(3,2,1), (5,4,3). He may have dropped the extension cord at the site and not heard the connector break. 0000003715 00000 n
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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. 1.Extension cords Equipment used in manner prescribed. These short objective type questions with answers are very important for competitive exams as well as Board exams. De-energize and ground lines when working near them. Underground electrical hazards are: A. 2. Electric current cannot exist without an unbroken path to and from the conductor. The victim was totally deaf in one ear and suffered diminished hearing in the other. 3. Quiz: Electrical Hazards. -Grounding= a conductive connection to the earth which acts as a protective measure. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. 2.Grease <>>>
2.Complete and more. Which of these can be used as insulating live-line tools for electrical protection. How might this event affect the ability of animals to obtain energy to live? b+t6W' te+.W_{8u7Dt@1c. 2.Yes, because he is using a portable power tool. 4.Cardiac arrest Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Be sure equipment that has been shop fabricated or altered is in compliance. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. d.The body of the power tool. d.Adapter, What is a GFCI? 182 0 obj
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d) All of the above. 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. Post warning signs. 2.Loss of muscle control OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and _5JKy. When an electric shock occurs, your muscles may: d/E
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(E) a, b, and c. 2. -If current passes through the body near the heart or brain. 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. 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. 0000013999 00000 n
c.Touching the motor 4,600. 0000001646 00000 n
2.Using an aluminum ladder when the possibility exists for contact with electricity. Use non-conductive wood or fiberglass ladders when working near power lines. Select the correct answer and then click DONE. 3. (b) The same reaction can also be classified as a redox reaction. 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. A) 120v . Burns. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Electrocution. 2.Something to transport the electrical current -- A conductor. 0000002150 00000 n
c. Inductive objects 3.Tears 1.Is faulty Osha 10 test answers 2021 quizlet - Math Questions 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Fire Does the fall qualify as an electrical accident? Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. In which of the following workplace situations are you at risk for coming into contact with live electrical . In addition to contact with power lines, the top electrical hazards include: Get All Answers to OSHA 30 Construction Final Exam. 0000014257 00000 n
You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 0000004444 00000 n
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. Frequently inspect electrical systems to insure that the path to ground is continuous. 2 0 obj
A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. 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. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? he most common shock-related injuries are: 1. Before using the equipment, be sure that the ground wire: 1.Flammable liquids b. 21 Examples Of Electrical Hazards - HSEWatch True. Easy to identify Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 2.Using extension cords or electrical tools properly. Select the correct answer and then click DONE. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 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. hbb``b``3N0
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Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy a.Extension cords 4.On equipment that must run unattended for long periods of time, Manufacturing equipment may be grounded using a wire connected to a rod driven into the earth. 3.Draped over equipment. Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow The small electrical current enters his body through his left leg. 0000021516 00000 n
In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? 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). Does the fall qualify as an electrical accident? Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? Best Practices with Power Lines Quiz OSHA 30 - Best c) Age 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. When current travels through your body - Definition of electric shock. Electricity becomes hazardous when it takes an unintended path to complete the ________. 4.The amount of current, An electrical burn may affect: As she is adding in the chemicals, her hand touches the motor and it becomes energized. 2.Loose screws OSHA: Electrical Hazards Flashcards | Quizlet s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW`
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Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 0000006866 00000 n
SCENARIO: You encounter a co-worker on a residential remodeling job. c.The outlet. (D) None of the above. 0000003640 00000 n
lex has set up a mobile engine testing station in the maintenance area. 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. 0000003603 00000 n
1. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. The modification of the plug was not an intended use or prescribed by the manufacturer. What is the output of the program in Exercise 17, if first = 26 and second = 8? Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 1.The humidity of the environment The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. a.Standing in water -Current= the movement of electrical charge. Potential hazards of electricity are preventable if you do which of the following listed below? 0000013716 00000 n
When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. Use only extension cords that are 3-wire type. A. indoors. 0000002479 00000 n
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 hazards are life threatening incidents that could happen due to electricity. PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. 0000414648 00000 n
The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet A. wrap tape around the damaged spot to prevent electrical shocks. Overview. b.The tool's power cord. 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. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Co-workers provided CPR, but were unable to revive the victim. stream
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. 2. Contact utilities for buried power line locations. 0000012360 00000 n
The following are electrical hazards: Shock. 1452 0 obj
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OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Unless you know otherwise, assume that overhead lines are energized. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. 0000001672 00000 n
The ________ keeps the electricity on its intended path through the conductor. a. Gaseous matter Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) c. No, because the electricity is needed on a long-term basis. 0000005406 00000 n
4.Circuit breakers, When inspecting power tools, look for: Select the correct answer and then click DONE. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. Select the correct answer and then click DONE. 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. a) Ensure overhead power line safety OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Should he use an extension cord to power it? OSHA 30 Construction Final Test Answer Key - Studylib 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. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. 0000057373 00000 n
1.Is firmly connected b) By supplying GFCIs, or ground-fault circuit interrupters Electrical Safety Quiz - OSHA.net Question 3: A/an ____________ is a unit of measurement for electrical resistance. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 1.Pain Yes, because he will be using electricity near water. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. Additionally, the ground prong was missing and there was no GFCI protection. Arc Flash. 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. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? gYpV:+ c. Extend the reach of the power tool. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. Frames of non-electrically driven elevator cars to which electric conductors are attached. Take any defective equipment out of service. Carly needs to use an extension cord with her corded nail gun. How fast would the ball be moving at the moment of release? How will she choose the correct cord? Extension cords are used to: b.Rod 1.Missing 0000002122 00000 n
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which of the following are electrical hazards osha quizlet A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. 0000007464 00000 n
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. c.Gasoline OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet Electrical Hazards - SSOE Group Muscular contraction and nerve damage occur; death likely. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) endobj
c.falls. specifically addresses electrical protective devices. Working with electricity can be dangerous. 3 0 obj
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1. HJ=S~68438IR/:VR C Y<7H*$F>ya)N1bTa+'OdzydV9QS]b{}(=q?pH,mt8{Ag ]wp?2N$AfnhBL!jV=6ho)5jA8H`Bkh{T[v\G%b|4| Eo*cF ]TBGjB[r6)WzCkQ;Bx(]*JG;&o0TV.P=s4Gs(&e~}j76,-6at$]r**-I!o66PqK.z
"*D As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 0000002385 00000 n
1.Fingernails 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. The most dangerous place to use electrical equipment is? (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. a.Electricity 4. The contact lasts for 5 seconds before someone is able to shut off the power. Death. 3. h|UnH}+i-. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Besides personal bodily injury, what other electrical hazards can be found in the workplace? electrical safety part 1 Flashcards | Quizlet Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Additionally, the ground prongs were missing from the two cords. Electrical Safety Multiple Choice Questions and Answers for competitive exams. If a worker has been retaliated against for using their rights, they 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. *Effects are for voltages less than about 600 volts. ZR)!=w|; @uT C0? Bob is asked to repair some overhead wiring, requiring the use a ladder. 0000006893 00000 n
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cGPzNY*oS(m%q{Agp He plans to use it over a period of at least six months. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Which of the following are caused by contact with electricity? Ground all exposed metal parts of equipment. 2.Is working properly A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Question 1: Which of the following is a danger of electricity? This is action is also known as creating or completing an electrical circuit. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 3. Check your employee's electrical safety knowledge through an electrical safety quiz. PDF OSHA Safety - Electrical Safety - Red Vector Quiz Question 3: Power cords can be damaged by which of the following? Work performed on an electrical system within reaching distance of energized components is_____work. %PDF-1.4
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3.Loose nuts HWMo#7v#h>6,Z4- 0000001604 00000 n
Question 4: Which of the following is a type of burn caused by electrical hazards? OSHA 10 - Electrical Flashcards | Quizlet B. 2. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. Protection is lost because it will not trip when the system's load has been exceeded. 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. 0000004946 00000 n
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Vietnamese Dong Revalue 2022, The Silent Children Project, Taxslayer Green Dot Card Stimulus Check, Elca Pastor Directory, Articles W