10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. BE SAFE! Latoya is using a mixing motor to mix pool chemicals in a plastic drum. Dust 0000002122 00000 n Remove cords from receptacles by pulling on the plugs, not the cords. a) Ensure overhead power line safety -Damage to internal organs. Look for overhead power lines and buried power line indicators. He yelled for his co-workers to disconnect the power, which they did. Draw a line from the item on the left that corresponds to the match on the right. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? If you are touching any grounded material while using a power tool 3.The length of time the body is in contact with electricity 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: Before using the equipment, be sure that the ground wire: De-energizing a.311 Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) b.Rod 0000009628 00000 n Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 4.Flex Death. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Cardiac arrest or death - A result of electrical shock. c.Absorb any water around the area d. Match the outlet prongs to the extension cord. c.The outlet. A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. 0000014257 00000 n 0000013999 00000 n The auger then fell across the other worker, the 24-year-old victim. b) Staples This caused him to fall from the ladder and land in a puddle of water, still holding the saw. % b.811 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.Grounding OSHA will keep all identities confidential. How might this event affect the ability of animals to obtain energy to live? The victim signaled the operator of the crane to extend the boom and lower the hoist cable. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. What is the minimum clearance distance you must maintain from the power lines? 3. When used on the moon? 0000017163 00000 n 2. c. No, because the electricity is needed on a long-term basis. endobj 0000057373 00000 n 2.Is working properly a. b.30,000 volts The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Electrical safety quiz answers are given below. 0000001908 00000 n The workers administered CPR to the victim, but to no avail. Test your knowledge with our electrical safety quiz below. 1 0 obj Select the correct answer and then click DONE. Used across walkways. 0000419562 00000 n 0000421920 00000 n Quiz Question 3: Power cords can be damaged by which of the following? 0000011060 00000 n What is the primary purpose of properly grounding equipment? Should Ajay use a GFCI? Using a dry wood ladder when the possibility exists for contact with electricity. <> Which of the following part of you body can burn if you come in contact with electricity? Additionally, the ground prongs were missing from the two cords. The source of the shocks -- the saw -- was not replaced. Extension cords had poor splices, no grounds, and reversed polarity. b+t6W' te+.W_{8u7Dt@1c. High humidity Best Practices with Power Lines 1. 0000007464 00000 n Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. a. Gaseous matter %%EOF He may have dropped the extension cord at the site and not heard the connector break. b.Ground Fault Critical Interrupter 2.Something to transport the electrical current -- A conductor. a) Door or window edges Ground all exposed metal parts of equipment. c. Match the color of the tool to the color of the extension cord. and more. How will she choose the correct cord? Frames of non-electrically driven elevator cars to which electric conductors are attached. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. Other protective measures include guarding or insulating the lines. 0000006152 00000 n You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 0000001604 00000 n d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 2.Grease Identify the oxidizing and reducing agents. 2. This is action is also known as creating or completing an electrical circuit. C 277v. If a defective power tool gives you an electric shock, how might your muscles react? D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. B 208v. Post warning signs. 0000003715 00000 n 0000005520 00000 n A) Identify; Castigate; C) Evaluate; D) Modify; 3. 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. B. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. She has an older drill with a steel housing and a 3-prong plug. gYpV:+ Use tools and equipment according to the instructions included in their listing, labeling or certification. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. d. Power outlets, ________ are anything that can transmit electrical current. 1. 0000007741 00000 n Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. stream 1 0 obj 2.Placed along a wall. 0000015549 00000 n A) 120v . 1. 2.Yes, because he is using a portable power tool. ( 0000002150 00000 n 0000108920 00000 n 2.Flooding d.Metal, Over half of all deaths caused by electricity result from contact with ________. % Burns. 4.The amount of current, An electrical burn may affect: Is not painted over 4. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Visually inspect all electrical equipment before use. a.Standing in water 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 4. c.40,000 volts D. near other electrical equipment. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. When inspecting extension cords, look for: Then answer the questions below. c.Guaranteed Fault Circuit Interrupter 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 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. 1. d.Water, Other electrical hazards in the workplace include: 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: 1.Using a fiberglass ladder when the possibility exists for contact with electricity. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Select the correct answer and then click DONE. A 120v. [, Use all equipment according to the manufacturer's instructions. 0000004273 00000 n Equipment used in manner prescribed. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. <> 3.Clear I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB The modification of the plug was not an intended use or prescribed by the manufacturer. xYmo -ER/&@[D,_! Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. OSHA 29 CFR 1910.147 . 4. D 600v. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? b.Metal 0000004274 00000 n 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. -Grounding= a conductive connection to the earth which acts as a protective measure. Electrical hazards are life threatening incidents that could happen due to electricity. specifically addresses electrical protective devices. Ground all power supply systems, electrical circuits, and electrical equipment. -Current= the movement of electrical charge. Underground electrical hazards are: A. Use only equipment that is approved to meet OSHA standards. 1.The humidity of the environment OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. b.Not wearing insulating shoes or boots when she was handling electrical equipment Before work began, the company safety director made sure that insulated line hoses were placed over sections of the the power line near the jobsite and that a safety clearance zone was marked off for arriving cement trucks. a.related to muscle damage. 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. _.9u'2G_0 Ue]e"x5|Y 0000055319 00000 n <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Fire 0000003603 00000 n 12 months C. 6 months D. Never Q23. Looking for NFPA 70E Certification? Question 2: Which of the following is NOT a category of electrical burns? -Glass. Quiz: Electrical Hazards. The victim was totally deaf in one ear and suffered diminished hearing in the other. 182 0 obj <> endobj xref 182 41 0000000016 00000 n <<7628BB2D46738F42B2FC6393656F4718>]>> Lx*jWP# /c2)|]NXqAx>=~'[ These short objective type questions with answers are very important for competitive exams as well as Board exams. 4. Select the correct answer and then click DONE. 0000012944 00000 n endobj An employee was texturing a wall using an air compressor. 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. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Select the correct answer and then click on DONE. She finds several available in the shop. . H\n0)M) 0Ir(,?FoKhdklz6zHG;mOqOh-tv.]NGv~d.m\S{|Fo-x-\"1X/niCYeq"ol8D~&?Kr V_/9yf 9JV%J899s{_G#R0="dL5,p: The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). In which of the following workplace situations are you at risk for coming into contact with live electrical . Is the west coast of Africa a plate boundary? Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 1.Extension cords 2.The person's physical condition The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. 3.Loose nuts qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 0000010603 00000 n 0000010155 00000 n Which of the following are caused by contact with electricity? According to NFPA 70E, job briefings must be held for those employees that will be working on or near live parts operating at ______ or more. An 18-year-old worker at a construction site was electrocuted when he touched a light fixture while descending from a scaffold for his afternoon break. 0000007427 00000 n 1.A source of electrical current to flow. b.Shut off power within five minutes of the imbalance 0000003413 00000 n Provides information about the hazards that electrical workers may experience as a part of their jobs. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Supply power for tools or equipment on a long-term basis. trailer 0000007116 00000 n B. outdoors. <>>> Extension cords may become a trip hazard when: Protection is lost because it will not trip when the system's load has been exceeded. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 0000000816 00000 n 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. Select the correct answer and then click DONE. 3. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 0000004444 00000 n 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. If a worker has been retaliated against for using their rights, they endobj -Severe skin burns. Does the fall qualify as an electrical accident? 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. hbb``b``3N0  endstream endobj 183 0 obj <>/Metadata 28 0 R/Names 184 0 R/Outlines 23 0 R/Pages 27 0 R/StructTreeRoot 30 0 R/Type/Catalog/ViewerPreferences<>>> endobj 184 0 obj <> endobj 185 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/Properties<>>>/Rotate 0/StructParents 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 186 0 obj <> endobj 187 0 obj <> endobj 188 0 obj <>stream Explain the purpose and use of the MyPlate symbol. -Rubber. c.Wood 0000420887 00000 n Does the fall qualify as an electrical accident? c. Inductive objects As she is adding in the chemicals, her hand touches the motor and it becomes energized. OSHA 29 CFR 1910, Subpart P . Yes, because he will be using electricity near water. Select the correct answer and then click DONE. Use only cords, connection devices, and fittings that are equipped with strain relief.