which of the following are electrical hazards osha quizlet

<> Select the correct answer and then click DONE. This may damage your equipment and cause employee injuries. 0000006893 00000 n Quiz: Electrical Hazards. _.9u'2G_0 Ue]e"x5|Y %%EOF B. 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. Does the fall qualify as an electrical accident? b.Ground Fault Critical Interrupter b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Fire Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 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. Hand-operated metal shifting ropes or cables of electric elevators. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. 1.Flammable liquids 0000007427 00000 n 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 2. 0000055319 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. Improper Use of Extension and Flexible Cords. Use only cords, connection devices, and fittings that are equipped with strain relief. 4. %PDF-1.4 % d.Alert workers of any water in the area, GFCI is an acronym for: It's okay to use extension cords with worn insulation, as . Both could have prevented the accident from occuring. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Select the correct answer and then click DONE. Before using the equipment, be sure that the ground wire: b.The tool's power cord. Of the following choices, which are frequent electrical hazards a.Supply power for tools or equipment on a temporary or short-term basis. 3. One hand drill was not grounded, and the other had no safety plate. 0000001908 00000 n Examples of Equipment That Can Contact Power Lines. 0000420277 00000 n Besides personal bodily injury, what other electrical hazards can be found in the workplace? In addition to contact with power lines, the top electrical hazards include: 0000005734 00000 n gYpV:+ 182 0 obj <> endobj xref 182 41 0000000016 00000 n Select the correct answer and then click DONE. A. indoors. What three things must be present for a current to flow through a conductor. Is not broken, Question Text: Electrical tools should be grounded with a(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. c) Establish and enact an assured equipment grounding conductor program (AEGCP) a.Your thumb. Frames of non-electrically driven elevator cars to which electric conductors are attached. 0000000016 00000 n 3.Needs to be reset Identify the oxidizing and reducing agents. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Intentionally creating a low-resistance path that connects to the earth. [. 0000057373 00000 n -Current= the movement of electrical charge. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Do not remove ground prongs from cord- and plug-connected equipment or extension cords. Does the fall qualify as an electrical accident? 0000006152 00000 n 0000002557 00000 n 4 0 obj Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Computers Working with electricity can be dangerous. 0000421627 00000 n The accident site was wet; also, humidity was high and the victim was sweating. Look for overhead power lines and buried power line indicators. 0000003640 00000 n C 277v. OSHA 10 General Industry Test Answer Key WALKING. :$#k9BPnZ{Qqe/reKy,'ZlB# 3. a. Gaseous matter Potential hazards of electricity are preventable if you do which of the following listed below? 2.Something to transport the electrical current -- A conductor. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. b.811 [29 CFR 1926.416(a)(1)]. H\n0)M) 0Ir(,?FoKhdklz6zHG;mOqOh-tv.]NGv~d.m\S{|Fo-x-\"1X/niCYeq"ol8D~&?Kr V_/9yf 9JV%J899s{_G#R0="dL5,p: 2.Using an aluminum ladder when the possibility exists for contact with electricity. 0000001672 00000 n Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Test your knowledge with our electrical safety quiz below. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. OSHA 29 CFR 1910, Subpart S . )KL3C?e%Y92$,]^)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'. Extension cords may become a trip hazard when: Visually inspect all electrical equipment before use. 1 0 obj _5JKy. 0000001604 00000 n Burns. 0000000816 00000 n 1.Pain Which group would be more accurate when used in an accelerating spaceship? Select the correct answer and then click DONE. 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 endobj Which of the following are insulators of electricity? 0000004273 00000 n 0000004208 00000 n What is the output of the program in Exercise 17, if first = 26 and second = 8? 4.Circuit breakers, When inspecting power tools, look for: 0000022637 00000 n Extension cords are used to: vpfuI)],s OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Overview. b.Electrical tools 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 Quiz Question 9: Conductor insulation must be approved for the ___________ of use? Using cords or tools with worn insulation or exposed wires. endobj Additionally, the ground prongs were missing from the two cords. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. a.Two-prong plug 0000004965 00000 n 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) c.falls. Equipment used in manner prescribed. *Effects are for voltages less than about 600 volts. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. View Answer Answer: 600v 4 . 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. Best Practices with Power Lines 1. 0000003254 00000 n Question 2: Which of the following are ways employers must protect their employees on the workplace? Provide a safe path to earth ground for electricity. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. endobj Electrical hazards are life threatening incidents that could happen due to electricity. 0000002385 00000 n Latoya is using a mixing motor to mix pool chemicals in a plastic drum. Which of the following can be the result of electric shock? OSHA Safety and Health Topics Page. Which of the following are insulators of electricity? (3,2,1), (5,4,3). . [Flexible Cords and Power Tools]. 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. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 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. Select the correct answer and then click DONE. Electrical current travels through insulated ________. c.Guaranteed Fault Circuit Interrupter If a defective power tool gives you an electric shock, how might your muscles react? 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: 2. 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. d.Metal, Over half of all deaths caused by electricity result from contact with ________. Electricity becomes hazardous when it takes an unintended path to complete the ________. HWMo#7v#h>6,Z4- Use only extension cords that are marked with a designation code for hard or extra-hard usage. Select the correct answer and then click DONE. (b) The same reaction can also be classified as a redox reaction. stream x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q He may have dropped the extension cord at the site and not heard the connector break. 0000028595 00000 n Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 0000421920 00000 n OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. <>>> Determine duration, frequency, degree of exposure to hazards and physical stress. Use tools and equipment according to the instructions included in their listing, labeling or certification. 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. Using tools and equipment that can contact power lines increases the risk. c) Age A. wrap tape around the damaged spot to prevent electrical shocks. 0000004793 00000 n Be sure equipment that has been shop fabricated or altered is in compliance. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires 0000110659 00000 n OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Select the correct answer and then click DONE. 3.Tears Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) gYpV:+ 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. 3.Cramp Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ When an electric shock occurs, your muscles may: How will she choose the correct cord? Check your employee's electrical safety knowledge through an electrical safety quiz. 4.No, because he does not need to use an extension cord. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. 1. Additional minimum clearance distance is required for power lines carrying over ________. -Damage to internal organs. What do tripped circuit breakers and blown fuses indicate? As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. True. xYmo -ER/&@[D,_! 1.The humidity of the environment 3.Draped over equipment. The ________ keeps the electricity on its intended path through the conductor. Power was supplied through two extension cords from a nearby residence. C. near water. 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. OSHA 29 CFR 1910.147 . The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). One handle has a deadman's switch. 2.Loss of muscle control c.40,000 volts 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. 0000419562 00000 n The modification of the plug was not an intended use or prescribed by the manufacturer. c. Inductive objects 12 months C. 6 months D. Never Q23. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. 0000004444 00000 n Continually audit cords on-site. Explosion. 4.Broken. 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. 3. lex has set up a mobile engine testing station in the maintenance area. What is the minimum clearance distance you must maintain from the power lines? Is split 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 Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. D. Have an ANSI sticker and an expiration date. 0000002733 00000 n As she is adding in the chemicals, her hand touches the motor and it becomes energized. xref 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. 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. 0000010155 00000 n d. No, because an extension cord would not provide enough power. 1. 0000005520 00000 n Question 3: A/an ____________ is a unit of measurement for electrical resistance. 0000002479 00000 n uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. Post warning signs. Additionally, the ground prong was missing and there was no GFCI protection. trailer De-energize and ground lines when working near them. Dust 1.Using a fiberglass ladder when the possibility exists for contact with electricity. List the four main types of electrical injuries, Using the illustration, select the answer that matches the picture, Identify the illustration by selecting the appropriate answer. The workers administered CPR to the victim, but to no avail. lb MKS The victim was part of a crew that was constructing a concrete wall. q>NmnLNmb$"Iyx1bD9.~Ll. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 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 the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Yes, because he will be using electricity near water. 0000003715 00000 n If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. Unless you know otherwise, assume that overhead lines are energized. 1452 0 obj <> endobj I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB 2.Skin Arc Flash. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? Switch -Falls. A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. 0000002150 00000 n b.Metal 3.Something that causes current to flow through the . H. 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. Explain the purpose and use of the MyPlate symbol. a.311 When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. c.Wood 0000420564 00000 n 2 0 obj Frequently inspect electrical systems to insure that the path to ground is continuous. 1452 25 a) Ensure overhead power line safety Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 0000002122 00000 n stream a.Yes, because the electrical shock caused the fall. Electrocution. Work performed on an electrical system within reaching distance of energized components is_____work. 2.Loose bolts Use only extension cords that are 3-wire type. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. How fast would the ball be moving at the moment of release? 4.Flex Should he use an extension cord to power it? 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. 0000013999 00000 n Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? endobj Provides information about the hazards that electrical workers may experience as a part of their jobs. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. The ground wire was not attached on the male end of the cord's plug. 1.Clench 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. Is the west coast of Africa a plate boundary? The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. SCENARIO: You encounter a co-worker on a residential remodeling job. a. 4.The amount of current, An electrical burn may affect: This caused him to fall from the ladder and land in a puddle of water, still holding the saw. In which of the following workplace situations are you at risk for coming into contact with live electrical . The victim was totally deaf in one ear and suffered diminished hearing in the other. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. % 0 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. 2.Yes, because he is using a portable power tool. a.Shut off power within a fraction of a second Using multi-receptacle boxes designed to be. Select the correct answer and then click DONE. The workers had removed their shirts and were sweating. 0000007116 00000 n 3 0 obj 0000004884 00000 n Use only equipment that is approved to meet OSHA standards. 4. 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. 128 0 obj <> endobj xref 128 26 0000000016 00000 n OSHA 29 CFR 1910, Subpart P . Supply power for tools or equipment on a long-term basis. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked.

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