 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. <> c.Touching the motor 4. [. 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. 4.Circuit breakers, When inspecting power tools, look for: Select the correct answer and then click DONE. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 2.Using extension cords or electrical tools properly. 1. 0000420277 00000 n Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . (D) None of the above. 0000414648 00000 n (C) Hot sticks. [, Use all equipment according to the manufacturer's instructions. 4.Flex D. Have an ANSI sticker and an expiration date. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. 1.Missing Which of the following part of you body can burn if you come in contact with electricity? a.Yes, as it is a mobile engine testing station. (E) a, b, and c. 2. Improper Use of Extension and Flexible Cords. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 2. 2.Loose bolts Death is probable. OSHA 29 CFR 1910, Subpart S . 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. OSHA 29 CFR 1910.147 . b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. View Answer Answer: 600v 4 . Select the correct answer and then click DONE. 0000002150 00000 n Electricity will form a "path" or "loop". vpfuI)],s You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 2.Something to transport the electrical current -- A conductor. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. What factors determine the severity of Dirk's injuries? Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. b. c.The outlet. Easy to identify 0000018681 00000 n Dust Does the fall qualify as an electrical accident? 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 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ 0000013716 00000 n Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. Freeze 1. What do tripped circuit breakers and blown fuses indicate? Question 4: Which of the following is a type of burn caused by electrical hazards? When current travels through your body - Definition of electric shock. b.Electrical tools 0000006893 00000 n hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Electrical safety quiz answers are given below. 0000012944 00000 n As she is adding in the chemicals, her hand touches the motor and it becomes energized. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 1 0 obj d. Match the outlet prongs to the extension cord. 4. a.311 The source of the shocks -- the saw -- was not replaced. 1.Is faulty c.Guaranteed Fault Circuit Interrupter 2 0 obj What was Latoya's first mistake? 0000010155 00000 n specifically addresses electrical protective devices. De-energize and ground lines when working near them. -Severe skin burns. 1.Is firmly connected Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. Isolating, Power lines may be located underground. Select the choices that accurately define the common electrical term. a. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. The victim provided a path to ground and was electrocuted. 3.When you are using portable power tools 1.The humidity of the environment Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Electrical hazards are life threatening incidents that could happen due to electricity. . 0000014257 00000 n To verify an electrically safe work condition, all these conditions should be confirmed EXCEPT: Effective training of employees includes all of the following EXCEPT: How to operate power tools in wet conditions. (3,2,1), (5,4,3). 2.Skin The accident site was wet; also, humidity was high and the victim was sweating. HJ=S~68438IR/:VR C Y<7H*$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 2.Grounding a.Extension cords The modification of the plug was not an intended use or prescribed by the manufacturer. b.A fast-acting switch monitoring current flow 3.Cramp Working with electricity can be dangerous. d.Metal, Over half of all deaths caused by electricity result from contact with ________. 0000005520 00000 n Which of the following are insulators of electricity? a.20,000 volts b.Ground Fault Critical Interrupter How will she choose the correct cord? The auger has a one-quarter horsepower motor encased in a metal housing with two handles. b.30,000 volts The workers administered CPR to the victim, but to no avail. 0000005632 00000 n 1.Fingernails [Power Tools]. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. Quiz Question 3: Power cords can be damaged by which of the following? 3.Vapor Draw a line from the item on the left that corresponds to the match on the right. The contact lasts for 5 seconds before someone is able to shut off the power. 3. 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. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011.