which of the following are electrical hazards osha quizlet

d) All of the above. If a worker has been retaliated against for using their rights, they 0000004273 00000 n Using cords or tools with worn insulation or exposed wires. Question 3: A/an ____________ is a unit of measurement for electrical resistance. Electric current cannot exist without an unbroken path to and from the conductor. View Answer Answer: 600v 4 . Used across walkways. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. 2.Yes, because he is using a portable power tool. -Conductor= permits the free flow of electricity. 0000108920 00000 n [Power Tools]. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? High humidity a.Ground Fault Circuit Insulator 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. endobj Use only equipment that is approved to meet OSHA standards. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. A) 120v . 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp Adapter For 3-Prong Cord Not Grounded To Outlet: On May 27, 1986, two workers were using a 110-volt auger to install tie-down rods for a manufactured home. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 4. The victim provided a path to ground and was electrocuted. :$#k9BPnZ{Qqe/reKy,'ZlB# a) Door or window edges Test your knowledge with our electrical safety quiz below. Does the fall qualify as an electrical accident? 0000005050 00000 n While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 0000011060 00000 n 3.No, because he will not be touching any grounded material when using the tool. 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. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Use only extension cords that are 3-wire type. c.Guaranteed Fault Circuit Interrupter hazard or that their employer is not following OSHA's rules. Ground all power supply systems, electrical circuits, and electrical equipment. A measure of the energy of motion of the particles in a substance is its _____. The workers had removed their shirts and were sweating. 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). Which group would be more accurate when used in an accelerating spaceship? Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 1.Extension cords Bob is asked to repair some overhead wiring, requiring the use a ladder. 0000002557 00000 n %PDF-1.4 % 1.Is firmly connected 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 (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 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. What factors determine the severity of Dirk's injuries? De-energize and ground lines when working near them. 0000022637 00000 n This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Select the correct answer and then click DONE. d.A power tool, A GFCI is designed to: Electrical hazards are life threatening incidents that could happen due to electricity. Explosion Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. Electrical current travels through insulated ________. 0000004444 00000 n Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Use only extension cords that are marked with a designation code for hard or extra-hard usage. Use non-conductive wood or fiberglass ladders when working near power lines. 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. 1 0 obj SCENARIO: You encounter a co-worker on a residential remodeling job. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. RZyd 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. C 277v. % Get All Answers to OSHA 30 Construction Final Exam. Water The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. Is the west coast of Africa a plate boundary? When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. 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. 0000028595 00000 n 1452 25 OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Provides information about the hazards that electrical workers may experience as a part of their jobs. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. To avoid injury or death, you must understand and recognize hazards. 2. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). a. Gaseous matter 3 0 obj b.10 feet D. near other electrical equipment. c) Age 0000002386 00000 n Quiz Question 3: Power cords can be damaged by which of the following? 2. 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. Using a dry wood ladder when the possibility exists for contact with electricity. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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. 1.Pain 0000001646 00000 n 0000004946 00000 n Remove cords from receptacles by pulling on the plugs, not the cords. 4.The amount of current, An electrical burn may affect: These short objective type questions with answers are very important for competitive exams as well as Board exams. c.falls. The ________ keeps the electricity on its intended path through the conductor. Select the correct answer and then click DONE. 3. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. Death is probable. Hand-operated metal shifting ropes or cables of electric elevators. OSHA 29 CFR 1910, Subpart P . Cardiac arrest or death - A result of electrical shock. -Severe skin burns. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Switch [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. b) Staples 0000000016 00000 n Ajay needs to use a dewatering pump to drain standing water on a construction site. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. h|UnH}+i-. 1.Is faulty a.Conductive objects 0000004686 00000 n 0000013999 00000 n The contact lasts for 5 seconds before someone is able to shut off the power. b. Deductive objects b+t6W' te+.W_{8u7Dt@1c. 1.Flammable liquids 0000419562 00000 n The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. -If current passes through the body near the heart or brain. and more. Is not painted over The floor is covered in water and she is barefoot. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 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. 1.Damaged cover or insulation d.Constructive objects, Select all answers that apply to the following statement and then click DONE. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). When inspecting extension cords, look for: 0000013716 00000 n Of the following choices, which are frequent electrical hazards Effective means of controlling power line hazards include: Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. d. No, because an extension cord would not provide enough power. Carly needs to use an extension cord with her corded nail gun. lb MKS How will she choose the correct cord? 4,600. Be sure equipment that has been shop fabricated or altered is in compliance. 3.Clear Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Select the correct answer and then click DONE. Continually audit cords on-site. 1. If a defective power tool gives you an electric shock, how might your muscles react? Using multi-receptacle boxes designed to be. Select the correct answer and then click DONE. 0000017336 00000 n 0000017163 00000 n d. 411, You are working with a 10-foot section of a conductive pipe near power lines. Draw a line from the item on the left that corresponds to the match on the right. Which of the following can be the result of electric shock? The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. b.811 Intentionally creating a low-resistance path that connects to the earth. Select the correct answer and then click DONE. 0000000816 00000 n Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. ( 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. 0000010155 00000 n trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream 3.Tears 3 0 obj D. Have an ANSI sticker and an expiration date. Yes, because he will be using electricity near water. The factors that determine the severity of an electrical injury include: The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 0000421920 00000 n If the power supply to the electrical equipment at your site is not grounded or the path has been broken, fault current may travel through a worker's body, causing electrical burns or death. Extension cords are used to: 0000004965 00000 n a.Yes, as it is a mobile engine testing station. 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 Visually inspect all electrical equipment before use. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 0000004884 00000 n When it completes a circuit through the body. A. indoors. Extension cords may become a trip hazard when: 0000002385 00000 n 2. 1.Cuts H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ Best Practices with Power Lines 1. b.burns. <> The modification of the plug was not an intended use or prescribed by the manufacturer. c.40,000 volts Examples Of Electrical Hazards. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. endobj Latoya is using a mixing motor to mix pool chemicals in a plastic drum.

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