which of the following are electrical hazards osha quizletnesn bruins pregame show hosts

3. 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. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Additionally, the ground prongs were missing from the two cords. 0000414648 00000 n 0000108653 00000 n Get All Answers to OSHA 30 Construction Final Exam. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. % OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 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). vpfuI)],s Electrocution. s\A0W+ CCOHS: Electrical Safety - Basic Information He plans to use it over a period of at least six months. endobj Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. 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. Select the correct answer and then click DONE. 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. As she is adding in the chemicals, her hand touches the motor and it becomes energized. h|UnH}+i-. In which of the following workplace situations are you at risk for coming into contact with live electrical . The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. startxref [Power Tools]. 2.Skin %PDF-1.4 % 2. b.Not wearing insulating shoes or boots when she was handling electrical equipment All of the following are essential considerations for the safe use of cords and wiring EXCEPT: Which one of these methods is not acceptable for putting out an electrical fire? specifically addresses electrical protective devices. Which of the following are electrical hazards? - Brainly.com Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy 4.Running through doorways. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Which of the following are insulators of electricity? 2.Is working properly 1. Select the correct answer and then click DONE. Extension cords are used to: Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. SCENARIO: You encounter a co-worker on a residential remodeling job. Select the correct answer and then click DONE. Contact utilities for buried power line locations. endobj he most common shock-related injuries are: 0000022637 00000 n Electricity becomes hazardous when it takes an unintended path to complete the ________. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 3.Loose nuts 0000003900 00000 n 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: 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 1.Is faulty Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. Question 2: Which of the following are ways . 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.Loose bolts 3 0 obj d. Power outlets, ________ are anything that can transmit electrical current. a.Conductive objects and more. using a 30-amp breaker in a system with 15- or 20-amp receptacles. 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. 0000004686 00000 n You should? d. 20 feet. Select the correct answer and then click DONE. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. b+t6W' te+.W_{8u7Dt@1c. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Arc Flash. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. De-energizing 30 days B. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Post warning signs. 4 0 obj 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? a.311 Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. 1. 3.Tears 2.Something to transport the electrical current -- A conductor. d.Metal, Over half of all deaths caused by electricity result from contact with ________. 1.The humidity of the environment 1.Damaged cover or insulation Question 4: Which of the following is a type of burn caused by electrical hazards? The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. c) Age Using cords or tools with worn insulation or exposed wires. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 0000003603 00000 n a.Your thumb. b) By supplying GFCIs, or ground-fault circuit interrupters 0000014257 00000 n 1. % [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. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s <> The following references aid in recognizing hazards associated with electrical work. 0000419562 00000 n Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? 0000421627 00000 n a.Yes, because the electrical shock caused the fall. He yelled for his co-workers to disconnect the power, which they did. b.burns. Improper Use of Extension and Flexible Cords. 1452 0 obj <> endobj 1. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Electrical Safety Quiz-Test Your Electrical Safety Knowledge A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. 2. Select the correct answer and then click DONE. NFPA 70E: Standard for Electrical Safety in the Workplace Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 1.Missing 0000001604 00000 n 4.The amount of current, An electrical burn may affect: Introduction To Osha Quiz Answers1) Which of the following activities Visually inspect all electrical equipment before use. 1.Flammable liquids Computers 4. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. Question 2: Which of the following are ways employers must protect their employees on the workplace? ( OSHA 29 CFR 1910.147 . Most of the hydrides of Group 1A and Group 2A metals are ionic. 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. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 3.Cramp lb MKS 0000001495 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. [Flexible Cords and Power Tools]. Osha 10 test answers 2021 quizlet - Math Questions 0000012360 00000 n 0000018681 00000 n 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 0000001814 00000 n When an electric shock occurs, your muscles may: Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. c.Touching the motor Which of the following factors determine how severe an electrical injury might be? Use only equipment that is approved to meet OSHA standards. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. Select the choices that accurately define the common electrical term. 0000007741 00000 n Question 1: Which of these is a type of Ground Fault Circuit Adapter? The contact lasts for 5 seconds before someone is able to shut off the power. -Voltage= a measure of electrical force. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? BE SAFE! 0000427811 00000 n The small electrical current enters his body through his left leg. 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. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 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. 3. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. -Glass. Supply power for tools or equipment on a long-term basis. 0000108920 00000 n 0000421920 00000 n b.10 feet 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! PDF Electrical Hazards - Occupational Safety and Health Administration Use only cords, connection devices, and fittings that are equipped with strain relief. gYpV:+ trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Equipment used in manner prescribed. Both could have prevented the accident from occuring. *Effects are for voltages less than about 600 volts. View Answer Answer: 600v 4 . 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. c.Gasoline When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Examples Of Electrical Hazards. Apparently, his hand contracted and he was "locked" to the saw. HWMo#7v#h>6,Z4- Electrical Safety Assessment Quiz Answers | ISHN 0000422244 00000 n 0000001646 00000 n Besides personal bodily injury, what other electrical hazards can be found in the workplace? 1.Pain 2.The person's physical condition 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 0000005050 00000 n 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. lex has set up a mobile engine testing station in the maintenance area. -Falls. The most dangerous place to use electrical equipment is? 3. The victim was part of a crew that was constructing a concrete wall. What type of burns are the result of current flowing through and exiting the body? Which of the following part of you body can burn if you come in contact with electricity? a.20,000 volts b. Deductive objects 0000021516 00000 n Additional minimum clearance distance is required for power lines carrying over ________. Best Practices with Power Lines Quiz OSHA 30 - Best Used across walkways. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. What factors determine the severity of Dirk's injuries? Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Electricity will form a "path" or "loop". Electrical Contractors Industry. A) Identify; Castigate; C) Evaluate; D) Modify; 3. 0000009628 00000 n =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Ground all power supply systems, electrical circuits, and electrical equipment. 4.Must be replaced, Always use a GFCI: B. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. 0000002403 00000 n 0000005406 00000 n [, Do not modify cords or use them incorrectly. 0000002122 00000 n 0000011060 00000 n stream 0000000816 00000 n OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and 3.The length of time the body is in contact with electricity A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. 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. 2.Loose screws 1.Extension cords d.The body of the power tool. 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. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? Intentionally creating a low-resistance path that connects to the earth. 0000002557 00000 n What was Latoya's first mistake? What is the most common, non-fatal, electrical shock-related injury? Determine duration, frequency, degree of exposure to hazards and physical stress. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 1.A source of electrical current to flow. b.811 Quiz Question 2: Which is acceptable when using powdered tools? c.Three-prong plug 1452 25 which of the following are electrical hazards osha quizlet 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. 4. 1.When you are using electricity near water What are the 4 main type of hazards? [Ultimate Guide!] D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Electrical Safety Multiple Choice Questions and Answers for competitive exams. 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. c. No, because the electricity is needed on a long-term basis. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. a.Electricity How fast would the ball be moving at the moment of release? OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. -Current= the movement of electrical charge. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present:

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