which of the following are electrical hazards osha quizletwhat causes chills after knee replacement surgery

OSHA 10-Hour Safety Course - Electrical Safety Page 5 of 5 Use the three-stage safety model to stay safe: recognize, evaluate, and control hazards. Equipment used in manner prescribed. Switch Latoya is using a mixing motor to mix pool chemicals in a plastic drum. Electrical Safety Multiple Choice Questions and Answers for competitive exams. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Get All Answers to OSHA 30 Construction Final Exam. hbb``b``3N0  endstream endobj 183 0 obj <>/Metadata 28 0 R/Names 184 0 R/Outlines 23 0 R/Pages 27 0 R/StructTreeRoot 30 0 R/Type/Catalog/ViewerPreferences<>>> endobj 184 0 obj <> endobj 185 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/Properties<>>>/Rotate 0/StructParents 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 186 0 obj <> endobj 187 0 obj <> endobj 188 0 obj <>stream (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Other protective measures include guarding or insulating the lines. -Rubber. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 1. Select the correct answer and then click DONE. [Power Tools]. Bob is asked to repair some overhead wiring, requiring the use a ladder. Question 2: Which of the following is NOT a category of electrical burns? Select the correct answer and then click DONE. <>>> The floor is covered in water and she is barefoot. 3.When you are using portable power tools 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? What is the output of the program in Exercise 17, if first = 26 and second = 8? 0000420887 00000 n . OSHA 29 CFR 1910, Subpart P . xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Question 2: Which of the following are ways . Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? An employee was texturing a wall using an air compressor. 0000004686 00000 n Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. Quiz Question 3: Power cords can be damaged by which of the following? -Glass. C. near water. If you are touching any grounded material while using a power tool 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 0 obj She finds several available in the shop. 0000420564 00000 n [, Do not modify cords or use them incorrectly. Besides personal bodily injury, what other electrical hazards can be found in the workplace? Safe operation of hand and portable powered tools and other hand-held equipment. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? ZR)!=w|; @uT C0? Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Electricity will form a "path" or "loop". 4.The amount of current, An electrical burn may affect: Select the correct answer and then click DONE. c) Establish and enact an assured equipment grounding conductor program (AEGCP) 0000004444 00000 n 0000014257 00000 n 0000008392 00000 n 1.Cuts As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. endobj Freeze The most dangerous place to use electrical equipment is? a.A small current A) 120v . 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. _.9u'2G_0 Ue]e"x5|Y As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 0000003900 00000 n Used across walkways. Should he use an extension cord to power it? When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Quiz: Electrical Hazards. Co-workers provided CPR, but were unable to revive the victim. 3. [Flexible Cords and Power Tools]. Frequently inspect electrical systems to insure that the path to ground is continuous. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. 128 0 obj <> endobj xref 128 26 0000000016 00000 n (C) Hot sticks. 2.Grounding b) By supplying GFCIs, or ground-fault circuit interrupters View Answer Answer: 600v 4 . Use tools and equipment according to the instructions included in their listing, labeling or certification. b. Deductive objects Select the correct answer and then click DONE. %PDF-1.4 % 0000419562 00000 n d. heart attacks. a) Door or window edges 3.Tears [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. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . To be safe, you must think about your job and plan for hazards. 2.Grease 0000110659 00000 n While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. a. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. Lockout/tagout procedures. Question 3: A/an ____________ is a unit of measurement for electrical resistance. The source of the shocks -- the saw -- was not replaced. Provides information about the hazards that electrical workers may experience as a part of their jobs. Intentionally creating a low-resistance path that connects to the earth. 1. *Effects are for voltages less than about 600 volts. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 1.When you are using electricity near water Select the correct answer and then click on DONE. 0000002150 00000 n 0000420277 00000 n Outlets 2. a.Supply power for tools or equipment on a temporary or short-term basis. 0000004884 00000 n The following references aid in recognizing hazards associated with electrical work. Select the correct answer and then click DONE. a) Ensure overhead power line safety c.Three-prong plug 3.The length of time the body is in contact with electricity 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. Both could have prevented the accident from occuring. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. The modification of the plug was not an intended use or prescribed by the manufacturer. 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. b.Rod 0000021516 00000 n lb MKS Select the choices that accurately define the common electrical term. Use only extension cords that are marked with a designation code for hard or extra-hard usage. 0000000816 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. b.Shut off power within five minutes of the imbalance c. Match the color of the tool to the color of the extension cord. b.30,000 volts Does the fall qualify as an electrical accident? The following are electrical hazards: Shock. Best practices with power lines include: The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). The power switch on the welder was already in the "on" position, and the female end of the extension cord, which was spring loaded, had apparently been dropped and broken. 0000003771 00000 n Explosion It is important to note that NFPA 70E is a . Looking for NFPA 70E Certification? OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Isolating, Power lines may be located underground. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. He yelled for his co-workers to disconnect the power, which they did. d) All of the above. What is the minimum clearance distance you must maintain from the power lines? De-energizing When current travels through your body - Definition of electric shock. 2.Flooding Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Cardiac arrest or death - A result of electrical shock. Most of the hydrides of Group 1A and Group 2A metals are ionic. d. Match the outlet prongs to the extension cord. c.Absorb any water around the area 0000427811 00000 n Water OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. 5 feet <> 3. No GFCI's were used. 3. 0000012944 00000 n startxref Continually audit cords on-site. Provide a safe path to earth ground for electricity. 0000004793 00000 n D 600v. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. NFPA 70E defines those special circumstances and sets rigid electrical safety limits on voltage exposures, work zone boundary requirements and necessary personal protective equipment (PPE). The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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. Remove cords from receptacles by pulling on the plugs, not the cords. 0000007694 00000 n a.Yes, because the electrical shock caused the fall. Electrical Contractors Industry. Which of the following are conductor of electricity? hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l xYmo -ER/&@[D,_! After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 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: Select the correct answer and then click DONE. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. 0000003715 00000 n High humidity a.311 Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 1.Missing Underground electrical hazards are: A. b.Not wearing insulating shoes or boots when she was handling electrical equipment d.A power tool, A GFCI is designed to: <> The ________ keeps the electricity on its intended path through the conductor. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. A co-worker disconnected the power cord to the saw, too late to save the victim. Determine duration, frequency, degree of exposure to hazards and physical stress. How might this event affect the ability of animals to obtain energy to live? Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 0000007116 00000 n 0000089142 00000 n b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q Select the choices that accurately define the common electrical term. 0000005520 00000 n B 208v. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Whether the hazard is posed by worn or damaged power tools or cords, improperly grounded tools or equipment, or the presence of standing water, it is the responsibility of the contractor to make sure the tools and equipment 0000000816 00000 n SCENARIO: You encounter a co-worker on a residential remodeling job. Electrical current travels through insulated ________. 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. 182 0 obj <> endobj xref 182 41 0000000016 00000 n D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 1452 0 obj <> endobj He may have dropped the extension cord at the site and not heard the connector break. Which of the following are insulators of electricity? OSHA 29 CFR 1910.147 . 0000028595 00000 n 2.Loose screws The NEC C. Suggestions Using tools and equipment that can contact power lines increases the risk. When does electricity become hazardous to humans? 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. stream s\A0W+ HWMo#7v#h>6,Z4- 0000006866 00000 n Select the correct answer and then click DONE. Explosion. 0000001731 00000 n 0000002876 00000 n a. Gaseous matter Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. The workers had removed their shirts and were sweating. hazard or that their employer is not following OSHA's rules. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ Visually inspect all electrical equipment before use. 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. -Severe skin burns. c.Gasoline BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 0000004965 00000 n 0000421627 00000 n Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. Improper Use of Extension and Flexible Cords. %PDF-1.4 % Visually inspect all electrical equipment before use. a.Electricity c.911 Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) 3. Wearing a baseball cap b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 2.Loose bolts q>NmnLNmb$"Iyx1bD9.~Ll. )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. OSHA 10 General Industry Test Answer Key WALKING. 2.Is working properly When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 0000004208 00000 n Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 0000414648 00000 n Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 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. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. 4.Running through doorways. Identify the oxidizing and reducing agents. Select the correct answer and then click DONE. Arc Flash. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. % This is action is also known as creating or completing an electrical circuit. 1.Clench 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). c.Touching the motor Select the correct answer and then click DONE. 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). 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. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. Death is probable. 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. 1.Flammable liquids 0000422244 00000 n How will she choose the correct cord? 1 0 obj What is the primary purpose of properly grounding equipment? b) Staples BE SAFE! Check your employee's electrical safety knowledge through an electrical safety quiz. Using equipment outdoors that is labeled for use only in dry, indoor locations. 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. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 0000005734 00000 n 0 0000010155 00000 n a.Ground Fault Circuit Insulator -Current= the movement of electrical charge. 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. 0000002195 00000 n Test your knowledge with our electrical safety quiz below. Burns. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 1.Missing or broken path to ground. Is not painted over Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. Quiz Question 2: Which is acceptable when using powdered tools? b. c. Extend the reach of the power tool. The accident site was wet; also, humidity was high and the victim was sweating. 0000421920 00000 n Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. Use non-conductive wood or fiberglass ladders when working near power lines. 1.The humidity of the environment 0000010603 00000 n d. Not checking to make sure that the motor was properly grounded, If the circuit does not turn off when testing the GFCI, the GFCI: Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. She has an older drill with a steel housing and a 3-prong plug. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 4. Electrical safety quiz answers are given below. s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW` { endstream endobj 191 0 obj [/ICCBased 211 0 R] endobj 192 0 obj <> endobj 193 0 obj <> endobj 194 0 obj <> endobj 195 0 obj <> endobj 196 0 obj <>stream 1. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. -Voltage= a measure of electrical force. Apparently, his hand contracted and he was "locked" to the saw. When used on the moon? Work performed on an electrical system within reaching distance of energized components is_____work. OSHA Safety and Health Topics Page. Death. 0000002386 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. 4.Broken. 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. ( Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Electricity becomes hazardous when it takes an unintended path to complete the ________. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Computers Is split The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 0000013716 00000 n Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. trailer Question 2: Which of the following are ways employers must protect their employees on the workplace? Which group would be more accurate when used in an accelerating spaceship? I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 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. 0000108920 00000 n One handle has a deadman's switch. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. 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. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR c.Guaranteed Fault Circuit Interrupter 4.Cardiac arrest To avoid injury or death, you must understand and recognize hazards. The victim was part of a crew that was constructing a concrete wall. (b) The same reaction can also be classified as a redox reaction. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: 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 Best Practices with Power Lines 1. %%EOF OSHA will keep all identities confidential. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 4.Must be replaced, Always use a GFCI: Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Match the length from job to outlet. 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. 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.

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