which of the following are electrical hazards osha quizlet

Select the correct answer and then click DONE. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? When does electricity become hazardous to humans? a.Ground Fault Circuit Insulator 0000005042 00000 n 0000420277 00000 n 3 0 obj Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? hazard or that their employer is not following OSHA's rules. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Out of several possible scenarios, the most likely was contact between the exposed wires of an extension cord and a screw that protruded from the receptacle, which had its face plate removed. Yes, because he will be using electricity near water. 2.Using extension cords or electrical tools properly. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Quiz Question 2: Which is acceptable when using powdered tools? A. indoors. a.Two-prong plug 2.Grounding Which of the following are insulators of electricity? Select the correct answer and then click DONE. 3 0 obj Should Ajay use a GFCI? b.Metal 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. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . 0000427811 00000 n Select the correct answer and then click DONE. 2.Flooding b.Rod Select the choices that accurately define the common electrical term. 1.Cuts Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 4. Of the following choices, which are frequent electrical hazards Lockout/tagout procedures. 1.Is faulty d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 1. The workers administered CPR to the victim, but to no avail. <> 3.When you are using portable power tools Select the correct answer and then click on DONE. c.Power lines The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Improper Use of Extension and Flexible Cords. Computers Explain the purpose and use of the MyPlate symbol. gYpV:+ -Conductor= permits the free flow of electricity. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream The auger then fell across the other worker, the 24-year-old victim. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. What is the output of the program in Exercise 17, if first = 26 and second = 8? Examples of Equipment That Can Contact Power Lines. 0000000816 00000 n Which of the following injuries can occur when muscles flex or twitch from an electrical shock? Work performed on an electrical system within reaching distance of energized components is_____work. Ajay needs to use a dewatering pump to drain standing water on a construction site. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 3.Something that causes current to flow through the . 0000005734 00000 n 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. Hand-operated metal shifting ropes or cables of electric elevators. Arc Flash. 0000005050 00000 n 0000002150 00000 n Due to the dynamic, rugged nature of construction work, normal use of electrical equipment at your site causes wear and tear that results in insulation breaks, short-circuits, and exposed wires. Ground all power supply systems, electrical circuits, and electrical equipment. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. Identify the oxidizing and reducing agents. Continually audit cords on-site. 0000056642 00000 n 0000022637 00000 n D. Have an ANSI sticker and an expiration date. b.Electrical tools 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. 0000414648 00000 n xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t BE SAFE! -Voltage= a measure of electrical force. Which group would be more accurate when used in an accelerating spaceship? The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. b.30,000 volts Question 1: Which of the following is a danger of electricity? 3. 0000004946 00000 n Electrical safety quiz answers are given below. OSHA 10 General Industry Test Answer Key WALKING. a.Extension cords Quiz Question 7: Which is not an insulator? Cardiac arrest or death - A result of electrical shock. stream c. Match the color of the tool to the color of the extension cord. The ________ keeps the electricity on its intended path through the conductor. 4.Must be replaced, Always use a GFCI: B. outdoors. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). and more. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. a.Electricity 0000057373 00000 n 0000007427 00000 n 0000005520 00000 n 0000001672 00000 n 0000000016 00000 n Frequently inspect electrical systems to insure that the path to ground is continuous. 3.Vapor (E) a, b, and c. 2. Using multi-receptacle boxes designed to be. Should he use an extension cord to power it? Death is probable. 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). The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. 0000000816 00000 n The auger has a one-quarter horsepower motor encased in a metal housing with two handles. OSHA will keep all identities confidential. Explosion. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. When an electric shock occurs, your muscles may: b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Does the fall qualify as an electrical accident? What type of burns are the result of current flowing through and exiting the body? Select the correct answer and then click DONE. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. 0000003254 00000 n These short objective type questions with answers are very important for competitive exams as well as Board exams. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. c.15 feet 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). -Wood. 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. Best practices with power lines include: The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ 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. 0000007464 00000 n 0000001814 00000 n Visually inspect all electrical equipment before use. Select the correct answer and then click DONE. 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. d.Water, Other electrical hazards in the workplace include: B. 4.Flex 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 . Select the correct answer and then click DONE. Get All Answers to OSHA 30 Construction Final Exam. An employee was texturing a wall using an air compressor. 0000007741 00000 n Select the correct answer and then click DONE. (A) Shotgun sticks. 4. d.Add more outlets. <>>> Apply a warning tag to any defective tool and do not use it until the problem has been corrected. -Severe skin burns. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Match the length from job to outlet. Using cords or tools with worn insulation or exposed wires. 1. a.20,000 volts Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Muscular contraction and nerve damage occur; death likely. [, Do not modify cords or use them incorrectly. 0000004273 00000 n As she is adding in the chemicals, her hand touches the motor and it becomes energized. 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. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. One hand drill was not grounded, and the other had no safety plate. Which of the following are insulators of electricity? Provides information about the hazards that electrical workers may experience as a part of their jobs. 0000001731 00000 n xYmo -ER/&@[D,_! . 0000005716 00000 n 2. You should? =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR Burns. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. lex has set up a mobile engine testing station in the maintenance area. As a result, the ground prong of the welder plug did not insert into the ground terminal of the cord, so that as soon as a connection was made, the outside metal case of the welder became energized, electrocuting the victim. stream a) Door or window edges specifically addresses electrical protective devices. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 3.Body tissue 0000017163 00000 n 2.Grease Use tools and equipment according to the instructions included in their listing, labeling or certification. 0000004686 00000 n 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Be sure equipment that has been shop fabricated or altered is in compliance. a.Your thumb. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. The following hazards are the most frequent causes of electrical injuries Contact with Power Lines, Lack of Ground-fault Protection, Path to Ground Missing or Discontinuous, Equipment Not Used in Manner Prescribed, and Improper Use of Extension and Flexible Cords. b.Not wearing insulating shoes or boots when she was handling electrical equipment q>NmnLNmb$"Iyx1bD9.~Ll. 3. When current travels through your body - Definition of electric shock. Is the west coast of Africa a plate boundary? When used on the moon? 1. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. 0000004793 00000 n 0000004444 00000 n b. Deductive objects % Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Which of the following can be the result of electric shock? 2.Complete d.The body of the power tool. Which of these can be used as insulating live-line tools for electrical protection. d.50,000 volts. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp 4.Circuit breakers, When inspecting power tools, look for: 1 0 obj How fast would the ball be moving at the moment of release? How will she choose the correct cord? Effective means of controlling power line hazards include: c.Touching the motor Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. c.Three-prong plug Question 2: Which of the following is NOT a category of electrical burns? 0000421920 00000 n 1.Flammable liquids OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . To avoid injury or death, you must understand and recognize hazards. True. using a 30-amp breaker in a system with 15- or 20-amp receptacles. Examples Of Electrical Hazards. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. c) Establish and enact an assured equipment grounding conductor program (AEGCP) Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 0000013999 00000 n 0000012944 00000 n 0000002403 00000 n As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 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. Underground electrical hazards are: A. 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. Use only extension cords that are marked with a designation code for hard or extra-hard usage. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 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. 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. Provide a safe path to earth ground for electricity. 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. 0000089142 00000 n Explosion 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. SECTION #4 | Participant Guide 2 Electrical Safety mELECTRICAL SAFETYm mACTIVITY 1 - GROUNDINGm In your small group, read fact sheets A and B, and the following scenario. 1.Pain 1. b. What do tripped circuit breakers and blown fuses indicate? a. Use non-conductive wood or fiberglass ladders when working near power lines. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. a) Ensure overhead power line safety b.The tool's power cord. What factors determine the severity of Dirk's injuries? b+t6W' te+.W_{8u7Dt@1c. 1452 0 obj <> endobj Select the correct answer and then click DONE. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: Visually inspect all electrical equipment before use. 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. endobj She finds several available in the shop. Which of the following can be caused by exposure to an arc flash? 4. 0000004208 00000 n Use only extension cords that are 3-wire type. 4 0 obj ( A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. The following references aid in recognizing hazards associated with electrical work. Electrical Safety Multiple Choice Questions and Answers for competitive exams. Draw a line from the item on the left that corresponds to the match on the right. Supply power for tools or equipment on a long-term basis. b.10 feet 4 0 obj d.Constructive objects, Select all answers that apply to the following statement and then click DONE. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. Using equipment outdoors that is labeled for use only in dry, indoor locations. B 208v. Question 1: Which of these is a type of Ground Fault Circuit Adapter? b. d. No, because an extension cord would not provide enough power. 0000421627 00000 n

Why Shouldn't You Whistle At Night Native American, Blown Saves Team Stats 2021, Weyerhaeuser Mansion Weddings, What Channel Does Maury Come On Xfinity, Leicester Royal Infirmary Consultants List, Articles W