Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. Water 0000108920 00000 n . endobj Question 2: Which of the following are ways employers must protect their employees on the workplace? Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. eTool : Construction - Electrical Incidents | Occupational Safety and 0000001731 00000 n OSHA 30 Construction Final Test Answer Key - Studylib A measure of the energy of motion of the particles in a substance is its _____. B 208v. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. 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. 0000004884 00000 n a.Standing in water Which of the following are electrical hazards? - Brainly.com View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. The workers administered CPR to the victim, but to no avail. 2.Placed along a wall. d. Match the outlet prongs to the extension cord. A. indoors. Visually inspect all electrical equipment before use. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Select the correct answer and then click DONE. Power was supplied through two extension cords from a nearby residence. 3.Draped over equipment. Electricity becomes hazardous when it takes an unintended path to complete the ________. Select the correct answer and then click on DONE. 4.Running through doorways. Bob is asked to repair some overhead wiring, requiring the use a ladder. 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. 0000055319 00000 n 0000005406 00000 n % Death is probable. <>>> Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. A 120v. d. Power outlets, ________ are anything that can transmit electrical current. The contact lasts for 5 seconds before someone is able to shut off the power. 3. 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. Use tools and equipment according to the instructions included in their listing, labeling or certification. OSHA 10 General Industry Test Answer Key WALKING. B. c.Touching the motor Match the length from job to outlet. c.Guaranteed Fault Circuit Interrupter You should? Best practices with power lines include: Look for overhead power lines and buried power line indicators. (E) a, b, and c. 2. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. a.Your thumb. 0000110659 00000 n b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 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. specifically addresses electrical protective devices. Looking for NFPA 70E Certification? OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. The ground wire was not attached on the male end of the cord's plug. In addition to contact with power lines, the top electrical hazards include: Safe operation of hand and portable powered tools and other hand-held equipment. 4.Cardiac arrest The victim used two extension cords to supply power: a home-made cord plugged into an ungrounded receptacle on the pole, and a UL-approved cord extending from the homemade cord to the saw. CCOHS: Electrical Safety - Basic Information 1. What three things must be present for a current to flow through a conductor. If you are touching any grounded material while using a power tool a.Two-prong plug Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. OSHA: Electrical Hazards Flashcards | Quizlet 0000005734 00000 n Underground electrical hazards are: A. [, Do not modify cords or use them incorrectly. c.Wood OSHA 29 CFR 1910.147 . Computers Select the correct answer and then click DONE. Osha 10 test answers 2021 quizlet - Math Questions d.Metal, Over half of all deaths caused by electricity result from contact with ________. Introduction To Osha Quiz Answers1) Which of the following activities Use only cords, connection devices, and fittings that are equipped with strain relief. 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 4.Circuit breakers, When inspecting power tools, look for: xYmo -ER/&@[D,_! 4.Must be replaced, Always use a GFCI: Study with Quizlet and memorize flashcards containing terms like Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential?, 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., When does electricity become hazardous to humans? The victim provided a path to ground and was electrocuted. 0000419562 00000 n hazard or that their employer is not following OSHA's rules. Electrical hazards are life threatening incidents that could happen due to electricity. 2. endobj c. Match the color of the tool to the color of the extension cord. When current travels through your body - Definition of electric shock. 1. Question 2: Which of the following are ways . 0000002403 00000 n Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) b. -Grounding= a conductive connection to the earth which acts as a protective measure. 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. c.Absorb any water around the area PDF OSHA Safety - Electrical Safety - Red Vector Frames of non-electrically driven elevator cars to which electric conductors are attached. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp Question 1: Which of the following is a danger of electricity? |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s How might this event affect the ability of animals to obtain energy to live? 0000001908 00000 n Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 0000009628 00000 n 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. The factors that determine the severity of an electrical injury include: he most common shock-related injuries are: Extension cords may become a trip hazard when: He may have dropped the extension cord at the site and not heard the connector break. True. -Damage to internal organs. 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. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 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. a. Electrical Contractors Industry. 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 128 0 obj <> endobj xref 128 26 0000000016 00000 n This may damage your equipment and cause employee injuries. Electric current cannot exist without an unbroken path to and from the conductor. An employee was texturing a wall using an air compressor. Get All Answers to OSHA 30 Construction Final Exam. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. This is action is also known as creating or completing an electrical circuit. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 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. Overview. 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. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR <<7628BB2D46738F42B2FC6393656F4718>]>> Quiz Question 9: Conductor insulation must be approved for the ___________ of use? As she is adding in the chemicals, her hand touches the motor and it becomes energized. endobj As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Continually audit cords on-site. _.9u'2G_0 Ue]e"x5|Y 0000012944 00000 n Provide a safe path to earth ground for electricity. RZyd 2.Using extension cords or electrical tools properly. 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Which of the following are conductor of electricity? Frequently inspect electrical systems to insure that the path to ground is continuous. The following are electrical hazards: Shock. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Before using the equipment, be sure that the ground wire: 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. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. Regarding hand protection employers should: A. Fire Besides personal bodily injury, what other electrical hazards can be found in the workplace? 2. 2.Grease Explosion. Supply power for tools or equipment on a long-term basis. 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 Best Practices with Power Lines Quiz OSHA 30 - Best Use only extension cords that are 3-wire type. 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. PDF C. [. Isolating, Power lines may be located underground. d) All of the above. [Flexible Cords and Power Tools]. What type of burns are the result of current flowing through and exiting the body? As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. b.Metal trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream 0000000016 00000 n (3,2,1), (5,4,3). 12 months C. 6 months D. Never Q23. Switch Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Explosion Is the west coast of Africa a plate boundary? 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. 1. 2.Flooding 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. a.Ground Fault Circuit Insulator OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Quiz: Electrical Hazards. 0000002195 00000 n c.Gasoline 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. Use only equipment that is approved to meet OSHA standards. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 3 0 obj Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 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. 0000004686 00000 n Explain the purpose and use of the MyPlate symbol. b. Deductive objects True. The victim was part of a crew that was constructing a concrete wall. Unless you know otherwise, assume that overhead lines are energized. Should Ajay use a GFCI? A fan connected to a 120-volt electrical system via an extension cord provided ventilation for a worker performing a chipping operation from an aluminum stepladder. 2.The person's physical condition OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet %PDF-1.4 % Using cords or tools with worn insulation or exposed wires. 3.Tears qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 2.Is working properly Improper Use of Extension and Flexible Cords. 3.No, because he will not be touching any grounded material when using the tool. lb MKS PDF Working Safely with Electricity - Occupational Safety and Health The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. endobj 1.Flammable liquids When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 0000007464 00000 n d.50,000 volts. Select the correct answer and then click DONE. a.311 0000015549 00000 n OSHA 29 CFR 1910, Subpart S . b. 0000001495 00000 n The following references aid in recognizing hazards associated with electrical work. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. When used on the moon? d.Adapter, What is a GFCI? The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. startxref d.Alert workers of any water in the area, GFCI is an acronym for: *Effects are for voltages less than about 600 volts. 0000007741 00000 n 0000006866 00000 n 4.Flex Additionally, the ground prongs were missing from the two cords. D 600v. Take any defective equipment out of service. 0000001814 00000 n 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. Best Practices with Power Lines 1. 2 0 obj Quiz Question 7: Which is not an insulator? . Death. Which of the following are caused by contact with electricity? 0000002479 00000 n Hand-operated metal shifting ropes or cables of electric elevators. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. d. 20 feet. 0000021516 00000 n Electrical Hazards - SSOE Group <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000022637 00000 n c. Extend the reach of the power tool. 1.Fingernails Quiz Question 2: Which is acceptable when using powdered tools? 1.Clench d. heart attacks. Used across walkways. 1.Is faulty Which of the following can be caused by exposure to an arc flash? b) By supplying GFCIs, or ground-fault circuit interrupters The victim collapsed into the lake and sank 4-1/2 feet to the bottom. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. 0000013999 00000 n OSHA 10 - Electrical Flashcards | Quizlet 1.When you are using electricity near water Contact utilities for buried power line locations. <> 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 c.40,000 volts Which of these can be used as insulating live-line tools for electrical protection. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 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. 4,600. a.20,000 volts OSHA 29 CFR 1910, Subpart P . Which of the following factors determine how severe an electrical injury might be? Should he use an extension cord to power it? NFPA 70E: Standard for Electrical Safety in the Workplace 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.A source of electrical current to flow. [29 CFR 1926.416(a)(1)]. xref Then answer the questions below. 0000002733 00000 n Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 0000010155 00000 n 0000004946 00000 n :$#k9BPnZ{Qqe/reKy,'ZlB# Burns. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. %PDF-1.4 % 0000002122 00000 n 3.Cramp (B) Switch sticks. electrical safety part 1 Flashcards | Quizlet Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. 0000003771 00000 n Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 4. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Check your employee's electrical safety knowledge through an electrical safety quiz. 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. Effective means of controlling power line hazards include: 1.Pain 0000002876 00000 n 0000006893 00000 n Select the correct answer and then click DONE. c.Power lines 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. 0000017336 00000 n a. It's okay to use extension cords with worn insulation, as . 1. De-energize and ground lines when working near them. High humidity 0000014257 00000 n Identify the oxidizing and reducing agents. Select the correct answer and then click DONE. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: When does electricity become hazardous to humans? 1452 25 which of the following are electrical hazards osha quizlet 0000007427 00000 n 1.Missing Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Select the correct answer and then click DONE. 0000007116 00000 n To avoid injury or death, you must understand and recognize hazards.
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