The accident site was wet; also, humidity was high and the victim was sweating. Working with electricity can be dangerous. Select the correct answer and then click DONE. 0000421627 00000 n
c.Guaranteed Fault Circuit Interrupter _5JKy. 2.Grease Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 1.Fingernails Is split Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Is the west coast of Africa a plate boundary? The workers administered CPR to the victim, but to no avail. lb
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Potential hazards of electricity are preventable if you do which of the following listed below? Take any defective equipment out of service. Stay at least 10 feet away from overhead power lines. (A) Shotgun sticks. Use only extension cords that are 3-wire type. Using equipment outdoors that is labeled for use only in dry, indoor locations. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 30 days B. a.20,000 volts What do tripped circuit breakers and blown fuses indicate? endobj
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Electrocution. What is the primary purpose of properly grounding equipment? B 208v. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. b) By supplying GFCIs, or ground-fault circuit interrupters The factors that determine the severity of an electrical injury include: trailer
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1. -Grounding= a conductive connection to the earth which acts as a protective measure. What three things must be present for a current to flow through a conductor. 1 0 obj
d.Alert workers of any water in the area, GFCI is an acronym for: Arc Flash. He yelled for his co-workers to disconnect the power, which they did. Effective means of controlling power line hazards include: !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr
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Question 2: Which of the following is NOT a category of electrical burns? Select the choices that accurately define the common electrical term. [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. OSHA Safety and Health Topics Page. The source of the shocks -- the saw -- was not replaced. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 0000108653 00000 n
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. 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. 3.Clear c.40,000 volts 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Use only extension cords that are marked with a designation code for hard or extra-hard usage. Explosion How will she choose the correct cord? 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. True. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. Unless you know otherwise, assume that overhead lines are energized. 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. 3. RZyd Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Switch a.related to muscle damage. 2.Grounding 3.The length of time the body is in contact with electricity The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). A) Identify; Castigate; C) Evaluate; D) Modify; 3. Select the correct answer and then click on DONE. -Falls. In which of the following workplace situations are you at risk for coming into contact with live electrical . 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: 0000089142 00000 n
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. a.Yes, as it is a mobile engine testing station. 1 0 obj
Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. 0000422244 00000 n
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One hand drill was not grounded, and the other had no safety plate. *Effects are for voltages less than about 600 volts. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 1.Damaged cover or insulation d/E
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/\"BQ>Rkl6xZWtAgfs Examples of Equipment That Can Contact Power Lines. 4. The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. It is important to note that NFPA 70E is a . 1. 4.Cardiac arrest d. Power outlets, ________ are anything that can transmit electrical current. 0000013716 00000 n
3.Draped over equipment. . Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. b. c.Three-prong plug 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? One handle has a deadman's switch. s\A0W+ 0000004274 00000 n
The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Question 1: Which of the following is a danger of electricity? Select the correct answer and then click DONE. 3 0 obj
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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. a) Ensure overhead power line safety 0000003715 00000 n
He plans to use it over a period of at least six months. Frequently inspect electrical systems to insure that the path to ground is continuous. 1.The humidity of the environment Select the correct answer and then click DONE. D. near other electrical equipment. You should? The modification of the plug was not an intended use or prescribed by the manufacturer. 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. . 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. c.Power lines [Power Tools]. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 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. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. 1452 25
Question 2: Which of the following are ways employers must protect their employees on the workplace? a.Extension cords 0000068035 00000 n
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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. 0000007694 00000 n
The auger has a one-quarter horsepower motor encased in a metal housing with two handles. A measure of the energy of motion of the particles in a substance is its _____. using a 30-amp breaker in a system with 15- or 20-amp receptacles. Wearing a baseball cap b. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 0000006893 00000 n
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What is the most common, non-fatal, electrical shock-related injury? OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. 0000004793 00000 n
Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>
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. Visually inspect all electrical equipment before use. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) D. Have an ANSI sticker and an expiration date. 0000005716 00000 n
d.Adapter, What is a GFCI? 2.Placed along a wall. 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. trailer
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4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: A) 120v . 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. Of the following choices, which are frequent electrical hazards 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. d. Match the outlet prongs to the extension cord. endobj
a.Shut off power within a fraction of a second Which of these can be used as insulating live-line tools for electrical protection. Select the correct answer and then click DONE. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Computers qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? c. Inductive objects Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 0000420277 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? 0000002385 00000 n
b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. vpfuI)],s 0000003254 00000 n
a.Two-prong plug She has an older drill with a steel housing and a 3-prong plug. 4. d.Water, Other electrical hazards in the workplace include: 0000414648 00000 n
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He may have dropped the extension cord at the site and not heard the connector break. 0000013999 00000 n
b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Using tools and equipment that can contact power lines increases the risk. Used across walkways. When inspecting extension cords, look for: Provide a safe path to earth ground for electricity. 2. The contact lasts for 5 seconds before someone is able to shut off the power. 2.Yes, because he is using a portable power tool. 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.
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