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. b.The tool's power cord. Using tools and equipment that can contact power lines increases the risk. xYmo -ER/&@[D,_! The floor is covered in water and she is barefoot. Determine duration, frequency, degree of exposure to hazards and physical stress. 0000010603 00000 n b.burns. 0000056642 00000 n The auger then fell across the other worker, the 24-year-old victim. Question 1: Which of these is a type of Ground Fault Circuit Adapter? 128 0 obj <> endobj xref 128 26 0000000016 00000 n Using a dry wood ladder when the possibility exists for contact with electricity. When current travels through your body - Definition of electric shock. The source of the shocks -- the saw -- was not replaced. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 0000004884 00000 n Take any defective equipment out of service. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. How might this event affect the ability of animals to obtain energy to live? Damaged Extension Cord Leaves Arc Welder Ungrounded: A 29-year-old welder attempted to connect a portable arc welder to an electrical outlet using an extension cord. As she is adding in the chemicals, her hand touches the motor and it becomes energized. 2.Using extension cords or electrical tools properly. using a 30-amp breaker in a system with 15- or 20-amp receptacles. This is action is also known as creating or completing an electrical circuit. <>>> A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). De-energizing 3.Loose nuts 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. 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. Improper Use of Extension and Flexible Cords. Electrical safety quiz answers are given below. 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. 3. [. Lx*jWP# /c2)|]NXqAx>=~'[ c.Touching the motor trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Select the correct answer and then click DONE. d.Adapter, What is a GFCI? 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. _5JKy. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. [, Do not modify cords or use them incorrectly. 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. 0000007741 00000 n What factors determine the severity of Dirk's injuries? One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. He may have dropped the extension cord at the site and not heard the connector break. % When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. [29 CFR 1926.416(a)(1)]. d.A power tool, A GFCI is designed to: 3. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s 0000001646 00000 n You should? -Rubber. <<7628BB2D46738F42B2FC6393656F4718>]>> hazard or that their employer is not following OSHA's rules. 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 Question 2: Which of the following are ways . Which of the following factors determine how severe an electrical injury might be? d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. c. Match the color of the tool to the color of the extension cord. 0000013716 00000 n 3.No, because he will not be touching any grounded material when using the tool. b) By supplying GFCIs, or ground-fault circuit interrupters Remove cords from receptacles by pulling on the plugs, not the cords. Ground all power supply systems, electrical circuits, and electrical equipment. 0000004946 00000 n 3. d.Alert workers of any water in the area, GFCI is an acronym for: Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 0000414648 00000 n Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. a.A small current OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. b.30,000 volts -Wood. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Select the correct answer and then click DONE. 1.Pain Using multi-receptacle boxes designed to be. 1.Clench 0000001116 00000 n Apply a warning tag to any defective tool and do not use it until the problem has been corrected. a. OSHA 29 CFR 1910, Subpart P . 2 0 obj 0000006866 00000 n 1.A source of electrical current to flow. Test your knowledge with our electrical safety quiz below. 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. Select the correct answer and then click DONE. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. 0000011060 00000 n d. Match the outlet prongs to the extension cord. 2.Complete 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. 0000005042 00000 n Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. 2.Grease Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. Supply power for tools or equipment on a long-term basis. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. stream 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. b. Stay at least 10 feet away from overhead power lines. c.Wood As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. To be safe, you must think about your job and plan for hazards. c.Three-prong plug a.Your thumb. 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. %PDF-1.4 % _.9u'2G_0 Ue]e"x5|Y Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. 2. What is the output of the program in Exercise 17, if first = 26 and second = 8? Use non-conductive wood or fiberglass ladders when working near power lines. 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. 0000068035 00000 n She finds several available in the shop. endobj 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 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. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. a.Supply power for tools or equipment on a temporary or short-term basis. 0000002876 00000 n b.Yes, as it would be too expensive to install more permanent wiring and receptacles. endobj vpfuI)],s c. Inductive objects As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 0000004444 00000 n b) Staples c.15 feet Electrical hazards are life threatening incidents that could happen due to electricity. (E) a, b, and c. 2. 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. Select the choices that accurately define the common electrical term. Working with electricity can be dangerous. gYpV:+ Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. Bob is asked to repair some overhead wiring, requiring the use a ladder. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. 3.Clear When an electric shock occurs, your muscles may: What was Latoya's first mistake? a) Ensure overhead power line safety -Glass. 0000002195 00000 n 2.Skin b.Electrical tools He plans to use it over a period of at least six months. Handling Damaged Extension Cord When Energized: A 19-year-old construction laborer was working with his foreman and another laborer to construct a waterfront bulkhead for a lakeside residence. No GFCI's were used. lex has set up a mobile engine testing station in the maintenance area. Match the length from job to outlet. -Severe skin burns. 2.Loss of muscle control Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. 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. Select the correct answer and then click DONE. 0000013999 00000 n If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 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? 3 0 obj 4. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. q>NmnLNmb$"Iyx1bD9.~Ll. 0000004274 00000 n How will she choose the correct cord? Using equipment outdoors that is labeled for use only in dry, indoor locations. The workers administered CPR to the victim, but to no avail. Isolating, Power lines may be located underground. One hand drill was not grounded, and the other had no safety plate. Select the correct answer and then click DONE. 0000006152 00000 n OSHA will keep all identities confidential. 0000008392 00000 n 0000422244 00000 n Carly needs to use an extension cord with her corded nail gun. a.Electricity 0000007464 00000 n Electrical Safety Multiple Choice Questions and Answers for competitive exams. 0000014257 00000 n c. No, because the electricity is needed on a long-term basis.
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