b.Electrical tools 3.The length of time the body is in 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. (C) Hot sticks. b.Not wearing insulating shoes or boots when she was handling electrical equipment Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 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. Select the choices that accurately define the common electrical term. She finds several available in the shop. b.burns. Explosion. 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. Examples of Equipment That Can Contact Power Lines. [Flexible Cords and Power Tools]. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). 1.The humidity of the environment 0000056642 00000 n Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. a.Ground Fault Circuit Insulator When does electricity become hazardous to humans? Best practices with power lines include: In which of the following workplace situations are you at risk for coming into contact with live electrical . Working with electricity can be dangerous. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Electrical safety quiz answers are given below. C 277v. Which of these can be used as insulating live-line tools for electrical protection. Quiz: Electrical Hazards. What is the primary purpose of properly grounding equipment? What is the most common, non-fatal, electrical shock-related injury? [. b.Rod Outlets )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'. Electrocution. 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? 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. % a.Yes, as it is a mobile engine testing station. 0000001814 00000 n OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Which of the following are insulators of electricity? He may have dropped the extension cord at the site and not heard the connector break. 2.The person's physical condition D. Have an ANSI sticker and an expiration date. Cardiac arrest or death - A result of electrical shock. Death is probable. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. RZyd Arc Flash. 3.Loss of eyesight 1. c.falls. How fast would the ball be moving at the moment of release? D. near other electrical equipment. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. To avoid injury or death, you must understand and recognize hazards. endobj 4 0 obj If a worker has been retaliated against for using their rights, they 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 One handle has a deadman's switch. Use only cords, connection devices, and fittings that are equipped with strain relief. xref BE SAFE! a.Electricity Select the correct answer and then click DONE. . Water OSHA 10 General Industry Test Answer Key WALKING. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. c.Gasoline 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+ 0000421920 00000 n Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Frequently inspect electrical systems to insure that the path to ground is continuous. 3.Draped over equipment. c.40,000 volts OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. Before using the equipment, be sure that the ground wire: The following are electrical hazards: Shock. 1 0 obj <> 0000000816 00000 n c.Wood 2.Complete D 600v. Look for overhead power lines and buried power line indicators. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 4.Cardiac arrest 0000013999 00000 n 2.Grounding a.A small current The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 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. If you are touching any grounded material while using a power tool 0000028595 00000 n 0000002122 00000 n A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Quiz Question 7: Which is not an insulator? 4.No, because he does not need to use an extension cord. 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 a.311 0000007116 00000 n Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? and more. endobj 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). The contact lasts for 5 seconds before someone is able to shut off the power. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Select the correct answer and then click DONE. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 1452 25 Is the west coast of Africa a plate boundary? 4.Running through doorways. stream 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. 0000089142 00000 n 3 0 obj Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 2.Yes, because he is using a portable power tool. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Ground all power supply systems, electrical circuits, and electrical equipment. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. endobj a.Standing in water Use non-conductive wood or fiberglass ladders when working near power lines. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. As she is adding in the chemicals, her hand touches the motor and it becomes energized. c.15 feet View Answer Answer: 600v 4 . B. outdoors. Select the correct answer and then click DONE. d.50,000 volts. Provide a safe path to earth ground for electricity. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 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. 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. 1. 0000006893 00000 n 0000005042 00000 n Underground electrical hazards are: A. a.Conductive objects 0000007694 00000 n 0000012944 00000 n 0000024814 00000 n Quiz Question 3: Power cords can be damaged by which of the following? 4.The amount of current, An electrical burn may affect: c.Absorb any water around the area 0000003640 00000 n Remove cords from receptacles by pulling on the plugs, not the cords. Carly needs to use an extension cord with her corded nail gun. 2.Grease 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. What is the minimum clearance distance you must maintain from the power lines? lex has set up a mobile engine testing station in the maintenance area. 0000002479 00000 n % 0000021516 00000 n In addition to contact with power lines, the top electrical hazards include: One hand drill was not grounded, and the other had no safety plate. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Select the correct answer and then click DONE. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. 0000004444 00000 n c) Establish and enact an assured equipment grounding conductor program (AEGCP) 30 days B. 0000420564 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. 2 0 obj Improper Use of Extension and Flexible Cords. You need to evaluate the situation you are in and assess your . Both could have prevented the accident from occuring. 0000015549 00000 n 1.Is faulty You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 4. OSHA will keep all identities confidential. Select the correct answer and then click DONE. 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. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Select the choices that accurately define the common electrical term. 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. 0000007464 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. The victim provided a path to ground and was electrocuted. A. wrap tape around the damaged spot to prevent electrical shocks. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. startxref I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB b. Deductive objects 0000420887 00000 n 0000420277 00000 n (D) None of the above. The modification of the plug was not an intended use or prescribed by the manufacturer. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh.