a.Electricity d. heart attacks. 1.Missing RZyd a.Two-prong plug 0000004444 00000 n 2.Loose bolts 4.Must be replaced, Always use a GFCI: 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? Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? 0000008392 00000 n 0000002195 00000 n Remove cords from receptacles by pulling on the plugs, not the cords. Select the choices that accurately define the common electrical term. 0000419562 00000 n Quiz Question 3: Power cords can be damaged by which of the following? What factors determine the severity of Dirk's injuries? Continually audit cords on-site. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 2.Placed along a wall. b+t6W' te+.W_{8u7Dt@1c. Equipment used in manner prescribed. b.811 !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 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. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. 0000422244 00000 n 1.When you are using electricity near water D 600v. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Question 1: Which of the following is a danger of electricity? 0000110659 00000 n Using tools and equipment that can contact power lines increases the risk. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). 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. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Question 4: Which of the following is a type of burn caused by electrical hazards? Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 5.Twitch, Electrical shock may result in: Which of the following part of you body can burn if you come in contact with electricity? You should? I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. 1. B. outdoors. 0000002386 00000 n Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) 0000015549 00000 n Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. 4. Using cords or tools with worn insulation or exposed wires. 1. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. Select the correct answer and then click DONE. -Rubber. 1.Flammable liquids 0000421920 00000 n Explain the purpose and use of the MyPlate symbol. Outlets a.Shut off power within a fraction of a second a.Ground Fault Circuit Insulator Arc Flash. Dust What do tripped circuit breakers and blown fuses indicate? 4.Flex <> 0000004208 00000 n 2 0 obj Select the correct answer and then click DONE. 0000001116 00000 n %PDF-1.4 % 1. Unless you know otherwise, assume that overhead lines are energized. 1.The humidity of the environment The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). 3 0 obj Hand-operated metal shifting ropes or cables of electric elevators. 3. 3.Loose nuts HJ=S~68438IR/:VR C Y<7H*$F>ya)N1bTa+'OdzydV9QS]b{}(=q?pH,mt8{Ag ]wp?2N$AfnhBL!jV=6ho)5jA8H`Bkh{T[v\G%b|4| Eo*cF ]TBGjB[r6)WzCkQ;Bx(]*JG;&o0TV.P=s4Gs(&e~}j76,-6at$]r**-I!o66PqK.z "*D 0000014257 00000 n 4,600. d.The body of the power tool. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 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. 0000005050 00000 n %PDF-1.4 % 0000420887 00000 n 2.Using extension cords or electrical tools properly. Using multi-receptacle boxes designed to be. trailer Do not remove ground prongs from cord- and plug-connected equipment or extension cords. Visually inspect all electrical equipment before use. 0000068035 00000 n This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Lx*jWP# /c2)|]NXqAx>=~'[ c. Match the color of the tool to the color of the extension cord. 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: endobj Wearing a baseball cap <> Effective means of controlling power line hazards include: )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'. 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. hazard or that their employer is not following OSHA's rules. 0000013716 00000 n 0000004793 00000 n The accident site was wet; also, humidity was high and the victim was sweating. Select the correct answer and then click DONE. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. c.Gasoline Use only cords, connection devices, and fittings that are equipped with strain relief. a.Standing in water Extension cords may become a trip hazard when: Additionally, the ground prongs were missing from the two cords. Select the correct answer and then click DONE. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 0000004274 00000 n Best Practices with Power Lines 1. This is action is also known as creating or completing an electrical circuit. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. b) By supplying GFCIs, or ground-fault circuit interrupters Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. a.Conductive objects No Ground-Fault Circuit Interrupters (GFCIs): A journeyman HVAC worker was installing metal duct work using a double-insulated drill connected to a drop light cord. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Take any defective equipment out of service. C. near water. c. Extend the reach of the power tool. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. Which of the following are insulators of electricity? Underground electrical hazards are: A. 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. HWMo#7v#h>6,Z4- 2. 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. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 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. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Does the fall qualify as an electrical accident? d. Match the outlet prongs to the extension cord. c) Establish and enact an assured equipment grounding conductor program (AEGCP) 0000002557 00000 n 1. Be sure equipment that has been shop fabricated or altered is in compliance. Is not painted over 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 Does the fall qualify as an electrical accident? d. Power outlets, ________ are anything that can transmit electrical current. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Should Ajay use a GFCI? Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Which of these can be used as insulating live-line tools for electrical protection. The source of the shocks -- the saw -- was not replaced. Leaving or using electrical appliances near water - As electric current is transmitted faster in on wet surfaces, you stand a chance of getting an electric shock. In addition to contact with power lines, the top electrical hazards include: 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. 2. 0000012360 00000 n 0000089142 00000 n What is the output of the program in Exercise 17, if first = 26 and second = 8? 0000006893 00000 n In which of the following workplace situations are you at risk for coming into contact with live electrical . a.Yes, because the electrical shock caused the fall. When used on the moon? Ground all power supply systems, electrical circuits, and electrical equipment. 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. Some of the causes of these are live wire s that may be lying around, overloaded circuits, explosions that are caused by flammable objects, etc. Which of the following are conductor of electricity? 1. [. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. ZR)!=w|; @uT C0? Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. Select the correct answer and then click DONE. Quiz: Electrical Hazards. 0000004946 00000 n 0000017163 00000 n g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream The ground wire was not attached on the male end of the cord's plug. 2.Complete Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! What was Latoya's first mistake? 0000108653 00000 n A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. SCENARIO: You encounter a co-worker on a residential remodeling job. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. [Flexible Cords and Power Tools]. Death is probable. 2.Is working properly OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. The floor is covered in water and she is barefoot. 3.Something that causes current to flow through the . -Grounding= a conductive connection to the earth which acts as a protective measure. Select the correct answer and then click DONE. Intentionally creating a low-resistance path that connects to the earth. A measure of the energy of motion of the particles in a substance is its _____. 0000001672 00000 n 1. 0000001604 00000 n On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. 0000011060 00000 n A co-worker disconnected the power cord to the saw, too late to save the victim. 0000001646 00000 n Supply power for tools or equipment on a long-term basis. The ________ keeps the electricity on its intended path through the conductor. Cardiac arrest or death - A result of electrical shock. Select the correct answer and then click DONE. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. lb MKS Muscular contraction and nerve damage occur; death likely. The following references aid in recognizing hazards associated with electrical work. He yelled for his co-workers to disconnect the power, which they did. 2.Flooding 0000004273 00000 n 0000420277 00000 n Electrical Hazards Electrical hazards can be found in nearly every roofing work site. a.20,000 volts Overview. %PDF-1.5 c.Wood a.311 1.Clench (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) When does electricity become hazardous to humans? b.Ground Fault Critical Interrupter 2.Loss of muscle control 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload:

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