using a 30-amp breaker in a system with 15- or 20-amp receptacles. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. A) Identify; Castigate; C) Evaluate; D) Modify; 3. 0000002122 00000 n 2. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. b.Yes, because Bob was on . -Rubber. Carly needs to use an extension cord with her corded nail gun. 0000421920 00000 n 0000057373 00000 n 5.Twitch, Electrical shock may result in: -Current= the movement of electrical charge. (B) Switch sticks. Unless you know otherwise, assume that overhead lines are energized. 0000001908 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. 0000002733 00000 n 0000002557 00000 n Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires 0000002386 00000 n The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 0000013999 00000 n <> When inspecting extension cords, look for: |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Question 2: Which of the following are ways . 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. HWMo#7v#h>6,Z4- 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. a.Two-prong plug 0000004444 00000 n 0000002403 00000 n If a worker has been retaliated against for using their rights, they lb MKS Ajay needs to use a dewatering pump to drain standing water on a construction site. What do tripped circuit breakers and blown fuses indicate? 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. 0000021516 00000 n 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 2.Placed along a wall. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 0000001116 00000 n Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? 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: How might this event affect the ability of animals to obtain energy to live? !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 1. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. Which of the following can be the result of electric shock? <> c. Inductive objects xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t 3.When you are using portable power tools vpfuI)],s Looking for NFPA 70E Certification? Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. The NEC C. Suggestions After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. d.Adapter, What is a GFCI? The floor is covered in water and she is barefoot. 2.Loss of muscle control 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. 0000001896 00000 n 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). 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 0000017163 00000 n 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. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. startxref :$#k9BPnZ{Qqe/reKy,'ZlB# d. No, because an extension cord would not provide enough power. 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 . 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. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. -Damage to internal organs. -Grounding= a conductive connection to the earth which acts as a protective measure. 1.Pain 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. Overview. a.311 Electricity becomes hazardous when it takes an unintended path to complete the ________. 0000001646 00000 n 1. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. Select the correct answer and then click DONE. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. c.A measurement of electricity Explain the purpose and use of the MyPlate symbol. a. Gaseous matter Of the following choices, which are frequent electrical hazards [29 CFR 1926.416(a)(1)]. a.Shut off power within a fraction of a second Quiz Question 3: Power cords can be damaged by which of the following? hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 0000002385 00000 n 2.Using extension cords or electrical tools properly. D. Have an ANSI sticker and an expiration date. 0000089142 00000 n Take any defective equipment out of service. Explosion 3.Something that causes current to flow through the . Select the correct answer and then click DONE. Match the length from job to outlet. To be safe, you must think about your job and plan for hazards. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. c.Three-prong plug Fire 1.Cuts =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR Check your employee's electrical safety knowledge through an electrical safety quiz. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. 2. 2.Grease The following are electrical hazards: Shock. 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. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 3.Vapor This may damage your equipment and cause employee injuries. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 0000419562 00000 n Select the correct answer and then click DONE. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Protection is lost because it will not trip when the system's load has been exceeded. The ________ keeps the electricity on its intended path through the conductor. Lx*jWP# /c2)|]NXqAx>=~'[ 0000014257 00000 n Safe operation of hand and portable powered tools and other hand-held equipment. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. [Power Tools]. 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. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. c. No, because the electricity is needed on a long-term basis. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. What three things must be present for a current to flow through a conductor. 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. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? Explosion. ZR)!=w|; @uT C0? Is not painted over 0000004208 00000 n 3. These short objective type questions with answers are very important for competitive exams as well as Board exams. 1.Clench -Severe skin burns. 1.Fingernails b.Shut off power within five minutes of the imbalance a.Ground Fault Circuit Insulator The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Select the correct answer and then click DONE. b.811 3. 3.Loss of eyesight 3.ack of ground fault protection. C. near water. 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 1.Using a fiberglass ladder when the possibility exists for contact with electricity. c.Wood He may have dropped the extension cord at the site and not heard the connector break. 0000004965 00000 n d. 411, You are working with a 10-foot section of a conductive pipe near power lines. Use tools and equipment according to the instructions included in their listing, labeling or certification. In addition to contact with power lines, the top electrical hazards include: b. Deductive objects 4. 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. 1.Missing b.Metal What is the primary purpose of properly grounding equipment? Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. Examples Of Electrical Hazards. 1.Missing or broken path to ground. Examples of Equipment That Can Contact Power Lines. Select the choices that accurately define the common electrical term. 1452 0 obj <> endobj gYpV:+ 0000003771 00000 n When an electric shock occurs, your muscles may: Select the correct answer and then click DONE. 1. b+t6W' te+.W_{8u7Dt@1c. a.Supply power for tools or equipment on a temporary or short-term basis. The workers administered CPR to the victim, but to no avail. 0000000816 00000 n b.Electrical tools 0000022637 00000 n Used across walkways. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. c.falls. b) Staples 1 0 obj s\A0W+ Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. The contact lasts for 5 seconds before someone is able to shut off the power. Electric current cannot exist without an unbroken path to and from the conductor. Extension cords may become a trip hazard when: (See NFPA 70E-2021 Article 130 and OSHA subpart S part . 0000009628 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? As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. 2.Using an aluminum ladder when the possibility exists for contact with electricity. 12 months C. 6 months D. Never Q23. 0000007694 00000 n True. Ground all power supply systems, electrical circuits, and electrical equipment. . 3 0 obj Use only extension cords that are 3-wire type. A) 120v . d.A power tool, A GFCI is designed to: Provides information about the hazards that electrical workers may experience as a part of their jobs. 3.Clear D 600v. c) Establish and enact an assured equipment grounding conductor program (AEGCP) A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. 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. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. (D) None of the above. Select the correct answer and then click DONE. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. b.burns. Quiz Question 1: Which of the following is not a category of electrical burns? Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder.

Aicpa Tax Return Checklist, Wheatley High School Basketball, Articles W