which of the following are electrical hazards osha quizlet

Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 0000002195 00000 n 3. Fire Electrical current travels through insulated ________. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? Death is probable. -Severe skin burns. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. 1.Extension cords What is the minimum clearance distance you must maintain from the power lines? -Wood. b) By supplying GFCIs, or ground-fault circuit interrupters 2.Loose screws Effective means of controlling power line hazards include: True. 0000002385 00000 n How fast would the ball be moving at the moment of release? D. near other electrical equipment. 1.Fingernails OSHA 10-Hour Safety Course - Electrical Safety Page 5 of 5 Use the three-stage safety model to stay safe: recognize, evaluate, and control hazards. 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). 4. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 0000004274 00000 n 4.The amount of current, An electrical burn may affect: 0000014257 00000 n Ground all power supply systems, electrical circuits, and electrical equipment. 0000022637 00000 n <> The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. You need to evaluate the situation you are in and assess your . When does electricity become hazardous to humans? 1. Apparently, his hand contracted and he was "locked" to the saw. Ajay needs to use a dewatering pump to drain standing water on a construction site. The victim was part of a crew that was constructing a concrete wall. Of the following choices, which are frequent electrical hazards Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. 2. 1. _.9u'2G_0 Ue]e"x5|Y [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. Check your employee's electrical safety knowledge through an electrical safety quiz. <> c.911 x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q Best Practices with Power Lines 1. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Be sure equipment that has been shop fabricated or altered is in compliance. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 1.Clench 0000002733 00000 n 0000001861 00000 n Electrical safety quiz answers are given below. 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. 5 feet c.Wood 0000013716 00000 n As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. (D) None of the above. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. -If current passes through the body near the heart or brain. Quiz: Electrical Hazards. 0000007116 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. Select the correct answer and then click DONE. c. No, because the electricity is needed on a long-term basis. 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. q>NmnLNmb$"Iyx1bD9.~Ll. 0000003603 00000 n d. Match the outlet prongs to the extension cord. 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. Burns. 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. Equipment used in manner prescribed. b. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. Electricity will form a "path" or "loop". 0000002122 00000 n Freeze 1.Damaged cover or insulation Is the west coast of Africa a plate boundary? Select the correct answer and then click DONE. 2.Using extension cords or electrical tools properly. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 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. 0000422244 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. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. d.Metal, Over half of all deaths caused by electricity result from contact with ________. 0000001896 00000 n 4. The factors that determine the severity of an electrical injury include: 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 Potential hazards of electricity are preventable if you do which of the following listed below? 1. Extension cords had poor splices, no grounds, and reversed polarity. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 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. a.Electricity Using multi-receptacle boxes designed to be. b.The tool's power cord. 4 0 obj 0000004273 00000 n a.Conductive objects The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. A co-worker disconnected the power cord to the saw, too late to save the victim. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream Electrical Contractors Industry. 0000015549 00000 n 0000002150 00000 n 0000000816 00000 n Which of these can be used as insulating live-line tools for electrical protection. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 3.Something that causes current to flow through the . Using equipment outdoors that is labeled for use only in dry, indoor locations. 1.Flammable liquids c.Guaranteed Fault Circuit Interrupter 3. RZyd What is the primary purpose of properly grounding equipment? Question 4: Which of the following is a type of burn caused by electrical hazards? The following references aid in recognizing hazards associated with electrical work. Does the fall qualify as an electrical accident? 0000001604 00000 n Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Visually inspect all electrical equipment before use. Dust 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. C. near water. The victim was totally deaf in one ear and suffered diminished hearing in the other. . 2.Yes, because he is using a portable power tool. Working with electricity can be dangerous. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. -Grounding= a conductive connection to the earth which acts as a protective measure. 0000003900 00000 n 1476 0 obj <>stream 3.When you are using portable power tools % 2.Grease 0000006866 00000 n Question 2: Which of the following are ways . Question 1: Which of the following is a danger of electricity? <<7628BB2D46738F42B2FC6393656F4718>]>> 2.Loss of muscle control 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. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Other protective measures include guarding or insulating the lines. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Should he use an extension cord to power it? 0000002479 00000 n stream 1 0 obj Which of the following are conductor of electricity? 1452 25 An 18-year-old worker at a construction site was electrocuted when he touched a light fixture while descending from a scaffold for his afternoon break. Use non-conductive wood or fiberglass ladders when working near power lines. a. The contact lasts for 5 seconds before someone is able to shut off the power. 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. he most common shock-related injuries are: The NEC C. Suggestions One hand drill was not grounded, and the other had no safety plate. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 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. Select the correct answer and then click DONE. a.Extension cords (b) The same reaction can also be classified as a redox reaction. Use only extension cords that are marked with a designation code for hard or extra-hard usage. 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. c.Touching the motor c) Establish and enact an assured equipment grounding conductor program (AEGCP) Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. ZR)!=w|; @uT C0? The following are electrical hazards: Shock. 0000420564 00000 n trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream xref (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 2.Using an aluminum ladder when the possibility exists for contact with electricity. 2.Loose bolts Electric current cannot exist without an unbroken path to and from the conductor. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Adapter For 3-Prong Cord Not Grounded To Outlet: On May 27, 1986, two workers were using a 110-volt auger to install tie-down rods for a manufactured home. xYmo -ER/&@[D,_! OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and using a 30-amp breaker in a system with 15- or 20-amp receptacles. 4.No, because he does not need to use an extension cord. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? He yelled for his co-workers to disconnect the power, which they did. 0000007694 00000 n 0000010603 00000 n -Glass. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. d.The body of the power tool. 3.Vapor 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. OSHA 29 CFR 1910, Subpart P . Isolating, Power lines may be located underground. 0000004965 00000 n 3. b.burns. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. Select the correct answer and then click DONE. Bob is asked to repair some overhead wiring, requiring the use a ladder. -Conductor= permits the free flow of electricity. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Examples of Equipment That Can Contact Power Lines. 1. %%EOF 0000414648 00000 n While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 0000005632 00000 n 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: If you are touching any grounded material while using a power tool 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. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Select the correct answer and then click DONE. A) 120v . Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. What do tripped circuit breakers and blown fuses indicate? 0000419562 00000 n d) All of the above. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. In which of the following workplace situations are you at risk for coming into contact with live electrical . <>>> OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 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. Determine duration, frequency, degree of exposure to hazards and physical stress. Question 1: Which of these is a type of Ground Fault Circuit Adapter? [. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. d. 20 feet. 12 months C. 6 months D. Never Q23. 0000017163 00000 n startxref 3.Draped over equipment. A) Identify; Castigate; C) Evaluate; D) Modify; 3. 0000427811 00000 n 2. 5.Twitch, Electrical shock may result in: 0000068035 00000 n Select the correct answer and then click 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. Explosion. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 0000002403 00000 n b.30,000 volts c.40,000 volts Using tools and equipment that can contact power lines increases the risk. B. outdoors. a. Gaseous matter What was Latoya's first mistake? 0000001646 00000 n Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 4.Circuit breakers, When inspecting power tools, look for: Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. B 208v. 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. *Effects are for voltages less than about 600 volts. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 2.Something to transport the electrical current -- A conductor. 1.A source of electrical current to flow. 0000028595 00000 n Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. Provides information about the hazards that electrical workers may experience as a part of their jobs. High humidity Lockout/tagout procedures. The source of the shocks -- the saw -- was not replaced. This may damage your equipment and cause employee injuries. When it completes a circuit through the body. Remove cords from receptacles by pulling on the plugs, not the cords. 0000005406 00000 n d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs lex has set up a mobile engine testing station in the maintenance area. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. s\A0W+ lb MKS Examples Of Electrical Hazards. Is split 30 days B. The ground wire was not attached on the male end of the cord's plug. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Yes, because he will be using electricity near water. gYpV:+ A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. b.811 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: 2.Flooding (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. This is action is also known as creating or completing an electrical circuit. 1. a.20,000 volts 4,600. 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. 1 0 obj 0000057373 00000 n Question 2: Which of the following is NOT a category of electrical burns? 0000004946 00000 n 2.Grounding I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB 0000011060 00000 n Most of the hydrides of Group 1A and Group 2A metals are ionic. Electrocution. 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. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. c.A measurement of electricity Take any defective equipment out of service. What type of burns are the result of current flowing through and exiting the body? The workers administered CPR to the victim, but to no avail. OSHA Safety and Health Topics Page. 0000024814 00000 n View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 2.Skin 2. She has an older drill with a steel housing and a 3-prong plug. -Falls. Besides personal bodily injury, what other electrical hazards can be found in the workplace? OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. 0000012360 00000 n b+t6W' te+.W_{8u7Dt@1c. Which of the following are insulators of electricity? (3,2,1), (5,4,3). Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames).

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