21 Examples Of Electrical Hazards - HSEWatch B. outdoors. 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. Draw a line from the item on the left that corresponds to the match on the right. 0000007464 00000 n (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Select the choices that accurately define the common electrical term. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . The victim was part of a crew that was constructing a concrete wall. 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. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. A. wrap tape around the damaged spot to prevent electrical shocks. 3.Vapor 0000003715 00000 n -If current passes through the body near the heart or brain. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. endobj 0000005632 00000 n Ground all exposed metal parts of equipment. 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. 0000009628 00000 n 3.No, because he will not be touching any grounded material when using the 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. Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? Carly needs to use an extension cord with her corded nail gun. D 600v. c.Gasoline c.The outlet. Frequently inspect electrical systems to insure that the path to ground is continuous. 3. 0000010155 00000 n 0000005734 00000 n qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 0000089142 00000 n OSHA 29 CFR 1910, Subpart P . Extension cords had poor splices, no grounds, and reversed polarity. Overview. 3 0 obj a.Shut off power within a fraction of a second . Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. 0000005716 00000 n This is action is also known as creating or completing an electrical circuit. 0000028595 00000 n 0000001861 00000 n HWMo#7v#h>6,Z4- Match the length from job to outlet. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Besides personal bodily injury, what other electrical hazards can be found in the workplace? 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? BE SAFE! Provide a safe path to earth ground for electricity. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Freeze The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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. d.Adapter, What is a GFCI? 0000414648 00000 n Use only equipment that is approved to meet OSHA standards. 0000002403 00000 n 0000004884 00000 n Using tools and equipment that can contact power lines increases the risk. b.Rod A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Arc Flash. -Damage to internal organs. PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. Extension cords may become a trip hazard when: %%EOF Then answer the questions below. (3,2,1), (5,4,3). 1.When you are using electricity near water -Severe skin burns. 1.Fingernails 1.Using a fiberglass ladder when the possibility exists for contact with electricity. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Provides information about the hazards that electrical workers may experience as a part of their jobs. -Voltage= a measure of electrical force. _5JKy. De-energizing The victim provided a path to ground and was electrocuted. 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 A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. 0000004965 00000 n 1. 0000002557 00000 n Does the fall qualify as an electrical accident? Damaged Extension Cord Leaves Arc Welder Ungrounded: A 29-year-old welder attempted to connect a portable arc welder to an electrical outlet using an extension cord. The workers administered CPR to the victim, but to no avail. c. Inductive objects Yes, because he will be using electricity near water. OSHA 10 - Electrical Flashcards | Quizlet 2.Loss of muscle control The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. B 208v. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB 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. 1.Is firmly connected Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. If a worker has been retaliated against for using their rights, they a) Ensure overhead power line safety If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. . Electrical Safety Quiz - OSHA.net A) 120v . xref 0000003603 00000 n Is not broken, Question Text: Electrical tools should be grounded with a(n)________. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS She finds several available in the shop. 0000001731 00000 n q>NmnLNmb$"Iyx1bD9.~Ll. a.related to muscle damage. Lx*jWP# /c2)|]NXqAx>=~'[ 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) Establish and enact an assured equipment grounding conductor program (AEGCP) To avoid injury or death, you must understand and recognize hazards. Is not painted over 0000006152 00000 n As she is adding in the chemicals, her hand touches the motor and it becomes energized. 0000017163 00000 n 3.Cramp Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. endobj SCENARIO: You encounter a co-worker on a residential remodeling job. 0000004444 00000 n 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. 0000008392 00000 n Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 0000005520 00000 n 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. 2.Loose screws endobj 0000012360 00000 n Which of the following are caused by contact with electricity? 1452 0 obj <> endobj 4 0 obj Using multi-receptacle boxes designed to be. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs 5. lex has set up a mobile engine testing station in the maintenance area. 2. Cardiac arrest or death - A result of electrical shock. (E) a, b, and c. 2. Electrical Hazards - SSOE Group hazard or that their employer is not following OSHA's rules. 0000056642 00000 n PDF OSHA Safety - Electrical Safety - Red Vector c.falls. The source of the shocks -- the saw -- was not replaced. One handle has a deadman's switch. Electrical current travels through insulated ________. When used on the moon? 0000000016 00000 n OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. He plans to use it over a period of at least six months. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q D. Have an ANSI sticker and an expiration date. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. electrical safety part 1 Flashcards | Quizlet 0000015549 00000 n )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. 1. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Quiz Question 1: Which of the following is not a category of electrical burns? PDF Electrical Safety - Occupational Safety and Health Administration 2.Flooding Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 0000001896 00000 n OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Safe operation of hand and portable powered tools and other hand-held equipment. d.The body of the power tool. 2. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. What type of burns are the result of current flowing through and exiting the body? _.9u'2G_0 Ue]e"x5|Y gYpV:+ 3.Loose nuts 1 0 obj Select the choices that accurately define the common electrical term. 3.ack of ground fault protection. 4.Must be replaced, Always use a GFCI: 0 Is the west coast of Africa a plate boundary? 3. Burns. 0000001672 00000 n PDF ODULE 1 INTRODUCTION TO E SAFETY - Occupational Safety and Health b. b.Ground Fault Critical Interrupter Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. [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. Best Practices with Power Lines 1. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 30 days B. The factors that determine the severity of an electrical injury include: OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and [Power Tools]. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. a.A small current 0000110659 00000 n 3. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. Which of the following factors determine how severe an electrical injury might be? OSHA requires the testing of a volt meter after a voltage test on voltage above_____. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream c.911 While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. Use only cords, connection devices, and fittings that are equipped with strain relief. In addition to contact with power lines, the top electrical hazards include: c. Match the color of the tool to the color of the extension cord. Introduction To Osha Quiz Answers1) Which of the following activities c) Age 4. Select the correct answer and then click DONE. 0000004686 00000 n Ground all power supply systems, electrical circuits, and electrical equipment. Question 1: Which of the following is a danger of electricity? Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. No GFCI's were used. The modification of the plug was not an intended use or prescribed by the manufacturer. Best Practices with Power Lines Quiz OSHA 30 - Best 3.Loss of eyesight 3.Needs to be reset Electrical Safety Multiple Choice Questions and Answers for competitive exams. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. c. Extend the reach of the power tool. 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. d.Water, Other electrical hazards in the workplace include: Examples of Equipment That Can Contact Power Lines. 0000005050 00000 n Electrical Safety Quiz-Test Your Electrical Safety Knowledge [. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. -Conductor= permits the free flow of electricity. Should he use an extension cord to power it? Hand-operated metal shifting ropes or cables of electric elevators. A. indoors. Test your knowledge with our electrical safety quiz below. a.311 Select the correct answer and then click DONE. 3.When you are using portable power tools 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. d.50,000 volts. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 0000011060 00000 n H. 0000004274 00000 n c.15 feet What is the minimum clearance distance you must maintain from the power lines? 0000000816 00000 n 0000018681 00000 n Any cords found not to be marked for hard or extra-hard use, or which have been modified, must be taken out of service immediately. True. 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. 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. A co-worker disconnected the power cord to the saw, too late to save the victim. a.Conductive objects Electricity will form a "path" or "loop". 0000420277 00000 n [, Do not modify cords or use them incorrectly. 0000108920 00000 n 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! He may have dropped the extension cord at the site and not heard the connector break. 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. Does the fall qualify as an electrical accident? Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 4.No, because he does not need to use an extension cord. c.A measurement of electricity [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. PDF Electrical Hazards - Occupational Safety and Health Administration 4.Cardiac arrest Which of the following part of you body can burn if you come in contact with electricity? Select the correct answer and then click DONE. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. -Current= the movement of electrical charge. specifically addresses electrical protective devices. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. h|UnH}+i-. Both could have prevented the accident from occuring. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. 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. He yelled for his co-workers to disconnect the power, which they did. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Frames of non-electrically driven elevator cars to which electric conductors are attached. 3.Body tissue Which of these can be used as insulating live-line tools for electrical protection. Determine duration, frequency, degree of exposure to hazards and physical stress. There were no eyewitnesses to the accident, but evidence suggests that while the victim was handling the damaged and energized extension cord, he provided a "path to ground" and was electrocuted. If you are touching any grounded material while using a power tool 0000003640 00000 n When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Use only extension cords that are marked with a designation code for hard or extra-hard usage. The following references aid in recognizing hazards associated with electrical work. 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. Electrical - Overview | Occupational Safety and Health Administration Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Be sure equipment that has been shop fabricated or altered is in compliance. d. 20 feet. De-energize and ground lines when working near them. 3.Something that causes current to flow through the . 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). Examples Of Electrical Hazards. vpfuI)],s %PDF-1.4 % 2 0 obj What do tripped circuit breakers and blown fuses indicate? 4.The amount of current, An electrical burn may affect: 0000003254 00000 n NFPA 70E: Standard for Electrical Safety in the Workplace 0000001646 00000 n 0000004208 00000 n When does electricity become hazardous to humans? As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. How will she choose the correct cord? 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: c.Absorb any water around the area 2. Apparently, his hand contracted and he was "locked" to the saw. 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 . You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. s\A0W+ Unless you know otherwise, assume that overhead lines are energized. 2.Yes, because he is using a portable power tool. 3.Tears 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. endobj CCOHS: Electrical Safety - Basic Information 0000002479 00000 n 0000422244 00000 n 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: Use tools and equipment according to the instructions included in their listing, labeling or certification. b.burns. 4. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? d. 411, You are working with a 10-foot section of a conductive pipe near power lines. 1. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. OSHA 29 CFR 1910.147 . [, Use all equipment according to the manufacturer's instructions. Which of the following are insulators of electricity? These short objective type questions with answers are very important for competitive exams as well as Board exams. Which group would be more accurate when used in an accelerating spaceship? xYmo -ER/&@[D,_! Select the correct answer and then click DONE. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 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). 4 0 obj Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. c.Three-prong plug Power was supplied through two extension cords from a nearby residence. 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. . Electrical Safety Assessment Quiz Answers | ISHN 0000419562 00000 n The NEC C. Suggestions 4.Circuit breakers, When inspecting power tools, look for: OSHA Safety and Health Topics Page. When an electric shock occurs, your muscles may: 4.Flex 0000420887 00000 n 0000007741 00000 n 1.Is faulty Question 2: Which of the following is NOT a category of electrical burns? (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Equipment used in manner prescribed. Effective means of controlling power line hazards include: 2.Placed along a wall. 3.Clear <> a. Gaseous matter g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 0000001908 00000 n Select the correct answer and then click DONE. 2.Is working properly Death. -Rubber. 1.A source of electrical current to flow. One hand drill was not grounded, and the other had no safety plate. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Death is probable. 0000007116 00000 n (D) None of the above. 1.Pain 2.Skin Identify the oxidizing and reducing agents. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 1.Cuts <>>> 0000002876 00000 n OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet 0000004946 00000 n ZR)!=w|; @uT C0? Quiz Question 7: Which is not an insulator? % 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: Lockout/tagout procedures. Look for overhead power lines and buried power line indicators. Easy to identify When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ 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. 2.Something to transport the electrical current -- A conductor. a.Your thumb. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. 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. Electrical Contractors Industry. Visually inspect all electrical equipment before use. Best practices with power lines include: 0000421627 00000 n Outlets Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Use only extension cords that are 3-wire type.
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