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A. wrap tape around the damaged spot to prevent electrical shocks. c.The outlet. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires Lockout/tagout procedures. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 4.Circuit breakers, When inspecting power tools, look for: Osha 10 test answers 2021 quizlet - Math Questions Arc Flash. <> When current travels through your body - Definition of electric shock. Provide a safe path to earth ground for electricity. 0000004921 00000 n d) All of the above. 3. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. b.30,000 volts OSHA will keep all identities confidential. Remove cords from receptacles by pulling on the plugs, not the cords. Stay at least 10 feet away from overhead power lines. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Switch hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Wearing a baseball cap g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream Which of the following are insulators of electricity? Question 1: Each year, approximately __________ workers suffer from electricity related injuries. 0000002150 00000 n trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream 2.Complete . 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. q>NmnLNmb$"Iyx1bD9.~Ll. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Question 1: Which of these is a type of Ground Fault Circuit Adapter? Explain the purpose and use of the MyPlate symbol. a.A small current Select the choices that accurately define the common electrical term. 0000001896 00000 n The modification of the plug was not an intended use or prescribed by the manufacturer. b.10 feet . b) Staples Electrical current travels through insulated ________. endobj Electrical Contractors Industry. 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. Work performed on an electrical system within reaching distance of energized components is_____work. OSHA 10 - Electrical Flashcards | Quizlet Check your employee's electrical safety knowledge through an electrical safety quiz. 1. Does the fall qualify as an electrical accident? 3.Cramp Visually inspect all electrical equipment before use. 1. Using equipment outdoors that is labeled for use only in dry, indoor locations. A measure of the energy of motion of the particles in a substance is its _____. OSHA: Common Electrical Hazards Flashcards | Quizlet In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. 0000013999 00000 n 0000003254 00000 n Which of the following factors determine how severe an electrical injury might be? 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. OSHA 29 CFR 1910.147 . Should Ajay use a GFCI? When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. (B) Switch sticks. 2.Something to transport the electrical current -- A conductor. 0000004274 00000 n Potential hazards of electricity are preventable if you do which of the following listed below? Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. Electrical Safety Quiz - OSHA.net 3.Vapor 1.A source of electrical current to flow. Using cords or tools with worn insulation or exposed wires. An employee was texturing a wall using an air compressor. How fast would the ball be moving at the moment of release? 1.Flammable liquids d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 0000006893 00000 n Which of the following are electrical hazards? - Brainly.com Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. 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. d. Power outlets, ________ are anything that can transmit electrical current. Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy Test your knowledge with our electrical safety quiz below. 2.Yes, because he is using a portable power tool. 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. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS d.Water, Other electrical hazards in the workplace include: 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. Looking for NFPA 70E Certification? Electric current cannot exist without an unbroken path to and from the conductor. As she is adding in the chemicals, her hand touches the motor and it becomes energized. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. Freeze 0000007741 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. 0000002122 00000 n 2.Grounding 1.Missing or broken path to ground. OSHA 29 CFR 1910, Subpart P . Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. d. No, because an extension cord would not provide enough power. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. 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 2.Is working properly a.Two-prong plug 0000002386 00000 n As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. What is the most common, non-fatal, electrical shock-related injury? A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. s\A0W+ Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 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. Dust 0000000816 00000 n If a defective power tool gives you an electric shock, how might your muscles react? Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 0000001604 00000 n 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 source of the shocks -- the saw -- was not replaced. Extension cords are used to: Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) True. Ground all power supply systems, electrical circuits, and electrical equipment. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. NFPA 70E: Standard for Electrical Safety in the Workplace [Flexible Cords and Power Tools]. Is the west coast of Africa a plate boundary? The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Easy to identify The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 1.Cuts 2 0 obj 0000015549 00000 n 0000001814 00000 n c.A measurement of electricity 0000024814 00000 n OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. -Damage to internal organs. a) Door or window edges 1.Missing Best practices with power lines include: The NEC C. Suggestions 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). (D) None of the above. Which group would be more accurate when used in an accelerating spaceship? Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 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. Use non-conductive wood or fiberglass ladders when working near power lines. 0000427811 00000 n 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. Leaving or using electrical appliances near water - As electric current is transmitted faster in on wet surfaces, you stand a chance of getting an electric shock. 4. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? -Conductor= permits the free flow of electricity. Examples Of Electrical Hazards. 0000001731 00000 n Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? PDF C. 3.No, because he will not be touching any grounded material when using the tool. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. 0000422244 00000 n Electricity will form a "path" or "loop". 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp As he began to pull away, the crew supervisor yelled to him, asking if the crew could use his water hose to wash out their cement bucket suspended from the crane. stream Look for overhead power lines and buried power line indicators. This is action is also known as creating or completing an electrical circuit. 4,600. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 0000420277 00000 n What is the output of the program in Exercise 17, if first = 26 and second = 8? 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? <>>> . Electrical safety quiz answers are given below. Computers 0000011060 00000 n The ________ keeps the electricity on its intended path through the conductor. Which of the following are caused by contact with electricity? c.Wood ( b.The tool's power cord. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 2. Question 3: A/an ____________ is a unit of measurement for electrical resistance. Protection is lost because it will not trip when the system's load has been exceeded. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. 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. c. Match the color of the tool to the color of the extension cord. 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 Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. 5.Twitch, Electrical shock may result in: A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. OSHA 10 General Industry Test Answer Key WALKING. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ PDF OSHA Safety - Electrical Safety - Red Vector % 3.Body tissue Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Draw a line from the item on the left that corresponds to the match on the right. 2.Skin A 120v. 4 0 obj 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. 1. The workers administered CPR to the victim, but to no avail. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. To avoid injury or death, you must understand and recognize hazards. In which of the following workplace situations are you at risk for coming into contact with live electrical . 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. 3. Use only extension cords that are 3-wire type. b+t6W' te+.W_{8u7Dt@1c. c.Gasoline 21 Examples Of Electrical Hazards - HSEWatch 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. Visually inspect all electrical equipment before use. [, Do not modify cords or use them incorrectly. 0000013716 00000 n He plans to use it over a period of at least six months. If a worker has been retaliated against for using their rights, they Identify the oxidizing and reducing agents. [. 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. Apparently, his hand contracted and he was "locked" to the saw. OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet 5. He may have dropped the extension cord at the site and not heard the connector break. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Best Practices with Power Lines Quiz OSHA 30 - Best A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. If you are touching any grounded material while using a power tool a.Your thumb. 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. 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. c. Inductive objects 0000005716 00000 n 0000421920 00000 n 0000055319 00000 n When it completes a circuit through the body. c. Extend the reach of the power tool. 3. Death is probable. *Effects are for voltages less than about 600 volts. OSHA 30 Construction Final Test Answer Key - Studylib d.Adapter, What is a GFCI? Other protective measures include guarding or insulating the lines. 4. Determine duration, frequency, degree of exposure to hazards and physical stress. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream b. c.40,000 volts b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 0000001116 00000 n What three things must be present for a current to flow through a conductor. 4. 1. 0000002733 00000 n B. (A) Shotgun sticks. 1.Fingernails 0000000016 00000 n Which of the following are conductor of electricity? d. Match the outlet prongs to the extension cord. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 0000001908 00000 n 0000003771 00000 n If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 0000004946 00000 n Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 0000005632 00000 n The victim provided a path to ground and was electrocuted. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. PDF Electrical Hazards - Occupational Safety and Health Administration 0000003603 00000 n 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). The victim was part of a crew that was constructing a concrete wall. PDF Working Safely with Electricity - Occupational Safety and Health The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. 0000022637 00000 n 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). b) By supplying GFCIs, or ground-fault circuit interrupters Additionally, the ground prongs were missing from the two cords. 2.Loose bolts % Additional minimum clearance distance is required for power lines carrying over ________. Burns. 4. 2. Which of the following are insulators of electricity? I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 2.Using an aluminum ladder when the possibility exists for contact with electricity. Frequently inspect electrical systems to insure that the path to ground is continuous. 3. 1 0 obj Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. Before using the equipment, be sure that the ground wire: endobj Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 3.Clear Apply a warning tag to any defective tool and do not use it until the problem has been corrected. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Provides information about the hazards that electrical workers may experience as a part of their jobs. Post warning signs. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 1.Pain Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . 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. B. outdoors. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. Most of the hydrides of Group 1A and Group 2A metals are ionic. 5 feet 3.Something that causes current to flow through the . Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 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. OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet 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 endobj BE SAFE! (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Select the correct answer and then click DONE. a) Ensure overhead power line safety d.50,000 volts. Electrocution. 1. H. B 208v. b.Rod The small electrical current enters his body through his left leg. 2.Grease RZyd Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. Extension cords had poor splices, no grounds, and reversed polarity. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Improper Use of Extension and Flexible Cords. A co-worker disconnected the power cord to the saw, too late to save the victim. 0000010603 00000 n 0000421627 00000 n Supply power for tools or equipment on a long-term basis. endobj Question 2: Which of the following are ways employers must protect their employees on the workplace? ZR)!=w|; @uT C0? c) Establish and enact an assured equipment grounding conductor program (AEGCP) The workers had removed their shirts and were sweating. It is important to note that NFPA 70E is a . 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. Select the correct answer and then click DONE. 3.Tears 0000006866 00000 n Quiz Question 2: Which is acceptable when using powdered tools? A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. gYpV:+ 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: 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. 0000007427 00000 n Select the correct answer and then click on DONE. A) Identify; Castigate; C) Evaluate; D) Modify; 3. In addition to contact with power lines, the top electrical hazards include: Which of the following part of you body can burn if you come in contact with electricity? 3.Loose nuts _.9u'2G_0 Ue]e"x5|Y (3,2,1), (5,4,3). b.811 c.Three-prong plug Is not painted over 0000005050 00000 n
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