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A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. 3 0 obj . b. 0 The plug of the compressor and an extension cord had been modified to fit a wall outlet for a common household clothes dryer (220 V). When inspecting extension cords, look for: As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Apparently, his hand contracted and he was "locked" to the saw. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 0000010155 00000 n 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. Question 2: Which of the following are ways employers must protect their employees on the workplace? <> 3.Loss of eyesight Unless you know otherwise, assume that overhead lines are energized. 5.Twitch, Electrical shock may result in: -Current= the movement of electrical charge. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 2.Complete A. wrap tape around the damaged spot to prevent electrical shocks. 0000004444 00000 n c.A measurement of electricity d.Adapter, What is a GFCI? Electrical hazards are life threatening incidents that could happen due to electricity. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Visually inspect all electrical equipment before use. 3.Cramp Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Select the correct answer and then click DONE. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 3.The length of time the body is in contact with electricity Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. a.Two-prong plug The ________ keeps the electricity on its intended path through the conductor. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 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 trailer Electricity will form a "path" or "loop". Explosion c.Wood Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? The following are electrical hazards: Shock. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 3.No, because he will not be touching any grounded material when using the tool. [, Use all equipment according to the manufacturer's instructions. d. 20 feet. 1. 1.Missing or broken path to ground. 0000004921 00000 n %PDF-1.4 % Outlets Only after a rescue squad arrived about 4 minutes later did anyone realize that the crane was in contact with a power line -- all those present had assumed that the victim had suffered a heart attack. Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 0000007427 00000 n Which of the following are caused by contact with electricity? When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 3.Loose nuts Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. The victim was totally deaf in one ear and suffered diminished hearing in the other. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. B 208v. 2. 0000427811 00000 n c. Inductive objects c.40,000 volts 4 0 obj a.311 0000005632 00000 n The workers administered CPR to the victim, but to no avail. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. Which of the following can be the result of electric shock? qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 0000000816 00000 n Which of the following are electrical hazards? - Brainly.com HWMo#7v#h>6,Z4- a. C 277v. 0000007464 00000 n Cardiac arrest or death - A result of electrical shock. Does the fall qualify as an electrical accident? 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. If a defective power tool gives you an electric shock, how might your muscles react? 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. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). (See NFPA 70E-2021 Article 130 and OSHA subpart S part . The floor is covered in water and she is barefoot. 0000420564 00000 n Get All Answers to OSHA 30 Construction Final Exam. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 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? Of the following choices, which are frequent electrical hazards After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 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.ack of ground fault protection. Water OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and 0000028595 00000 n PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. Ground all exposed metal parts of equipment. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. 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. Electrical Contractors Industry. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? A) 120v . 2.Using extension cords or electrical tools properly. %%EOF _.9u'2G_0 Ue]e"x5|Y OSHA will keep all identities confidential. 2.The person's physical condition The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. The modification of the plug was not an intended use or prescribed by the manufacturer. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. -Conductor= permits the free flow of electricity. %PDF-1.4 % 0000001495 00000 n SCENARIO: You encounter a co-worker on a residential remodeling job. 0000013999 00000 n Electrical Safety Quiz-Test Your Electrical Safety Knowledge Post warning signs. 0000003771 00000 n and more. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Lx*jWP# /c2)|]NXqAx>=~'[ 0000002557 00000 n Electricity becomes hazardous when it takes an unintended path to complete the ________. Osha 10 test answers 2021 quizlet - Math Questions Intentionally creating a low-resistance path that connects to the earth. 4. What was Latoya's first mistake? s\A0W+ Electrical Safety Quiz - OSHA.net 3. Match the length from job to outlet. 3.Tears Question 4: Which of the following is a type of burn caused by electrical hazards? 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 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. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: Select the correct answer and then click DONE. View Answer Answer: 600v 4 . Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? OSHA: Common Electrical Hazards Flashcards | Quizlet Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. 1452 0 obj <> endobj Remove cords from receptacles by pulling on the plugs, not the cords. Safe operation of hand and portable powered tools and other hand-held equipment. 0000002479 00000 n Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ What is the output of the program in Exercise 17, if first = 26 and second = 8? -Falls. Continually audit cords on-site. 2.Placed along a wall. Should Ajay use a GFCI?