which of the following are electrical hazards osha quizlet

1452 25 Looking for NFPA 70E Certification? Using tools and equipment that can contact power lines increases the risk. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. %PDF-1.5 Select the correct answer and then click on DONE. Most of the hydrides of Group 1A and Group 2A metals are ionic. Fire using a 30-amp breaker in a system with 15- or 20-amp receptacles. 0000004273 00000 n :$#k9BPnZ{Qqe/reKy,'ZlB# 2.Something to transport the electrical current -- A conductor. c. Inductive objects Potential hazards of electricity are preventable if you do which of the following listed below? The driver stopped the truck under the power line, and the victim, not realizing that the truck had moved, swung the boom to position the bucket behind the truck. How will she choose the correct cord? Draw a line from the item on the left that corresponds to the match on the right. 2.Using an aluminum ladder when the possibility exists for contact with electricity. Quiz Question 2: Which is acceptable when using powdered tools? 4.Cardiac arrest 1 0 obj d. heart attacks. d.Alert workers of any water in the area, GFCI is an acronym for: The auger then fell across the other worker, the 24-year-old victim. 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! De-energize and ground lines when working near them. 0000002195 00000 n lex has set up a mobile engine testing station in the maintenance area. HJ=S~68438IR/:VR C Y<7H*$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 One handle has a deadman's switch. 0000007116 00000 n In addition to contact with power lines, the top electrical hazards include: Power was supplied through two extension cords from a nearby residence. OSHA 29 CFR 1910, Subpart S . 2.Placed along a wall. Use non-conductive wood or fiberglass ladders when working near power lines. 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. 2.Loose bolts 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. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. 0000420887 00000 n !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. (B) Switch sticks. 2.Using extension cords or electrical tools properly. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> ( Wearing a baseball cap 4.Circuit breakers, When inspecting power tools, look for: Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. a.Shut off power within a fraction of a second 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. C. near water. 3.Something that causes current to flow through the . 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). What is the minimum clearance distance you must maintain from the power lines? Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 0000421627 00000 n 0000420564 00000 n xref The workers administered CPR to the victim, but to no avail. Which of the following part of you body can burn if you come in contact with electricity? Additionally, the ground prongs were missing from the two cords. -Damage to internal organs. 4,600. 3.The length of time the body is in contact with electricity Equipment used in manner prescribed. 0000004946 00000 n c.Wood 0000420277 00000 n HWMo#7v#h>6,Z4- [. Using a dry wood ladder when the possibility exists for contact with electricity. 0000022637 00000 n Select the correct answer and then click DONE. Short In Power Saw/Ungrounded Temporary Power Supply: On July 10, 1986, a 22-year-old carpenter was working at the construction site of large apartment complex, using a portable electric saw to construct the wooden framework of a laundry building. If you are touching any grounded material while using a power tool 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. Question 1: Which of the following is a danger of electricity? gYpV:+ d.A power tool, A GFCI is designed to: 3.Tears 1. q>NmnLNmb$"Iyx1bD9.~Ll. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. When it completes a circuit through the body. One hand drill was not grounded, and the other had no safety plate. 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 Explain the purpose and use of the MyPlate symbol. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 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. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Electricity will form a "path" or "loop". [Flexible Cords and Power Tools]. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). c.The outlet. 0000005520 00000 n 4.No, because he does not need to use an extension cord. Select the correct answer and then click DONE. 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 0000002479 00000 n 5 feet Determine duration, frequency, degree of exposure to hazards and physical stress. 1.Clench As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. 0000004274 00000 n Examples Of Electrical Hazards. 0000000816 00000 n 0000002122 00000 n endobj (D) None of the above. 0000017163 00000 n BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. 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. gYpV:+ Provide a safe path to earth ground for electricity. What is the primary purpose of properly grounding equipment? Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? 2.Flooding Protection is lost because it will not trip when the system's load has been exceeded. b. a) Door or window edges 3.Body tissue Identify the oxidizing and reducing agents. 1.Cuts (A) Shotgun sticks. No GFCI's were used. 3.Cramp She has an older drill with a steel housing and a 3-prong plug. 2.The person's physical condition Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). 3. Water Computers Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Look for overhead power lines and buried power line indicators. OSHA Safety and Health Topics Page. Draw a line from the item on the left that corresponds to the match on the right. Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Working with electricity can be dangerous. OSHA 29 CFR 1910.147 . It's okay to use extension cords with worn insulation, as . 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Which of the following factors determine how severe an electrical injury might be? 0000422244 00000 n Should he use an extension cord to power it? The victim was totally deaf in one ear and suffered diminished hearing in the other. Explosion. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: 0000010155 00000 n %PDF-1.4 % He plans to use it over a period of at least six months. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. It is important to note that NFPA 70E is a . d. No, because an extension cord would not provide enough power. 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. A) Identify; Castigate; C) Evaluate; D) Modify; 3. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . 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. 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. De-energizing Yes, because he will be using electricity near water. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? Frames of non-electrically driven elevator cars to which electric conductors are attached. Which group would be more accurate when used in an accelerating spaceship? To avoid injury or death, you must understand and recognize hazards. 3 0 obj Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. 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. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 0000002557 00000 n Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. The NEC C. Suggestions Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 2. 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. The ________ keeps the electricity on its intended path through the conductor. D. near other electrical equipment. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. This may damage your equipment and cause employee injuries. Select the choices that accurately define the common electrical term. 0000012944 00000 n View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Explosion Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. 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. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Using multi-receptacle boxes designed to be. These short objective type questions with answers are very important for competitive exams as well as Board exams. 0000006866 00000 n Ground all power supply systems, electrical circuits, and electrical equipment. Of the following choices, which are frequent electrical hazards 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. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. b.A fast-acting switch monitoring current flow a.Two-prong plug 0000003254 00000 n Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 4. trailer Besides personal bodily injury, what other electrical hazards can be found in the workplace? The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. c.Power lines Quiz Question 7: Which is not an insulator? This caused him to fall from the ladder and land in a puddle of water, still holding the saw. 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. 0000419562 00000 n a.Ground Fault Circuit Insulator 3. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. d) All of the above. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Which of the following are insulators of electricity? Select the correct answer and then click DONE. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Best practices with power lines include: He yelled for his co-workers to disconnect the power, which they did. A) 120v . The ground wire was not attached on the male end of the cord's plug. 0000002386 00000 n d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 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. 2.Grounding endobj a.20,000 volts c.Touching the motor Apply a warning tag to any defective tool and do not use it until the problem has been corrected. 3.Needs to be reset Check your employee's electrical safety knowledge through an electrical safety quiz. 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 Regarding hand protection employers should: A. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Select the correct answer and then click DONE. OSHA 29 CFR 1910, Subpart P . 3. [Power Tools]. 1.Damaged cover or insulation A co-worker disconnected the power cord to the saw, too late to save the victim. 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. Which of the following can be caused by exposure to an arc flash? c) Age 1. 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 I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Isolating, Power lines may be located underground. _5JKy. c.A measurement of electricity 0000421920 00000 n c.40,000 volts Select the correct answer and then click DONE. 128 0 obj <> endobj xref 128 26 0000000016 00000 n 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. a.Your thumb. b.Yes, because Bob was on . Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 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. 2 0 obj Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires lb MKS [29 CFR 1926.416(a)(1)]. 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: Select the correct answer and then click DONE. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 0000004208 00000 n endobj Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 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. 1.Is firmly connected 4.Flex 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 a. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. h|UnH}+i-. -Voltage= a measure of electrical force. 2. High humidity c.Three-prong plug d.Water, Other electrical hazards in the workplace include: Unless you know otherwise, assume that overhead lines are energized. s\A0W+ 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). Switch After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 30 days B. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 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. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. 0000108653 00000 n Other protective measures include guarding or insulating the lines. 3 0 obj 0000006893 00000 n 3. In which of the following workplace situations are you at risk for coming into contact with live electrical . Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 2. 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 . 0000002385 00000 n Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Visually inspect all electrical equipment before use. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream b.811 Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. b. 0000001646 00000 n Select the correct answer and then click DONE. Quiz Question 3: Power cords can be damaged by which of the following? (See NFPA 70E-2021 Article 130 and OSHA subpart S part . 0000008392 00000 n 2. Dust 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. View Answer Answer: 600v 4 . Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. 0000001116 00000 n What is the most common, non-fatal, electrical shock-related injury? 2. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. a.Supply power for tools or equipment on a temporary or short-term basis. 0000055319 00000 n d.Constructive objects, Select all answers that apply to the following statement and then click DONE. d.The body of the power tool. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A.

which of the following are electrical hazards osha quizlet 2023