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PDF ODULE 1 INTRODUCTION TO E SAFETY - Occupational Safety and Health Which of the following are insulators of electricity? 0000002385 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: Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 4 0 obj This is action is also known as creating or completing an electrical circuit. The small electrical current enters his body through his left leg. 0000009628 00000 n 2. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Electrocution. One handle has a deadman's switch. ( Which of the following part of you body can burn if you come in contact with electricity? 0000414648 00000 n c.falls. 2.Grounding -Conductor= permits the free flow of electricity. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. Quiz Question 3: Power cords can be damaged by which of the following? 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. 4.Broken. [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. One hand drill was not grounded, and the other had no safety plate. 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 He plans to use it over a period of at least six months. 0000002195 00000 n 0000108920 00000 n Use only extension cords that are marked with a designation code for hard or extra-hard usage. 0000003413 00000 n Match the length from job to outlet. What was Latoya's first mistake? %PDF-1.4 % 0000000816 00000 n You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 0000420887 00000 n Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) The modification of the plug was not an intended use or prescribed by the manufacturer. How will she choose the correct cord? Hand-operated metal shifting ropes or cables of electric elevators. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 0000002876 00000 n 1.Missing s\A0W+ Before using the equipment, be sure that the ground wire: 1. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: endobj 0000001116 00000 n d. No, because an extension cord would not provide enough power. 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.Tears 0000018681 00000 n 2.Loose bolts If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 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. 3.Loss of eyesight OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet The victim was totally deaf in one ear and suffered diminished hearing in the other. -Voltage= a measure of electrical force. -Wood. (D) None of the above. 0000004884 00000 n b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. When it completes a circuit through the body. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 4.Flex Select the correct answer and then click DONE. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Does the fall qualify as an electrical accident? Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. Electricity becomes hazardous when it takes an unintended path to complete the ________. _.9u'2G_0 Ue]e"x5|Y 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. 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. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. This may damage your equipment and cause employee injuries. 0000007464 00000 n 1476 0 obj <>stream 0000001861 00000 n What factors determine the severity of Dirk's injuries? Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. Extension cords may become a trip hazard when: Most of the hydrides of Group 1A and Group 2A metals are ionic. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Of the following choices, which are frequent electrical hazards 0000003771 00000 n ZR)!=w|; @uT C0? 0000003900 00000 n 2.Skin Provide a safe path to earth ground for electricity. 4,600. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. True. Work performed on an electrical system within reaching distance of energized components is_____work. 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 0 obj OSHA 10 - Electrical Flashcards | Quizlet 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 The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Is split 3.Vapor 0000000016 00000 n electrical safety part 1 Flashcards | Quizlet Co-workers provided CPR, but were unable to revive the victim. Electrical Contractors Industry. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 0000002733 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. Carly needs to use an extension cord with her corded nail gun. 0000422244 00000 n Which of the following are insulators of electricity? 4.The amount of current, An electrical burn may affect: Select the correct answer and then click DONE. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 0000014257 00000 n 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. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. Continually audit cords on-site. Computers Using cords or tools with worn insulation or exposed wires. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. -Grounding= a conductive connection to the earth which acts as a protective measure. [, Do not modify cords or use them incorrectly. 1.Missing or broken path to ground. Select the correct answer and then click DONE. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 0000001604 00000 n D. near other electrical equipment. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Use only cords, connection devices, and fittings that are equipped with strain relief. 0000004921 00000 n Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Using multi-receptacle boxes designed to be. Is the west coast of Africa a plate boundary? Supply power for tools or equipment on a long-term basis. endobj |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Which of the following factors determine how severe an electrical injury might be? The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). endobj 0000007694 00000 n b. -Falls. Suppose you could convert the 525525525 Calories in the cheeseburger you ate for lunch into mechanical energy with 100%100 \%100% efficiency and you throw a 0.145kg0.145~\mathrm{kg}0.145kg baseball with the energy contained in the cheeseburger. High humidity )KL3C?e%Y92$,]^)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'. 3.Something that causes current to flow through the . 0000028595 00000 n One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. Cardiac arrest or death - A result of electrical shock. 4.Cardiac arrest Safe operation of hand and portable powered tools and other hand-held equipment. CCOHS: Electrical Safety - Basic Information a.Supply power for tools or equipment on a temporary or short-term basis. c.The outlet. and more. 1.Clench De-energize and ground lines when working near them. Power was supplied through two extension cords from a nearby residence. b) By supplying GFCIs, or ground-fault circuit interrupters Use only extension cords that are 3-wire type. What is the minimum clearance distance you must maintain from the power lines? a.Extension cords 0000427811 00000 n 0000001646 00000 n Which of the following injuries can occur when muscles flex or twitch from an electrical shock? Is not painted over 4.Circuit breakers, When inspecting power tools, look for: c.Gasoline Easy to identify The accident site was wet; also, humidity was high and the victim was sweating. 0000056642 00000 n OSHA requires the testing of a volt meter after a voltage test on voltage above_____. b.811 3 0 obj 0000007116 00000 n c.Guaranteed Fault Circuit Interrupter The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. Additionally, the ground prong was missing and there was no GFCI protection. Stay at least 10 feet away from overhead power lines. 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. Which of the following are electrical hazards? - Brainly.com Equipment used in manner prescribed. 2.Something to transport the electrical current -- A conductor. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: Electrical Hazards Electrical hazards can be found in nearly every roofing work site. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. a) Door or window edges b. Deductive objects OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. A measure of the energy of motion of the particles in a substance is its _____. What do tripped circuit breakers and blown fuses indicate? 1.Using a fiberglass ladder when the possibility exists for contact with electricity. What three things must be present for a current to flow through a conductor. which of the following are electrical hazards osha quizlet Select the correct answer and then click DONE. Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy 0000004274 00000 n Burns. C 277v. 0000024814 00000 n 0000004793 00000 n Both could have prevented the accident from occuring. 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. 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. 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). 0000007427 00000 n 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? What is the most common, non-fatal, electrical shock-related injury? Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. DHPP0MHLHIPPXc f2LXL"dgJ:@ ys`llr-shH,Y@Z 23J0a_TXD;X,;&0i,i&f&T8h R/ v`,l. 440!2D9482q={LPXs +( endstream endobj 129 0 obj <> endobj 130 0 obj <> endobj 131 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageB]/ExtGState<>>> endobj 132 0 obj <> endobj 133 0 obj <> endobj 134 0 obj <> endobj 135 0 obj <>stream 3.Loose nuts 182 0 obj <> endobj xref 182 41 0000000016 00000 n Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. q>NmnLNmb$"Iyx1bD9.~Ll. b.Yes, because Bob was on . 1.Pain Electrical current travels through insulated ________. Switch A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. OSHA will keep all identities confidential. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. 3.Clear 0000055319 00000 n The auger then fell across the other worker, the 24-year-old victim. 0000006866 00000 n 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. D. Have an ANSI sticker and an expiration date. 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? A co-worker disconnected the power cord to the saw, too late to save the victim. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Using equipment outdoors that is labeled for use only in dry, indoor locations. Wearing a baseball cap Quiz: Electrical Hazards. It is important to note that NFPA 70E is a . A. wrap tape around the damaged spot to prevent electrical shocks. PDF C. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? To avoid injury or death, you must understand and recognize hazards. 3.No, because he will not be touching any grounded material when using the tool. Lx*jWP# /c2)|]NXqAx>=~'[ Electrical safety quiz answers are given below. %PDF-1.5 Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. OSHA: Electrical Hazards Flashcards | Quizlet 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. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 3. Quiz Question 7: Which is not an insulator? _5JKy. 0000017336 00000 n Question 3: A/an ____________ is a unit of measurement for electrical resistance. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. A. indoors. a.Conductive objects Which of the following are caused by contact with electricity? Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. These short objective type questions with answers are very important for competitive exams as well as Board exams. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 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. 3.Cramp b.Electrical tools B. outdoors. b+t6W' te+.W_{8u7Dt@1c. 0000002386 00000 n Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Electrical Hazards - SSOE Group Identify the oxidizing and reducing agents. Draw a line from the item on the left that corresponds to the match on the right. 1.When you are using electricity near water 2.The person's physical condition 4 0 obj Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 2.Yes, because he is using a portable power tool. 2.Using an aluminum ladder when the possibility exists for contact with electricity. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 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. Quiz Question 1: Which of the following is not a category of electrical burns? 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. B. Select the correct answer and then click DONE. The contact lasts for 5 seconds before someone is able to shut off the power. . Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 0000006152 00000 n Intentionally creating a low-resistance path that connects to the earth. 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. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. a.Electricity 0000003254 00000 n Lockout/tagout procedures. She finds several available in the shop. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. A) 120v . 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 1. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Contact utilities for buried power line locations. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ d) All of the above. 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! d) All of the above. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 1. d.Alert workers of any water in the area, GFCI is an acronym for: % 0000007741 00000 n Using tools and equipment that can contact power lines increases the risk. 0000008392 00000 n Which group would be more accurate when used in an accelerating spaceship? A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 0000420277 00000 n How might this event affect the ability of animals to obtain energy to live? Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Explosion. Dust a.Standing in water Select the correct answer and then click DONE. 1452 25 B 208v. b.Rod %%EOF The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. Select the correct answer and then click DONE. 0000001908 00000 n 0000000816 00000 n 128 0 obj <> endobj xref 128 26 0000000016 00000 n Use tools and equipment according to the instructions included in their listing, labeling or certification. Looking for NFPA 70E Certification? An examination revealed that the spring, cover plate, and part of the melamine casing were missing from the face of the female connector (the spring and some melamine fragments were found at the accident site). A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. 0000005716 00000 n 1.Damaged cover or insulation Apply a warning tag to any defective tool and do not use it until the problem has been corrected. 0000005520 00000 n Should Ajay use a GFCI? 0000001731 00000 n 0000022637 00000 n Overview. Apparently, his hand contracted and he was "locked" to the saw. 0000004273 00000 n The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. d. Match the outlet prongs to the extension cord. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh.