using a 30-amp breaker in a system with 15- or 20-amp receptacles. No GFCI's were used. <<7628BB2D46738F42B2FC6393656F4718>]>> 2.Using an aluminum ladder when the possibility exists for contact with electricity. Use only equipment that is approved to meet OSHA standards. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. a.311 stream In which of the following workplace situations are you at risk for coming into contact with live electrical . OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Electrical Contractors Industry. d.Metal, Over half of all deaths caused by electricity result from contact with ________. The auger then fell across the other worker, the 24-year-old victim. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 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. High humidity d. Power outlets, ________ are anything that can transmit electrical current. Underground electrical hazards are: A. What three things must be present for a current to flow through a conductor. 0000021516 00000 n View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 0000005734 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. Which of the following can be caused by exposure to an arc flash? Apparently, his hand contracted and he was "locked" to the saw. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. 5.Twitch, Electrical shock may result in: What factors determine the severity of Dirk's injuries? OSHA 29 CFR 1910, Subpart P . % 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. -Conductor= permits the free flow of electricity. a) Door or window edges De-energizing (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) The NEC C. Suggestions Unless you know otherwise, assume that overhead lines are energized. 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. 1476 0 obj <>stream [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. Electricity will form a "path" or "loop". %PDF-1.4 % d.Constructive objects, Select all answers that apply to the following statement and then click DONE. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Freeze 2 0 obj OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Be sure equipment that has been shop fabricated or altered is in compliance. 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 normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Death. xYmo -ER/&@[D,_! B. C. near water. Ground all power supply systems, electrical circuits, and electrical equipment. 1. D. Have an ANSI sticker and an expiration date. The source of the shocks -- the saw -- was not replaced. When it completes a circuit through the body. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? 0000005050 00000 n 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. c.Touching the motor . d.Alert workers of any water in the area, GFCI is an acronym for: 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. 128 0 obj <> endobj xref 128 26 0000000016 00000 n b.Rod Select the correct answer and then click DONE. 2.Using extension cords or electrical tools properly. Cardiac arrest or death - A result of electrical shock. A 120v. Electrocution. 0000005716 00000 n 2. 0000022637 00000 n Select the correct answer and then click DONE. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. 0000056642 00000 n <>>> gYpV:+ 0000002385 00000 n Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. d) All of the above. . he most common shock-related injuries are: 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. 4.Must be replaced, Always use a GFCI: DHPP0MHLHIPPXc f2LXL"dgJ:@ ys`llr-shH,Y@Z 23J0a_TXD;X,;&0i,i&f&T8h R/ v`,l. 440!2D9482q={LPXs +( endstream endobj 129 0 obj <> endobj 130 0 obj <> endobj 131 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageB]/ExtGState<>>> endobj 132 0 obj <> endobj 133 0 obj <> endobj 134 0 obj <> endobj 135 0 obj <>stream 1.Damaged cover or insulation Quiz Question 7: Which is not an insulator? 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. 0000007116 00000 n startxref 1452 25 0000002557 00000 n 1.Missing 0000414648 00000 n 0000110659 00000 n b.Yes, because Bob was on . 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 The auger has a one-quarter horsepower motor encased in a metal housing with two handles. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 0000000816 00000 n trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. The small electrical current enters his body through his left leg. 3.ack of ground fault protection. It is important to note that NFPA 70E is a . Select the correct answer and then click DONE. 0000004965 00000 n 2.Skin d.Water, Other electrical hazards in the workplace include: Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. Quiz Question 3: Power cords can be damaged by which of the following? Looking for NFPA 70E Certification? 2. 4. De-energize and ground lines when working near them. 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. Used across walkways. a.20,000 volts a.Ground Fault Circuit Insulator Electric current cannot exist without an unbroken path to and from the conductor. 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: Dust 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. What is the most common, non-fatal, electrical shock-related injury? Wearing a baseball cap 1. Electrical current travels through insulated ________. 0000004444 00000 n 0000420564 00000 n *Effects are for voltages less than about 600 volts. (D) None of the above. (B) Switch sticks. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Burns. trailer After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. stream %%EOF Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q Best practices with power lines include: Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Both could have prevented the accident from occuring. 3. 3. 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. [Flexible Cords and Power Tools]. Before using the equipment, be sure that the ground wire: -Wood. These short objective type questions with answers are very important for competitive exams as well as Board exams. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 2.Is working properly ZR)!=w|; @uT C0? Then answer the questions below. c.Absorb any water around the area 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. a.Two-prong plug lb MKS Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. d.Add more outlets. 4.Flex If a worker has been retaliated against for using their rights, they specifically addresses electrical protective devices. 0000017336 00000 n 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 Extension cords had poor splices, no grounds, and reversed polarity. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. Should he use an extension cord to power it? 1.The humidity of the environment You should? c.Gasoline Which of the following can be the result of electric shock? When current travels through your body - Definition of electric shock. The factors that determine the severity of an electrical injury include: 4. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. [, Do not modify cords or use them incorrectly. Determine duration, frequency, degree of exposure to hazards and physical stress. [29 CFR 1926.416(a)(1)]. Extension cords may become a trip hazard when: Provide a safe path to earth ground for electricity. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 2.Loss of muscle control The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). 0000005520 00000 n 0000001731 00000 n The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Stay at least 10 feet away from overhead power lines. 0000005632 00000 n 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Quiz Question 2: Which is acceptable when using powdered tools? c) Age 0000002122 00000 n To be safe, you must think about your job and plan for hazards. 0000003640 00000 n Use tools and equipment according to the instructions included in their listing, labeling or certification. Other protective measures include guarding or insulating the lines. 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). Which group would be more accurate when used in an accelerating spaceship? 5. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. <> 0000068035 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. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. The accident site was wet; also, humidity was high and the victim was sweating. endobj 1 0 obj 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 0000001861 00000 n d.50,000 volts. What type of burns are the result of current flowing through and exiting the body? Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. The ground wire was not attached on the male end of the cord's plug. 1. Does the fall qualify as an electrical accident? Equipment used in manner prescribed. Explain the purpose and use of the MyPlate symbol. 0000002403 00000 n 0000003413 00000 n 0000420887 00000 n 1.Is faulty 3.Something that causes current to flow through the . 1.Cuts An employee was texturing a wall using an air compressor. As she is adding in the chemicals, her hand touches the motor and it becomes energized. 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? 0000420277 00000 n 1.When you are using electricity near water OSHA 29 CFR 1910, Subpart S . Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. c.Wood If you are touching any grounded material while using a power tool Muscular contraction and nerve damage occur; death likely. Overview. 0000421920 00000 n Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. xref b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 0000018681 00000 n Contact utilities for buried power line locations. 1452 0 obj <> endobj 0000089142 00000 n Question 1: Each year, approximately __________ workers suffer from electricity related injuries. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. 0000001495 00000 n Is split Regarding hand protection employers should: A. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . OSHA Safety and Health Topics Page. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Bob is asked to repair some overhead wiring, requiring the use a ladder. 0000003715 00000 n HWMo#7v#h>6,Z4- 0000012360 00000 n The following are electrical hazards: Shock. b.811 b.A fast-acting switch monitoring current flow [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. Select the correct answer and then click DONE. Improper Use of Extension and Flexible Cords. c. Extend the reach of the power tool. 3.Cramp D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). c. Match the color of the tool to the color of the extension cord. a) Ensure overhead power line safety 0000001604 00000 n 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 Ajay needs to use a dewatering pump to drain standing water on a construction site. Select the correct answer and then click DONE. 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. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. a.related to muscle damage. 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. Before work began, the company safety director made sure that insulated line hoses were placed over sections of the the power line near the jobsite and that a safety clearance zone was marked off for arriving cement trucks. 4.Running through doorways. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. s\A0W+ Besides personal bodily injury, what other electrical hazards can be found in the workplace? Which of the following injuries can occur when muscles flex or twitch from an electrical shock? <> 3.When you are using portable power tools Electrical Safety Multiple Choice Questions and Answers for competitive exams. Which of the following are conductor of electricity? Additionally, the ground prongs were missing from the two cords. b. Deductive objects 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. A. wrap tape around the damaged spot to prevent electrical shocks. OSHA 10 General Industry Test Answer Key WALKING. 1.Fingernails 0000419562 00000 n Question 2: Which of the following are ways .
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