which of the following are electrical hazards osha quizlet

Equipment used in manner prescribed. 2.Complete Quiz Question 1: Which of the following is not a category of electrical burns? These short objective type questions with answers are very important for competitive exams as well as Board exams. Improper Use of Extension and Flexible Cords. The victim was part of a crew that was constructing a concrete wall. 2.Grounding 0000002385 00000 n specifically addresses electrical protective devices. a.311 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. (E) a, b, and c. 2. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? Examples Of Electrical Hazards. a.Electricity a.20,000 volts He plans to use it over a period of at least six months. Use non-conductive wood or fiberglass ladders when working near power lines. Post warning signs. 1.Damaged cover or insulation 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. Quiz: Electrical Hazards. This is action is also known as creating or completing an electrical circuit. Question 2: Which of the following are ways . OSHA 29 CFR 1910, Subpart P . Electrical - Overview | Occupational Safety and Health Administration [, Use all equipment according to the manufacturer's instructions. <<7628BB2D46738F42B2FC6393656F4718>]>> If you are touching any grounded material while using a power tool Match the length from job to outlet. 0000004884 00000 n Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Should Ajay use a GFCI? 3. b.Metal Ajay needs to use a dewatering pump to drain standing water on a construction site. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. 0000110659 00000 n (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Select the correct answer and then click DONE. 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. 0000004965 00000 n Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 3.The length of time the body is in contact with electricity Out of several possible scenarios, the most likely was contact between the exposed wires of an extension cord and a screw that protruded from the receptacle, which had its face plate removed. 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. Fire 0000007427 00000 n The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. a. Gaseous matter endobj b.burns. Stay at least 10 feet away from overhead power lines. 4.Circuit breakers, When inspecting power tools, look for: 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. PDF C. Provides information about the hazards that electrical workers may experience as a part of their jobs. 1452 25 Use only cords, connection devices, and fittings that are equipped with strain relief. B. outdoors. 1.A source of electrical current to flow. 1.Fingernails 0000055319 00000 n 4. Is not painted over q>NmnLNmb$"Iyx1bD9.~Ll. d.Add more outlets. Select the correct answer and then click DONE. 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. 0000001731 00000 n Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. 2.Skin c.Guaranteed Fault Circuit Interrupter <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000004208 00000 n and more. 3.Draped over equipment. 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. Yes, because he will be using electricity near water. lex has set up a mobile engine testing station in the maintenance area. Examples of Equipment That Can Contact Power Lines. Then answer the questions below. Co-workers provided CPR, but were unable to revive the victim. This may damage your equipment and cause employee injuries. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. 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. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. De-energizing 3.Loss of eyesight 1. An employee was texturing a wall using an air compressor. 0000007741 00000 n No Ground-Fault Circuit Interrupters (GFCIs): A journeyman HVAC worker was installing metal duct work using a double-insulated drill connected to a drop light cord. b. 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. 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. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Select the correct answer and then click DONE. 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. H. 0000002403 00000 n When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Additional minimum clearance distance is required for power lines carrying over ________. b) By supplying GFCIs, or ground-fault circuit interrupters 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 2.Something to transport the electrical current -- A conductor. xYmo -ER/&@[D,_! 0000005716 00000 n No GFCI's were used. Lockout/tagout procedures. A co-worker disconnected the power cord to the saw, too late to save the victim. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. Regarding hand protection employers should: A. PDF Working Safely with Electricity - Occupational Safety and Health 0000012360 00000 n Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. PDF Electrical Safety - Occupational Safety and Health Administration Continually audit cords on-site. OSHA 10 General Industry Test Answer Key WALKING. endobj The ground wire was not attached on the male end of the cord's plug. High humidity a.Shut off power within a fraction of a second You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. c. Extend the reach of the power tool. 0000017336 00000 n View Answer Answer: 600v 4 . 4.The amount of current, An electrical burn may affect: d. Match the outlet prongs to the extension cord. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. 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). 1476 0 obj <>stream Select the correct answer and then click DONE. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) d) All of the above. 1.Clench What was Latoya's first mistake? 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. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 0000003771 00000 n <> Lx*jWP# /c2)|]NXqAx>=~'[ a.Yes, as it is a mobile engine testing station. OSHA will keep all identities confidential. xref Use only extension cords that are 3-wire type. Cardiac arrest or death - A result of electrical shock. He may have dropped the extension cord at the site and not heard the connector break. 0000024814 00000 n 0000009628 00000 n :$#k9BPnZ{Qqe/reKy,'ZlB# 4. The small electrical current enters his body through his left leg. <> (B) Switch sticks. Electrical Hazards - SSOE Group What is the output of the program in Exercise 17, if first = 26 and second = 8? % Identify the oxidizing and reducing agents. The source of the electricity was apparently a short in a receptacle, but examination revealed that the electrical equipment used by the contractor was in such poor condition that it was impossible to make a certain determination of the source of the short. Determine duration, frequency, degree of exposure to hazards and physical stress. 4. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q [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. 0000419562 00000 n 0000013999 00000 n 128 0 obj <> endobj xref 128 26 0000000016 00000 n Electrical Contractors Industry. Select the correct answer and then click on DONE. 0000004921 00000 n 1.The humidity of the environment 4 0 obj Electricity will form a "path" or "loop". 0000010603 00000 n The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. 0000003900 00000 n 0000000016 00000 n Additionally, the ground prongs were missing from the two cords. 4.No, because he does not need to use an extension cord. a.Supply power for tools or equipment on a temporary or short-term basis. 0000005042 00000 n trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream Electrical Safety Quiz - OSHA.net b. Deductive objects Power was supplied through two extension cords from a nearby residence. 3.Clear OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. How fast would the ball be moving at the moment of release? One handle has a deadman's switch. 1.Pain 1. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. The most dangerous place to use electrical equipment is? It's okay to use extension cords with worn insulation, as . 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. ( Which of these can be used as insulating live-line tools for electrical protection. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet 4.Broken. Underground electrical hazards are: A. 1 0 obj 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: Death. Which of the following can be caused by exposure to an arc flash? 0000421920 00000 n Protection is lost because it will not trip when the system's load has been exceeded. Quiz Question 2: Which is acceptable when using powdered tools? The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. 3.Tears 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. 0000001672 00000 n To avoid injury or death, you must understand and recognize hazards. Explain the purpose and use of the MyPlate symbol. 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. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 0000005632 00000 n %PDF-1.4 % Introduction To Osha Quiz Answers1) Which of the following activities Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. b.Not wearing insulating shoes or boots when she was handling electrical equipment Death is probable. Use tools and equipment according to the instructions included in their listing, labeling or certification. 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). Test your knowledge with our electrical safety quiz below. d.50,000 volts. Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy lb MKS 4.Must be replaced, Always use a GFCI: What is the most common, non-fatal, electrical shock-related injury? 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+ 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. 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 Use only equipment that is approved to meet OSHA standards. A. indoors. %PDF-1.5 0000001896 00000 n OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. b.Ground Fault Critical Interrupter (b) The same reaction can also be classified as a redox reaction. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Which of the following can be the result of electric shock? Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 1.Missing The victim was totally deaf in one ear and suffered diminished hearing in the other. Electric current cannot exist without an unbroken path to and from the conductor. When current travels through your body - Definition of electric shock. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 0000003603 00000 n On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow 0000018681 00000 n 0000420277 00000 n Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Which of the following are insulators of electricity? -If current passes through the body near the heart or brain. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s The source of the shocks -- the saw -- was not replaced. 1.Flammable liquids gYpV:+ OSHA 29 CFR 1910.147 . As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. To be safe, you must think about your job and plan for hazards. Since the outlet at the adjacent property had no socket for a ground prong, the extension cords were plugged into the outlet using an adapter, but the ground wire of the adapter was not grounded. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 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. 4.Running through doorways. Select the correct answer and then click DONE. gYpV:+ a.Two-prong plug 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. D 600v. B. c.A measurement of electricity c.falls. Used across walkways. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Explosion. [Flexible Cords and Power Tools]. 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. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 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 12 months C. 6 months D. Never Q23. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. RZyd 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: What type of burns are the result of current flowing through and exiting the body? c.Wood 4.Flex Electrical Safety Multiple Choice Questions and Answers for competitive exams. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. c.The outlet. PDF OSHA Safety - Electrical Safety - Red Vector You need to evaluate the situation you are in and assess your . Both could have prevented the accident from occuring. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. PDF ODULE 1 INTRODUCTION TO E SAFETY - Occupational Safety and Health OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet b.Shut off power within five minutes of the imbalance s\A0W+ If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 0000056642 00000 n 0000007116 00000 n 0000022637 00000 n vpfuI)],s Quiz Question 3: Power cords can be damaged by which of the following? B 208v. Intentionally creating a low-resistance path that connects to the earth. trailer When does electricity become hazardous to humans? Provide a safe path to earth ground for electricity. 4. 0000028595 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. *Effects are for voltages less than about 600 volts. c. Match the color of the tool to the color of the extension cord. A) Identify; Castigate; C) Evaluate; D) Modify; 3. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 2. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 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? Explosion Extension cords are used to: Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. endobj 2. True. 0000007694 00000 n Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Visually inspect all electrical equipment before use. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Work performed on an electrical system within reaching distance of energized components is_____work. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and 2.Using an aluminum ladder when the possibility exists for contact with electricity. 0000414648 00000 n 2.Using extension cords or electrical tools properly. 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. 0000005050 00000 n startxref Be sure equipment that has been shop fabricated or altered is in compliance. <> 0000004793 00000 n -Glass. 2.Placed along a wall. 0000108653 00000 n Question 4: Which of the following is a type of burn caused by electrical hazards? -Severe skin burns. 5 feet He yelled for his co-workers to disconnect the power, which they did. NFPA 70E: Standard for Electrical Safety in the Workplace 0000001495 00000 n 1. a. b) Staples What three things must be present for a current to flow through a conductor. [29 CFR 1926.416(a)(1)]. 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. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Select the correct answer and then click DONE. 0000001604 00000 n d. 20 feet. 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. 0000427811 00000 n Using multi-receptacle boxes designed to be. Question 2: Which of the following are ways employers must protect their employees on the workplace? 0000005520 00000 n Select the correct answer and then click DONE. 0000002733 00000 n 3.When you are using portable power tools a. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . The contact lasts for 5 seconds before someone is able to shut off the power. 3. 3.Vapor -Voltage= a measure of electrical force. 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. 0000002195 00000 n 182 0 obj <> endobj xref 182 41 0000000016 00000 n 0000002122 00000 n 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.Missing or broken path to ground. c.Touching the motor Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. Select the correct answer and then click DONE. hazard or that their employer is not following OSHA's rules. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Question 1: Each year, approximately __________ workers suffer from electricity related injuries. _.9u'2G_0 Ue]e"x5|Y 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. c) Establish and enact an assured equipment grounding conductor program (AEGCP) Best Practices with Power Lines 1. [, Do not modify cords or use them incorrectly. Working with electricity can be dangerous. d. Power outlets, ________ are anything that can transmit electrical current. Electrocution. Visually inspect all electrical equipment before use. What is the minimum clearance distance you must maintain from the power lines? Select the choices that accurately define the common electrical term. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include:

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