Additionally, the ground prongs were missing from the two cords. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) Quiz Question 3: Power cords can be damaged by which of the following? specifically addresses electrical protective devices. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 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. View Answer Answer: 600v 4 . gYpV:+ :$#k9BPnZ{Qqe/reKy,'ZlB# It is important to note that NFPA 70E is a . Electricity will form a "path" or "loop". 0000013716 00000 n 0000013999 00000 n How will she choose the correct cord? Protection is lost because it will not trip when the system's load has been exceeded. 0000056642 00000 n 1.Clench 0000021516 00000 n 0000010155 00000 n BE SAFE! 3.Cramp Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 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. 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). Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 0000007464 00000 n Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 4. a. You need to evaluate the situation you are in and assess your . 0000002479 00000 n 0000005050 00000 n [Flexible Cords and Power Tools]. Select the correct answer and then click DONE. 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. 0000006866 00000 n Of the following choices, which are frequent electrical hazards 0000017336 00000 n d.Constructive objects, Select all answers that apply to the following statement and then click DONE. When an electric shock occurs, your muscles may: Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 5.Twitch, Electrical shock may result in: 0000108653 00000 n c. Match the color of the tool to the color of the extension cord. Isolating, Power lines may be located underground. SCENARIO: You encounter a co-worker on a residential remodeling job. A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. Identify the oxidizing and reducing agents. 0000015549 00000 n Which of the following factors determine how severe an electrical injury might be? a.Your thumb. 2. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. 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) 120v . c.A measurement of electricity Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 3 0 obj d.Add more outlets. 1. OSHA Safety and Health Topics Page. <>>> . B 208v. 1.When you are using electricity near water True. 0000005716 00000 n 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! a.20,000 volts b.A fast-acting switch monitoring current flow endobj Does the fall qualify as an electrical accident? Select the correct answer and then click DONE. 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 Hand-operated metal shifting ropes or cables of electric elevators. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. Which of the following are insulators of electricity? 2.Complete 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: Using equipment outdoors that is labeled for use only in dry, indoor locations. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. -Severe skin burns. Unless you know otherwise, assume that overhead lines are energized. Before using the equipment, be sure that the ground wire: 128 0 obj <> endobj xref 128 26 0000000016 00000 n d. heart attacks. 2. Muscular contraction and nerve damage occur; death likely. startxref Looking for NFPA 70E Certification? Draw a line from the item on the left that corresponds to the match on the right. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. 4. 0000001861 00000 n d.A power tool, A GFCI is designed to: Select the correct answer and then click DONE. Electrical Contractors Industry. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. Electrical current travels through insulated ________. . 0000001814 00000 n Test your knowledge with our electrical safety quiz below. <>>> endobj c. Inductive objects 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. 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 Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). a.Yes, because the electrical shock caused the fall. A measure of the energy of motion of the particles in a substance is its _____. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. endobj Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. What is the primary purpose of properly grounding equipment? 0000002733 00000 n To avoid injury or death, you must understand and recognize hazards. Wearing a baseball cap % vpfuI)],s qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Is the west coast of Africa a plate boundary? Visually inspect all electrical equipment before use. [, Do not modify cords or use them incorrectly. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Is split (C) Hot sticks. Ground all power supply systems, electrical circuits, and electrical equipment. Should he use an extension cord to power it? a.Yes, as it is a mobile engine testing station. 0000421627 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. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. a. Gaseous matter Work performed on an electrical system within reaching distance of energized components is_____work. 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: c) Establish and enact an assured equipment grounding conductor program (AEGCP) Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. A) Identify; Castigate; C) Evaluate; D) Modify; 3. Which of the following are caused by contact with electricity? NFPA 70E defines those special circumstances and sets rigid electrical safety limits on voltage exposures, work zone boundary requirements and necessary personal protective equipment (PPE). Look for overhead power lines and buried power line indicators. 0000007741 00000 n B. outdoors. 1.Fingernails 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. <> ( Extension cords are used to: 4.Must be replaced, Always use a GFCI: 1.Flammable liquids 0000001672 00000 n An employee was texturing a wall using an air compressor. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. He plans to use it over a period of at least six months. b.Shut off power within five minutes of the imbalance These short objective type questions with answers are very important for competitive exams as well as Board exams. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Extension cords may become a trip hazard when: Co-workers provided CPR, but were unable to revive the victim. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. 0000005632 00000 n 1.Missing or broken path to ground. Should Ajay use a GFCI? The victim was part of a crew that was constructing a concrete wall. Select the correct answer and then click DONE. The victim provided a path to ground and was electrocuted. 0000018681 00000 n 0000002150 00000 n b+t6W' te+.W_{8u7Dt@1c. In which of the following workplace situations are you at risk for coming into contact with live electrical . Question 1: Which of these is a type of Ground Fault Circuit Adapter? Be sure equipment that has been shop fabricated or altered is in compliance. The workers administered CPR to the victim, but to no avail. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. 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. Underground electrical hazards are: A. Take any defective equipment out of service. Additionally, the ground prong was missing and there was no GFCI protection. c.911 Using multi-receptacle boxes designed to be. Lockout/tagout procedures. 1.Pain Cardiac arrest or death - A result of electrical shock. 0000000816 00000 n 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. 0000010603 00000 n Equipment used in manner prescribed. Select the correct answer and then click DONE. 1. OSHA 29 CFR 1910, Subpart S . A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. 2.Flooding a.Ground Fault Circuit Insulator The small electrical current enters his body through his left leg. Dust 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? 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp 1452 0 obj <> endobj Intentionally creating a low-resistance path that connects to the earth. 0000002403 00000 n D. Have an ANSI sticker and an expiration date. Determine duration, frequency, degree of exposure to hazards and physical stress. lb MKS 2. d.Metal, Over half of all deaths caused by electricity result from contact with ________. In addition to contact with power lines, the top electrical hazards include: Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 0 a.related to muscle damage. a.Shut off power within a fraction of a second a) Ensure overhead power line safety 1.Is faulty c.The outlet. (3,2,1), (5,4,3). Examples Of Electrical Hazards. 3.Body tissue 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 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 [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. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. 0000005734 00000 n After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: OSHA 10 General Industry Test Answer Key WALKING. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: Additional minimum clearance distance is required for power lines carrying over ________. 1. Provide a safe path to earth ground for electricity. If electrical equipment is used in ways for which it is not designed, you can no longer depend on safety features built in by the manufacturer. Question 1: Which of the following is a danger of electricity? 1476 0 obj <>stream The NEC C. Suggestions Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. b.Electrical tools Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. Which of these can be used as insulating live-line tools for electrical protection. a. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 2.Using an aluminum ladder when the possibility exists for contact with electricity. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. 0000414648 00000 n 0000009628 00000 n She has an older drill with a steel housing and a 3-prong plug. 3. 3.No, because he will not be touching any grounded material when using the tool. 0000419562 00000 n d) All of the above. 3. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 4. Select the correct answer and then click DONE. 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. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. Electrical safety quiz answers are given below. 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. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs %PDF-1.4 % RZyd 2.Grounding Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Electrical hazards are life threatening incidents that could happen due to electricity. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Best Practices with Power Lines 1. %PDF-1.5 D 600v. a) Door or window edges Due to the dynamic, rugged nature of construction work, normal use of electrical equipment at your site causes wear and tear that results in insulation breaks, short-circuits, and exposed wires. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 0000055319 00000 n Do not remove ground prongs from cord- and plug-connected equipment or extension cords. What is the output of the program in Exercise 17, if first = 26 and second = 8? 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 0000017163 00000 n 4 0 obj -Voltage= a measure of electrical force. 182 0 obj <> endobj xref 182 41 0000000016 00000 n -Falls. 2. Use only cords, connection devices, and fittings that are equipped with strain relief. 1.The humidity of the environment HWMo#7v#h>6,Z4- 0000420564 00000 n The power switch on the welder was already in the "on" position, and the female end of the extension cord, which was spring loaded, had apparently been dropped and broken. He may have dropped the extension cord at the site and not heard the connector break. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. When does electricity become hazardous to humans? uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 4,600. c.Wood While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 1. Explain the purpose and use of the MyPlate symbol. 3.Draped over equipment. Provides information about the hazards that electrical workers may experience as a part of their jobs. %PDF-1.4 % 3.The length of time the body is in contact with electricity d.50,000 volts. Select the correct answer and then click DONE. . 3.Loss of eyesight a.Supply power for tools or equipment on a temporary or short-term basis. 0000004274 00000 n The laborer, who was wearing leather gloves, received an electric shock and dropped the wire reinforcement, which fell across the power line and simultaneously contacted the metal rail of the scaffold, energizing the entire scaffold.

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