Death. h|UnH}+i-. Does the fall qualify as an electrical accident? Introduction To Osha Quiz Answers1) Which of the following activities It is important to note that NFPA 70E is a . Use only cords, connection devices, and fittings that are equipped with strain relief. The most dangerous place to use electrical equipment is? 0000420564 00000 n According to NFPA 70E, job briefings must be held for those employees that will be working on or near live parts operating at ______ or more. Remove cords from receptacles by pulling on the plugs, not the cords. Use only extension cords that are 3-wire type. 1.A source of electrical current to flow. Using equipment outdoors that is labeled for use only in dry, indoor locations. a.Your thumb. 1.Damaged cover or insulation 0000017163 00000 n 182 0 obj <> endobj xref 182 41 0000000016 00000 n 0000108920 00000 n <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 3.The length of time the body is in contact with electricity She has an older drill with a steel housing and a 3-prong plug. Which of the following are insulators of electricity? A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. c.Touching the motor Used across walkways. a) Door or window edges Wearing a baseball cap 0000001672 00000 n 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. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 3.Tears %PDF-1.5 @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ d. 20 feet. 2. Electrical Safety Quiz - OSHA.net . d.The body of the power tool. b.Ground Fault Critical Interrupter OSHA will keep all identities confidential. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 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. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 0000005050 00000 n How fast would the ball be moving at the moment of release? OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. Get All Answers to OSHA 30 Construction Final Exam. 5 feet 0000420887 00000 n 2.Loose bolts 0000001495 00000 n Extension cords are used to: The auger then fell across the other worker, the 24-year-old victim. 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. Electrocution. A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. 0000012360 00000 n <> -Glass. a) Ensure overhead power line safety Then answer the questions below. Isolating, Power lines may be located underground. 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. Electrical - Overview | Occupational Safety and Health Administration Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. As he began to pull away, the crew supervisor yelled to him, asking if the crew could use his water hose to wash out their cement bucket suspended from the crane. d.A power tool, A GFCI is designed to: Lockout/tagout procedures. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q trailer 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. a.Yes, because the electrical shock caused the fall. 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. 4.Must be replaced, Always use a GFCI: When does electricity become hazardous to humans? 0000001896 00000 n d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs a.Yes, as it is a mobile engine testing station. The modification of the plug was not an intended use or prescribed by the manufacturer. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. 3. 0000003640 00000 n 0000000816 00000 n 1.When you are using electricity near water Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. Which of the following are conductor of electricity? Should he use an extension cord to power it? He may have dropped the extension cord at the site and not heard the connector break. . Other protective measures include guarding or insulating the lines. 4 0 obj As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 0000002195 00000 n 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. s\A0W+ Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 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. 0000003715 00000 n Use tools and equipment according to the instructions included in their listing, labeling or certification. What factors determine the severity of Dirk's injuries? I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Question 1: Which of the following is a danger of electricity? Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 128 0 obj <> endobj xref 128 26 0000000016 00000 n 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. he most common shock-related injuries are: Potential hazards of electricity are preventable if you do which of the following listed below? Which of the following are caused by contact with electricity? a.Conductive objects A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. 0000028595 00000 n 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. 0000004686 00000 n Explosion. 21 Examples Of Electrical Hazards - HSEWatch Effective means of controlling power line hazards include: c.Absorb any water around the area using a 30-amp breaker in a system with 15- or 20-amp receptacles. 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: 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. (E) a, b, and c. 2. 1. 0000002403 00000 n Electrical current travels through insulated ________. 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. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Post warning signs. Additional minimum clearance distance is required for power lines carrying over ________. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? a. 3.Vapor He plans to use it over a period of at least six months. 0000005734 00000 n Is split Frequently inspect electrical systems to insure that the path to ground is continuous. 4.Circuit breakers, When inspecting power tools, look for: Select the correct answer and then click DONE. Using cords or tools with worn insulation or exposed wires. 0000002385 00000 n <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> [, Use all equipment according to the manufacturer's instructions. 0000421627 00000 n 2. PDF OSHA Safety - Electrical Safety - Red Vector In which of the following workplace situations are you at risk for coming into contact with live electrical . 3.ack of ground fault protection. Bob is asked to repair some overhead wiring, requiring the use a ladder. Hand-operated metal shifting ropes or cables of electric elevators. Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries 1. What are the 4 main type of hazards? [Ultimate Guide!] PDF Electrical Safety - Occupational Safety and Health Administration What is the primary purpose of properly grounding equipment? 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. (C) Hot sticks. endobj Electricity will form a "path" or "loop". Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. -Severe skin burns. This is action is also known as creating or completing an electrical circuit. d. heart attacks. %PDF-1.4 % The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . 0000009628 00000 n 4.Broken. 2. If you are touching any grounded material while using a power tool Osha 10 test answers 2021 quizlet - Math Questions The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. Of the following choices, which are frequent electrical hazards 2.Using an aluminum ladder when the possibility exists for contact with electricity. 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. b.Not wearing insulating shoes or boots when she was handling electrical equipment -Voltage= a measure of electrical force. What three things must be present for a current to flow through a conductor. Burns. Select the correct answer and then click on DONE. Find the energy required to raise an electron from the n=4n=4n=4 state to the n=5n=5n=5 state in Li2+\mathrm{Li}^{2+}Li2+ and in hydrogen atom. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 0000001861 00000 n 1.Flammable liquids . 0000010603 00000 n Regarding hand protection employers should: A. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. C. near water. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 2. a. Gaseous matter 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 a.Electricity Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 0000002150 00000 n c.A measurement of electricity a.Supply power for tools or equipment on a temporary or short-term basis. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 1.Cuts Use only extension cords that are marked with a designation code for hard or extra-hard usage. SCENARIO: You encounter a co-worker on a residential remodeling job. OSHA 29 CFR 1910, Subpart S . 2.Is working properly 4.Flex Electrical hazards are life threatening incidents that could happen due to electricity. 0000024814 00000 n 1.Fingernails OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet 0000002479 00000 n A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 4.The amount of current, An electrical burn may affect: 0000001908 00000 n This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 1.Extension cords gYpV:+ [Flexible Cords and Power Tools]. b.Shut off power within five minutes of the imbalance a.Two-prong plug d) All of the above. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 1. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. 3.Body tissue qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 1.Clench Which of these can be used as insulating live-line tools for electrical protection. 2.Yes, because he is using a portable power tool. The contact lasts for 5 seconds before someone is able to shut off the power. 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. Look for overhead power lines and buried power line indicators. 0000001116 00000 n 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. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. <<7628BB2D46738F42B2FC6393656F4718>]>> Test your knowledge with our electrical safety quiz below. Best Practices with Power Lines Quiz OSHA 30 - Best Outlets The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Is the west coast of Africa a plate boundary? 2.Loose screws Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 0 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: Question 2: Which of the following are ways . d.Metal, Over half of all deaths caused by electricity result from contact with ________. The accident site was wet; also, humidity was high and the victim was sweating. PDF ODULE 1 INTRODUCTION TO E SAFETY - Occupational Safety and Health