which of the following are electrical hazards osha quizlet

1.Pain 0000007464 00000 n She has an older drill with a steel housing and a 3-prong plug. 1 0 obj Best practices with power lines include: 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. Protection is lost because it will not trip when the system's load has been exceeded. Lx*jWP# /c2)|]NXqAx>=~'[ a.311 Death. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s _5JKy. How will she choose the correct cord? trailer d. 20 feet. D. Have an ANSI sticker and an expiration date. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. . 3. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . What is the output of the program in Exercise 17, if first = 26 and second = 8? A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. 1. 2.The person's physical condition 0000422244 00000 n a.Conductive objects b.Yes, because Bob was on . Contact utilities for buried power line locations. xref 3.The length of time the body is in contact with electricity Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB (E) a, b, and c. 2. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. The ________ keeps the electricity on its intended path through the conductor. This standard also includes safe work practices for employees performing other work activities that can expose them to electrical hazards as well as safe work practices for the following: (1) Installation of conductors and equipment that connect to the supply of electricity (2) Installations used by the electric utility, such as office . Quiz Question 2: Which is acceptable when using powdered tools? 0000108920 00000 n Explosion [29 CFR 1926.416(a)(1)]. 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. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. gYpV:+ 0000420564 00000 n Underground electrical hazards are: A. 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). 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 3.Loose nuts Safe operation of hand and portable powered tools and other hand-held equipment. Muscular contraction and nerve damage occur; death likely. q>NmnLNmb$"Iyx1bD9.~Ll. An OSHA inspection revealed that the tool's original power cord had been replaced with a flat cord, which was not designated for hard service, and that strain relief was not provided at the point where the cord entered the tool. Question 1: Employers must ensure that every electric utilization system and all utilization equipment installed, majorly modified, or replaced after March 15, 1972, complies with the standards for electricity set by the National Fire Protection Association, which have been adopted by OSHA. -Damage to internal organs. c.The outlet. Supply power for tools or equipment on a long-term basis. 3. Frequently inspect electrical systems to insure that the path to ground is continuous. Should he use an extension cord to power it? Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? c.Wood d.A power tool, A GFCI is designed to: The following are electrical hazards: Shock. Co-workers provided CPR, but were unable to revive the victim. Question 1: Which of these is a type of Ground Fault Circuit Adapter? You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 0000004965 00000 n RZyd Yes, because he will be using electricity near water. Get All Answers to OSHA 30 Construction Final Exam. In which of the following workplace situations are you at risk for coming into contact with live electrical . The source of the shocks -- the saw -- was not replaced. 0000012360 00000 n Using a dry wood ladder when the possibility exists for contact with electricity. b+t6W' te+.W_{8u7Dt@1c. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. 2. Select the correct answer and then click on DONE. 0000003715 00000 n Computers d.The body of the power tool. 0000002733 00000 n d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 4. 0000001646 00000 n d) All of the above. 0000004884 00000 n Outlets Visually inspect all electrical equipment before use. (B) Switch sticks. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . 0000003900 00000 n <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. H. :$#k9BPnZ{Qqe/reKy,'ZlB# 0000068035 00000 n [. b.811 Determine duration, frequency, degree of exposure to hazards and physical stress. Cardiac arrest or death - A result of electrical shock. 0000002876 00000 n 2. c) Age 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. Improper Use of Extension and Flexible Cords. Of the following choices, which are frequent electrical hazards Question 1: Which of the following is a danger of electricity? Then answer the questions below. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Electrocution. Hand-operated metal shifting ropes or cables of electric elevators. 4. Lockout/tagout procedures. 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. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 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. Be sure equipment that has been shop fabricated or altered is in compliance. The NEC C. Suggestions b.30,000 volts The small electrical current enters his body through his left leg. Looking for NFPA 70E Certification? Post warning signs. 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. d.Metal, Over half of all deaths caused by electricity result from contact with ________. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. a.Ground Fault Circuit Insulator Most of the hydrides of Group 1A and Group 2A metals are ionic. 4.Must be replaced, Always use a GFCI: (3,2,1), (5,4,3). 2.Loss of muscle control Using equipment outdoors that is labeled for use only in dry, indoor locations. -Wood. 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. What was Latoya's first mistake? 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. -Rubber. OSHA 30 Module 6: Personal Protective Equipme, OSHA 30 - Module 16: Recordkeeping & Reporting, OSHA 30 - Module 18: Safety and Health Progra, OSHA 30 - Module 11: Welding, Cutting and Bra, CRJ 200 Limitations (Official-ish) - MODDED (, SERE 100.2 Level A SERE (J3TA-US1329) (Civili, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, E. Russell Johnston, Ferdinand Beer, Phillip Cornwell. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. 3 0 obj Both could have prevented the accident from occuring. 2.Grounding Which of the following are insulators of electricity? OSHA Safety and Health Topics Page. 2.Yes, because he is using a portable power tool. b. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. c.911 Electrical Hazards Electrical hazards can be found in nearly every roofing work site. 0000012944 00000 n Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? -Glass. 0000002195 00000 n 0000011060 00000 n xYmo -ER/&@[D,_! g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 0000001908 00000 n 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. 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. 0000056642 00000 n The victim signaled the operator of the crane to extend the boom and lower the hoist cable. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 2.Using extension cords or electrical tools properly. 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. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). As a result, the ground prong of the welder plug did not insert into the ground terminal of the cord, so that as soon as a connection was made, the outside metal case of the welder became energized, electrocuting the victim. 0000024814 00000 n 0000013716 00000 n c.40,000 volts 0000421920 00000 n b.Not wearing insulating shoes or boots when she was handling electrical equipment How might this event affect the ability of animals to obtain energy to live? Easy to identify 0000002557 00000 n Select the correct answer and then click DONE. Select the correct answer and then click DONE. OSHA will keep all identities confidential. specifically addresses electrical protective devices. 0000007116 00000 n Draw a line from the item on the left that corresponds to the match on the right. c.falls. Select the correct answer and then click DONE. Electrical Safety Multiple Choice Questions and Answers for competitive exams. hazard or that their employer is not following OSHA's rules. Should Ajay use a GFCI? Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. [Flexible Cords] Cords that are not 3-wire type, not designed for hard-usage, or that have been modified, increase your risk of contacting electrical current. Use only extension cords that are marked with a designation code for hard or extra-hard usage. a) Ensure overhead power line safety a.Yes, as it is a mobile engine testing station. These short objective type questions with answers are very important for competitive exams as well as Board exams. 3.Clear If a defective power tool gives you an electric shock, how might your muscles react? 0000003413 00000 n Carly needs to use an extension cord with her corded nail gun. 1.Extension cords No GFCI's were used. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR If a worker has been retaliated against for using their rights, they On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. D 600v. c) Establish and enact an assured equipment grounding conductor program (AEGCP) 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 2.Something to transport the electrical current -- A conductor. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 30 days B. OSHA 29 CFR 1910, Subpart S . V1?`T`P``ya W3 |"H36K1A@, rO(V[|NAT30 qI? endstream endobj 221 0 obj <>/Filter/FlateDecode/Index[30 152]/Length 27/Size 182/Type/XRef/W[1 1 1]>>stream 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. 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. Identify the oxidizing and reducing agents. 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? %PDF-1.4 % a.Your thumb. It's okay to use extension cords with worn insulation, as . d. Match the outlet prongs to the extension cord. 0000004946 00000 n b.Ground Fault Critical Interrupter 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. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? De-energizing %PDF-1.4 % <> 1.A source of electrical current to flow. You should? What three things must be present for a current to flow through a conductor. 0000008392 00000 n s\A0W+ Used across walkways. C. near water. 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. b. 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. True. When does electricity become hazardous to humans? 0000055319 00000 n (D) None of the above. 4. 0000003254 00000 n The auger then fell across the other worker, the 24-year-old victim. c.Touching the motor Electrical Contractors Industry. Burns. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. This is action is also known as creating or completing an electrical circuit. -Conductor= permits the free flow of electricity. <>>> 0000003640 00000 n 0000007694 00000 n Apparently, his hand contracted and he was "locked" to the saw. Take any defective equipment out of service. A. wrap tape around the damaged spot to prevent electrical shocks. stream 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. 4 0 obj Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Use non-conductive wood or fiberglass ladders when working near power lines. 4,600. vpfuI)],s 1.Fingernails Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. d.Water, Other electrical hazards in the workplace include: d. Power outlets, ________ are anything that can transmit electrical current. 1. 0000003603 00000 n -Severe skin burns. 1.Damaged cover or insulation 0000005042 00000 n Which of the following factors determine how severe an electrical injury might be? What is the most common, non-fatal, electrical shock-related injury? OSHA 29 CFR 1910, Subpart P . 0000005632 00000 n 0000002150 00000 n 0000002403 00000 n 3. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 0000110659 00000 n Electrical hazards are life threatening incidents that could happen due to electricity. Select the choices that accurately define the common electrical term. b.Rod a.related to muscle damage. b.10 feet Quiz Question 9: Conductor insulation must be approved for the ___________ of use? Which of the following are insulators of electricity? 0000015549 00000 n This may damage your equipment and cause employee injuries. 0000002479 00000 n Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Remove cords from receptacles by pulling on the plugs, not the cords. . Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 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. 1.When you are using electricity near water Electrical safety quiz answers are given below. 3.No, because he will not be touching any grounded material when using the tool. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 4.Running through doorways. 3. 2.Placed along a wall. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. Quiz Question 3: Power cords can be damaged by which of the following? Overview. 128 0 obj <> endobj xref 128 26 0000000016 00000 n d.Adapter, What is a GFCI? OSHA 10 General Industry Test Answer Key WALKING. 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. a. b) Staples OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and lex has set up a mobile engine testing station in the maintenance area. 3.Vapor 2. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. d.Alert workers of any water in the area, GFCI is an acronym for: When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. 0000014257 00000 n endobj The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder.

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