0000002733 00000 n Select the correct answer and then click DONE. c.Three-prong plug When current travels through your body - Definition of electric shock. Intentionally creating a low-resistance path that connects to the earth. Looking for NFPA 70E Certification? Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. 4.Cardiac arrest 0000013999 00000 n Do not remove ground prongs from cord- and plug-connected equipment or extension cords. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 1. 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. If a worker has been retaliated against for using their rights, they Best practices with power lines include: lb MKS 0000007694 00000 n A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. endobj The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . PDF Working Safely with Electricity - Occupational Safety and Health 4.The amount of current, An electrical burn may affect: Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? The following are electrical hazards: Shock. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. 4. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q a. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 0000008392 00000 n 0000002876 00000 n d. heart attacks. In which of the following workplace situations are you at risk for coming into contact with live electrical . 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. Use only equipment that is approved to meet OSHA standards. 2.Grease What three things must be present for a current to flow through a conductor. Electric current cannot exist without an unbroken path to and from the conductor. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. b.Rod Easy to identify %PDF-1.4 % Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 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? Select the correct answer and then click DONE. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 1.Fingernails OSHA 29 CFR 1910, Subpart P . 0000018681 00000 n She finds several available in the shop. Quiz Question 2: Which is acceptable when using powdered tools? 0000002479 00000 n d.50,000 volts. a.Your thumb. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. b.Yes, because Bob was on . <> Select the correct answer and then click DONE. Extension cords are used to: 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 1.Missing CCOHS: Electrical Safety - Basic Information 0000414648 00000 n 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. specifically addresses electrical protective devices. a.Yes, as it is a mobile engine testing station. 0000007427 00000 n A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Death. 2.Is working properly Supply power for tools or equipment on a long-term basis. 0000010155 00000 n 5. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB lex has set up a mobile engine testing station in the maintenance area. 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. 0000006893 00000 n 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: 0000108653 00000 n Question 2: Which of the following are ways . 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: c. Extend the reach of the power tool. Death is probable. 3.The length of time the body is in contact with electricity 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. Best Practices with Power Lines Quiz OSHA 30 - Best 2.Grounding OSHA 29 CFR 1910, Subpart S . (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 3 0 obj Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. 1.The humidity of the environment 0000420887 00000 n 0000001646 00000 n Both could have prevented the accident from occuring. 3.Something that causes current to flow through the . Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Use only extension cords that are 3-wire type. She has an older drill with a steel housing and a 3-prong plug. Working with electricity can be dangerous. 0000015549 00000 n Then answer the questions below. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream What is the primary purpose of properly grounding equipment? OSHA 29 CFR 1910.147 . b) By supplying GFCIs, or ground-fault circuit interrupters Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. 2. 3. When an electric shock occurs, your muscles may: 2.The person's physical condition 2. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. 0000003771 00000 n The victim was part of a crew that was constructing a concrete wall. <> Switch Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. 0000002557 00000 n [29 CFR 1926.416(a)(1)]. 0000005406 00000 n gYpV:+ [. vpfuI)],s Question 1: Each year, approximately __________ workers suffer from electricity related injuries. High humidity Lockout/tagout procedures. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. d. Match the outlet prongs to the extension cord. Select the correct answer and then click DONE. xref 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. The modification of the plug was not an intended use or prescribed by the manufacturer. Which of these can be used as insulating live-line tools for electrical protection. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 1.Is firmly connected OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 182 0 obj <> endobj xref 182 41 0000000016 00000 n In addition to contact with power lines, the top electrical hazards include: Equipment used in manner prescribed. 2. 0000005520 00000 n xYmo -ER/&@[D,_! %%EOF 0000000816 00000 n Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. It's okay to use extension cords with worn insulation, as . You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 3. a.related to muscle damage. 0000001672 00000 n qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? % Select the correct answer and then click DONE. 0000003254 00000 n 2.Complete Examples of Equipment That Can Contact Power Lines. 1. An employee was texturing a wall using an air compressor. 1452 25 startxref d.Water, Other electrical hazards in the workplace include: ( 1. What factors determine the severity of Dirk's injuries? The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 1 0 obj 0000427811 00000 n Which of the following factors determine how severe an electrical injury might be? Quiz Question 3: Power cords can be damaged by which of the following? D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ Regarding hand protection employers should: A. 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. 2.Using an aluminum ladder when the possibility exists for contact with electricity. 2. 0000011060 00000 n Use only extension cords that are marked with a designation code for hard or extra-hard usage. d.Add more outlets. The following references aid in recognizing hazards associated with electrical work. Select the correct answer and then click DONE. What is the minimum clearance distance you must maintain from the power lines? d.Metal, Over half of all deaths caused by electricity result from contact with ________. Should Ajay use a GFCI? 4,600. He may have dropped the extension cord at the site and not heard the connector break. 3 0 obj d. 20 feet. endobj Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 3.Cramp Post warning signs. 0000004965 00000 n Frames of non-electrically driven elevator cars to which electric conductors are attached. 0000110659 00000 n 0000017163 00000 n 4.Broken. -Grounding= a conductive connection to the earth which acts as a protective measure. Overview. Which of the following are insulators of electricity? Select the correct answer and then click DONE. 2.Skin c.Power lines 4 0 obj 0000003603 00000 n Draw a line from the item on the left that corresponds to the match on the right. Select the correct answer and then click DONE. 0000028595 00000 n 1 0 obj 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. 0000001814 00000 n a.Shut off power within a fraction of a second 1.Pain 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. 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. (3,2,1), (5,4,3). 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 . OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? d.A power tool, A GFCI is designed to: A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 1.Damaged cover or insulation 0000420277 00000 n Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s c.Touching the motor The workers administered CPR to the victim, but to no avail. c.911 -Damage to internal organs. 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). 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. What is the output of the program in Exercise 17, if first = 26 and second = 8? B. outdoors. The contact lasts for 5 seconds before someone is able to shut off the power. Use non-conductive wood or fiberglass ladders when working near power lines. The auger then fell across the other worker, the 24-year-old victim. 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: d) All of the above. Match the length from job to outlet. Apparently, his hand contracted and he was "locked" to the saw. 0000002122 00000 n The victim was totally deaf in one ear and suffered diminished hearing in the other. 0000000016 00000 n Additionally, the ground prongs were missing from the two cords. stream hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 4. b.Ground Fault Critical Interrupter Question 4: Which of the following is a type of burn caused by electrical hazards? b.Not wearing insulating shoes or boots when she was handling electrical equipment Freeze 5 feet Select the correct answer and then click DONE. c) Age Explosion 0000003900 00000 n Electrocution. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? b.30,000 volts Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. a.Extension cords 1.A source of electrical current to flow. he most common shock-related injuries are: 2.Using extension cords or electrical tools properly. %PDF-1.5 3.Loss of eyesight Using equipment outdoors that is labeled for use only in dry, indoor locations. Other protective measures include guarding or insulating the lines. PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. <<7628BB2D46738F42B2FC6393656F4718>]>> Select the correct answer and then click DONE. %PDF-1.4 % The most dangerous place to use electrical equipment is? Contact utilities for buried power line locations. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. and more. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. 0000003413 00000 n 1. 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. %PDF-1.5 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. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. . Using multi-receptacle boxes designed to be. Fire 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. 3. 1. 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. -Current= the movement of electrical charge. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 2. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. Which group would be more accurate when used in an accelerating spaceship? 0000002385 00000 n NFPA 70E: Standard for Electrical Safety in the Workplace 0000006866 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. _5JKy. 0000014257 00000 n Which of the following are electrical hazards? - Brainly.com 3.Loose nuts Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires HWMo#7v#h>6,Z4- PDF C. d.The body of the power tool. OSHA: How Electricity Works Flashcards | Quizlet c.Absorb any water around the area 4.Circuit breakers, When inspecting power tools, look for: OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. c. Inductive objects 4. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. 2. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. a.Standing in water Co-workers provided CPR, but were unable to revive the victim. -If current passes through the body near the heart or brain. Question 3: A/an ____________ is a unit of measurement for electrical resistance. D. Have an ANSI sticker and an expiration date. You need to evaluate the situation you are in and assess your . 0000057373 00000 n Study with Quizlet and memorize flashcards containing terms like Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential?, 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., When does electricity become hazardous to humans? OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 0000001861 00000 n 1.When you are using electricity near water Frequently inspect electrical systems to insure that the path to ground is continuous. Remove cords from receptacles by pulling on the plugs, not the cords. 3.When you are using portable power tools A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. c. Match the color of the tool to the color of the extension cord. 2.Something to transport the electrical current -- A conductor. C. near water. Ajay needs to use a dewatering pump to drain standing water on a construction site. Electrical Safety Assessment Quiz Answers | ISHN b.The tool's power cord. b. Deductive objects endobj b.Yes, as it would be too expensive to install more permanent wiring and receptacles. b.A fast-acting switch monitoring current flow 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp 4. 3.Clear Test your knowledge with our electrical safety quiz below. a.Conductive objects 0000004946 00000 n :$#k9BPnZ{Qqe/reKy,'ZlB# 4.Organs, 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. gYpV:+ When inspecting extension cords, look for: OSHA 30 Construction Final Test Answer Key - Studylib 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. [Flexible Cords and Power Tools]. Select the correct answer and then click DONE. It is important to note that NFPA 70E is a . 0000004208 00000 n 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 3.Needs to be reset Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 1.Flammable liquids 0000068035 00000 n hazard or that their employer is not following OSHA's rules. Of the following choices, which are frequent electrical hazards PDF Electrical Safety - Occupational Safety and Health Administration Unless you know otherwise, assume that overhead lines are energized. Additional minimum clearance distance is required for power lines carrying over ________. Which of the following are conductor of electricity? c.Guaranteed Fault Circuit Interrupter 0000003640 00000 n 0000001731 00000 n Introduction To Osha Quiz Answers1) Which of the following activities If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 2 0 obj endobj Should he use an extension cord to power it? 0000002386 00000 n =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR 1452 0 obj <> endobj 0000004274 00000 n 3.Body tissue Select the correct answer and then click DONE. Take any defective equipment out of service. PDF Electrical Hazards - Occupational Safety and Health Administration OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and (A) Shotgun sticks. d. Power outlets, ________ are anything that can transmit electrical current. Wearing a baseball cap Safe operation of hand and portable powered tools and other hand-held equipment. 1476 0 obj <>stream Does the fall qualify as an electrical accident? Is the west coast of Africa a plate boundary? 0000419562 00000 n Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. If you are touching any grounded material while using a power tool Additionally, the ground prong was missing and there was no GFCI protection. When does electricity become hazardous to humans? Select the correct answer and then click DONE. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. The small electrical current enters his body through his left leg. Select the choices that accurately define the common electrical term. . c.15 feet D. near other electrical equipment. Select the correct answer and then click DONE. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. 0000021516 00000 n electrical safety part 1 Flashcards | Quizlet PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 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. Electrical safety quiz answers are given below. 4.Must be replaced, Always use a GFCI: 1.Is faulty Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. b.burns. A) Identify; Castigate; C) Evaluate; D) Modify; 3. 0000007464 00000 n 4.No, because he does not need to use an extension cord. Electrical Safety Quiz - OSHA.net Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy a. Computers Burns. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. To avoid injury or death, you must understand and recognize hazards.

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