Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. Work performed on an electrical system within reaching distance of energized components is_____work. b.10 feet Frequently inspect electrical systems to insure that the path to ground is continuous. a.Yes, because the electrical shock caused the fall. 4.Cardiac arrest 1452 0 obj <> endobj H. 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. 0000108653 00000 n As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. 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. Select the correct answer and then click DONE. 0000002150 00000 n When does electricity become hazardous to humans? b.Yes, because Bob was on . 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. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q 1 0 obj 4.Circuit breakers, When inspecting power tools, look for: BE SAFE! Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Check your employee's electrical safety knowledge through an electrical safety quiz. (3,2,1), (5,4,3). h|UnH}+i-. 4. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW` { endstream endobj 191 0 obj [/ICCBased 211 0 R] endobj 192 0 obj <> endobj 193 0 obj <> endobj 194 0 obj <> endobj 195 0 obj <> endobj 196 0 obj <>stream You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 5 feet 2.Using extension cords or electrical tools properly. 0000003640 00000 n d. 20 feet. Lx*jWP# /c2)|]NXqAx>=~'[ b.Yes, as it would be too expensive to install more permanent wiring and receptacles. What three things must be present for a current to flow through a conductor. d.50,000 volts. a.Shut off power within a fraction of a second Draw a line from the item on the left that corresponds to the match on the right. 4,600. Switch Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. 4.Running through doorways. What type of burns are the result of current flowing through and exiting the body? Should Ajay use a GFCI? 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. using a 30-amp breaker in a system with 15- or 20-amp receptacles. True. It's okay to use extension cords with worn insulation, as . Visually inspect all electrical equipment before use. Electrical current travels through insulated ________. 0000005734 00000 n 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 1.Flammable liquids @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ To be safe, you must think about your job and plan for hazards. 0000003603 00000 n Electricity will form a "path" or "loop". Extension cords had poor splices, no grounds, and reversed polarity. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Use tools and equipment according to the instructions included in their listing, labeling or certification. C 277v. b.Metal Besides personal bodily injury, what other electrical hazards can be found in the workplace? Test your knowledge with our electrical safety quiz below. d. No, because an extension cord would not provide enough power. 0000006152 00000 n 1.Damaged cover or insulation 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. [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. Look for overhead power lines and buried power line indicators. This may damage your equipment and cause employee injuries. endobj Select the correct answer and then click DONE. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Is split 0000024814 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. 4. Outlets Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. 0000000816 00000 n OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet 0000057373 00000 n The ________ keeps the electricity on its intended path through the conductor. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Isolating, Power lines may be located underground. When inspecting extension cords, look for: A co-worker disconnected the power cord to the saw, too late to save the victim. Stay at least 10 feet away from overhead power lines. 0000013999 00000 n 0000001672 00000 n -If current passes through the body near the heart or brain. Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries 2.Loss of muscle control Easy to identify 3.The length of time the body is in contact with electricity You should? 0000013716 00000 n 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 0000108920 00000 n Apparently, his hand contracted and he was "locked" to the saw. The floor is covered in water and she is barefoot. 128 0 obj <> endobj xref 128 26 0000000016 00000 n Quiz Question 9: Conductor insulation must be approved for the ___________ of use? b. Deductive objects Used across walkways. Question 1: Which of these is a type of Ground Fault Circuit Adapter? Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 2. s\A0W+ What is the most common, non-fatal, electrical shock-related injury? Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Safe operation of hand and portable powered tools and other hand-held equipment. OSHA 30 Construction Final Test Answer Key - Studylib The victim was part of a crew that was constructing a concrete wall. 2.Something to transport the electrical current -- A conductor. Of the following choices, which are frequent electrical hazards d.Adapter, What is a GFCI? 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. Carly needs to use an extension cord with her corded nail gun. 0000420277 00000 n Select the correct answer and then click DONE. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. endobj (See NFPA 70E-2021 Article 130 and OSHA subpart S part . 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 hazards are life threatening incidents that could happen due to electricity. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 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. 0000004273 00000 n When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 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. 1. 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. 4. Select the correct answer and then click DONE. Select the choices that accurately define the common electrical term. 1. PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. c. Inductive objects 3.Something that causes current to flow through the . Quiz: Electrical Hazards. 4.No, because he does not need to use an extension cord. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 30 days B. 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$]r**-I!o66PqK.z "*D (A) Shotgun sticks. Determine duration, frequency, degree of exposure to hazards and physical stress. % 0000002386 00000 n c.A measurement of electricity In which of the following workplace situations are you at risk for coming into contact with live electrical . 1. Ajay needs to use a dewatering pump to drain standing water on a construction site. 3.Cramp Which of the following injuries can occur when muscles flex or twitch from an electrical shock? The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. What factors determine the severity of Dirk's injuries? a.Conductive objects Then answer the questions below. Death. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. OSHA: How Electricity Works Flashcards | Quizlet Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. . How will she choose the correct cord? 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. D. Have an ANSI sticker and an expiration date. d. Power outlets, ________ are anything that can transmit electrical current. The modification of the plug was not an intended use or prescribed by the manufacturer. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. d.Metal, Over half of all deaths caused by electricity result from contact with ________. The small electrical current enters his body through his left leg. A measure of the energy of motion of the particles in a substance is its _____. Power was supplied through two extension cords from a nearby residence. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). endobj 12 months C. 6 months D. Never Q23. 3 0 obj [. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Which of the following are conductor of electricity? High humidity Question 1: Which of the following is a danger of electricity? 0000001814 00000 n Is the west coast of Africa a plate boundary? PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS <>>> 0000003771 00000 n Using a dry wood ladder when the possibility exists for contact with electricity. q>NmnLNmb$"Iyx1bD9.~Ll. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. vpfuI)],s Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. B. outdoors. 0000005632 00000 n 0000002557 00000 n (B) Switch sticks. . Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 1.The humidity of the environment 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: 0000004686 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. 1.Is faulty 3.Tears xYmo -ER/&@[D,_! Select the correct answer and then click DONE. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. When used on the moon? 0000011060 00000 n 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. What is the primary purpose of properly grounding equipment? 1.Is firmly connected A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. The driver stopped the truck under the power line, and the victim, not realizing that the truck had moved, swung the boom to position the bucket behind the truck. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: The source of the shocks -- the saw -- was not replaced. PDF Electrical Hazards - Occupational Safety and Health Administration Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. 2.Is working properly Which of the following are insulators of electricity? c.Three-prong plug The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 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: Select the correct answer and then click DONE. 3. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. The factors that determine the severity of an electrical injury include: 0000004946 00000 n 21 Examples Of Electrical Hazards - HSEWatch 0000004793 00000 n The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. 1.When you are using electricity near water The ground wire was not attached on the male end of the cord's plug. c. Match the color of the tool to the color of the extension cord. 182 0 obj <> endobj xref 182 41 0000000016 00000 n Frames of non-electrically driven elevator cars to which electric conductors are attached. Extension cords are used to: This is action is also known as creating or completing an electrical circuit. Fire B 208v. What was Latoya's first mistake? %PDF-1.4 % These short objective type questions with answers are very important for competitive exams as well as Board exams. Using equipment outdoors that is labeled for use only in dry, indoor locations. a.20,000 volts 0000000816 00000 n g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 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. Explosion When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Co-workers provided CPR, but were unable to revive the victim. No GFCI's were used. trailer 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. 4.Must be replaced, Always use a GFCI: Occupational Safety & Health Administration, Death Due to Lack of Ground-Fault Protection, Deaths Due to Missing or Discontinuous Path to Ground, Deaths Due to Equipment Not Used in Manner Prescribed, Deaths Due to Improper Use of Extension and Flexible Cords, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Improper use of extension and flexible cords, Electrical Safety: Safety and Health for Electrical Trades Student Manual, ground-fault circuit interrupters (GFCI)s, assured equipment grounding conductor program (AEGCP), Electricity and Tree Care Work A Deadly Combination, Working Safely Around Downed Electrical Wires, Electrical Safety Hazards of Overloading Cable Trays, Small Business Safety and Health Handbook, Fire Fighters Exposed to Electrical Hazards During Wildland Fire Operations, Fatality Assessment and Control Evaluation (FACE) Program, NIOSH Face Reports Indexed by Industry or Cause of Fatality, Worker Deaths by Electrocution: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance. 1.Cuts Lockout/tagout procedures. . Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) 0000422244 00000 n a. Gaseous matter c.Gasoline d.Alert workers of any water in the area, GFCI is an acronym for: Continually audit cords on-site. Effective means of controlling power line hazards include: OSHA requires the testing of a volt meter after a voltage test on voltage above_____. A. wrap tape around the damaged spot to prevent electrical shocks. RZyd Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Question 2: Which of the following are ways . 3.ack of ground fault protection. startxref Electrocution. 0000017336 00000 n ( Visually inspect all electrical equipment before use. In addition to contact with power lines, the top electrical hazards include: 0000003900 00000 n HWMo#7v#h>6,Z4- _5JKy. Most of the hydrides of Group 1A and Group 2A metals are ionic. -Severe skin burns. An employee was texturing a wall using an air compressor. V1?`T`P``ya W3 |"H36K1A@, rO(V[|NAT30 qI? endstream endobj 221 0 obj <>/Filter/FlateDecode/Index[30 152]/Length 27/Size 182/Type/XRef/W[1 1 1]>>stream A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. a. 2.Flooding Quiz Question 7: Which is not an insulator? 0000427811 00000 n |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Extension cords may become a trip hazard when: Do not remove ground prongs from cord- and plug-connected equipment or extension cords. Select the correct answer and then click DONE. 1.Extension cords b.Rod OSHA 10 General Industry Test Answer Key WALKING. 0000002385 00000 n OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. OSHA 10 - Electrical Flashcards | Quizlet 0000002195 00000 n PDF Working Safely with Electricity - Occupational Safety and Health 2. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 0000006893 00000 n d.Add more outlets. Question 2: Which of the following is NOT a category of electrical burns? 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. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. The most dangerous place to use electrical equipment is? Other protective measures include guarding or insulating the lines. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 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 0000007427 00000 n D. near other electrical equipment. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. 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. NFPA 70E: Standard for Electrical Safety in the Workplace *Effects are for voltages less than about 600 volts. 0000004965 00000 n 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. 0000004208 00000 n 0000002876 00000 n Use only cords, connection devices, and fittings that are equipped with strain relief. She has an older drill with a steel housing and a 3-prong plug. 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. When current travels through your body - Definition of electric shock. Arc Flash. 4. a.Electricity c. Extend the reach of the power tool. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 1.Pain 5. Using cords or tools with worn insulation or exposed wires. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. -Grounding= a conductive connection to the earth which acts as a protective measure. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream 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. 2.Complete 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. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 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. <> 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. 0000028595 00000 n (b) The same reaction can also be classified as a redox reaction. 0000001908 00000 n SCENARIO: You encounter a co-worker on a residential remodeling job. Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow
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