which of the following are electrical hazards osha quizlet
d. heart attacks. 3 0 obj 2. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. d. Match the outlet prongs to the extension cord. gYpV:+ Question 2: Which of the following are ways . 1452 0 obj <> endobj Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 0000003640 00000 n Using multi-receptacle boxes designed to be. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow s\A0W+ c.A measurement of electricity The ground wire was not attached on the male end of the cord's plug. %PDF-1.4 % 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. 0000010155 00000 n 2.Placed along a wall. a.Yes, as it is a mobile engine testing station. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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 NFPA 70E: Standard for Electrical Safety in the Workplace Select the correct answer and then click DONE. 3.Needs to be reset 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. 3.ack of ground fault protection. Use only extension cords that are 3-wire type. 0000017163 00000 n How will she choose the correct cord? Effective means of controlling power line hazards include: c. Extend the reach of the power tool. 2. Most of the hydrides of Group 1A and Group 2A metals are ionic. The source of the shocks -- the saw -- was not replaced. PDF OSHA Safety - Electrical Safety - Red Vector Water Select the correct answer and then click DONE. 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. 3.The length of time the body is in contact with electricity Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. 1.Pain What are the 4 main type of hazards? [Ultimate Guide!] OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Which of the following are conductor of electricity? Use only extension cords that are marked with a designation code for hard or extra-hard usage. c.The outlet. Does the fall qualify as an electrical accident? Latoya is using a mixing motor to mix pool chemicals in a plastic drum. In which of the following workplace situations are you at risk for coming into contact with live electrical . 4 0 obj [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. If a worker has been retaliated against for using their rights, they Looking for NFPA 70E Certification? 0000004884 00000 n Explosion. 1476 0 obj <>stream Use tools and equipment according to the instructions included in their listing, labeling or certification. b.Yes, because Bob was on . Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 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 An employee was texturing a wall using an air compressor. 0000002876 00000 n How might this event affect the ability of animals to obtain energy to live? While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. d. Power outlets, ________ are anything that can transmit electrical current. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Stay at least 10 feet away from overhead power lines. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream 0000001116 00000 n b.Rod The victim was totally deaf in one ear and suffered diminished hearing in the other. 4.Circuit breakers, When inspecting power tools, look for: One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. Power was supplied through two extension cords from a nearby residence. Select the correct answer and then click DONE. 0000004946 00000 n 0000006152 00000 n a.Yes, because the electrical shock caused the fall. Potential hazards of electricity are preventable if you do which of the following listed below? 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: He plans to use it over a period of at least six months. OSHA Safety and Health Topics Page. When inspecting extension cords, look for: <> 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Check your employee's electrical safety knowledge through an electrical safety quiz. Quiz Question 1: Which of the following is not a category of electrical burns? Dust 3.Loss of eyesight Explain the purpose and use of the MyPlate symbol. Working with electricity can be dangerous. 3. Use only cords, connection devices, and fittings that are equipped with strain relief. 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. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000000816 00000 n D. Have an ANSI sticker and an expiration date. OSHA 30 Construction Final Test Answer Key - Studylib You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 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. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 3.Clear 0000005716 00000 n When current travels through your body - Definition of electric shock. Additionally, the ground prongs were missing from the two cords. 30 days B. OSHA 29 CFR 1910, Subpart P . OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 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. 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! These short objective type questions with answers are very important for competitive exams as well as Board exams. a.Ground Fault Circuit Insulator The accident site was wet; also, humidity was high and the victim was sweating. 1. 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. %PDF-1.4 % De-energizing What do tripped circuit breakers and blown fuses indicate? Question 1: Which of the following is a danger of electricity? Only after a rescue squad arrived about 4 minutes later did anyone realize that the crane was in contact with a power line -- all those present had assumed that the victim had suffered a heart attack. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ eTool : Construction - Electrical Incidents | Occupational Safety and endobj 0000002122 00000 n CCOHS: Electrical Safety - Basic Information b) Staples ( Using tools and equipment that can contact power lines increases the risk. A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. OSHA: How Electricity Works Flashcards | Quizlet Using a dry wood ladder when the possibility exists for contact with electricity. B. outdoors. <>>> Remove cords from receptacles by pulling on the plugs, not the cords. The auger then fell across the other worker, the 24-year-old victim. b.811 The following hazards are the most frequent causes of electrical injuries Contact with power lines, Lack of ground-fault protection, Path to ground missing or discontinuous, Equipment not used in manner prescribed, and Improper use of extension and flexible cords. Electrical Contractors Industry. 0000004208 00000 n d.Add more outlets. 1. Examples of Equipment That Can Contact Power Lines. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? There were no eyewitnesses to the accident, but evidence suggests that while the victim was handling the damaged and energized extension cord, he provided a "path to ground" and was electrocuted. a.Supply power for tools or equipment on a temporary or short-term basis. startxref d.Water, Other electrical hazards in the workplace include: Be sure equipment that has been shop fabricated or altered is in compliance. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. xYmo -ER/&@[D,_! Then answer the questions below. 4. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. Which of the following can be caused by exposure to an arc flash? b.The tool's power cord. Extension cords are used to: Select the correct answer and then click DONE. The following are electrical hazards: Shock. (B) Switch sticks. lb MKS The victim was part of a crew that was constructing a concrete wall. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 0000056642 00000 n When it completes a circuit through the body. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 0000002150 00000 n b.Not wearing insulating shoes or boots when she was handling electrical equipment Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 1.Flammable liquids Select the correct answer and then click DONE. What was Latoya's first mistake? a. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . Is not painted over (3,2,1), (5,4,3). a. Gaseous matter 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.Grounding d. 411, You are working with a 10-foot section of a conductive pipe near power lines. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t 2.Using extension cords or electrical tools properly. 0000000816 00000 n Electrical Hazards - SSOE Group endobj Electrical Safety Quiz-Test Your Electrical Safety Knowledge Question 2: Which of the following are ways employers must protect their employees on the workplace? 2.Complete 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. What three things must be present for a current to flow through a conductor. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. Best Practices with Power Lines Quiz OSHA 30 - Best 4 0 obj Question 1: Which of these is a type of Ground Fault Circuit Adapter? 2.Yes, because he is using a portable power tool. Electrical Safety Quiz - OSHA.net b) By supplying GFCIs, or ground-fault circuit interrupters The following references aid in recognizing hazards associated with electrical work. She has an older drill with a steel housing and a 3-prong plug. 3.Body tissue Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. 3.Draped over equipment. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Protection is lost because it will not trip when the system's load has been exceeded. Frames of non-electrically driven elevator cars to which electric conductors are attached. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q Switch -Wood. c.Three-prong plug 0000012944 00000 n 0000021516 00000 n To avoid injury or death, you must understand and recognize hazards. <> No GFCI's were used. b.10 feet 0000001604 00000 n 0000004965 00000 n a) Door or window edges [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. 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). 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. If a defective power tool gives you an electric shock, how might your muscles react? c.Guaranteed Fault Circuit Interrupter Wearing a baseball cap 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. 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? D. near other electrical equipment. Which of the following are insulators of electricity?