OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 0000420277 00000 n
2.Grounding Stay at least 10 feet away from overhead power lines. 0000108653 00000 n
Question 4: Which of the following is a type of burn caused by electrical hazards? Does the fall qualify as an electrical accident? Most of the hydrides of Group 1A and Group 2A metals are ionic. _5JKy. 3.When you are using portable power tools (b) The same reaction can also be classified as a redox reaction. 0000004965 00000 n
b.Electrical tools These short objective type questions with answers are very important for competitive exams as well as Board exams. 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. 0000068035 00000 n
0000002195 00000 n
Ground all power supply systems, electrical circuits, and electrical equipment. Which of the following are insulators of electricity? 0000006152 00000 n
0000419562 00000 n
b.burns. B. outdoors. -Wood. Which of the following are conductor of electricity? Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). 3. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Underground electrical hazards are: A. 0000001814 00000 n
I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Intentionally creating a low-resistance path that connects to the earth. 1452 0 obj
<>
endobj
c.40,000 volts ZR)!=w|; @uT C0? 2 0 obj
trailer
What type of burns are the result of current flowing through and exiting the body? 0000001646 00000 n
1. 0000007741 00000 n
OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 1. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. stream
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: 0000003413 00000 n
Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Effective means of controlling power line hazards include: OSHA 29 CFR 1910, Subpart S . What factors determine the severity of Dirk's injuries? 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. The small electrical current enters his body through his left leg. Determine duration, frequency, degree of exposure to hazards and physical stress. Ajay needs to use a dewatering pump to drain standing water on a construction site. 4.Cardiac arrest In which of the following workplace situations are you at risk for coming into contact with live electrical . Dust vpfuI)],s 1.Pain OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Use non-conductive wood or fiberglass ladders when working near power lines. Look for overhead power lines and buried power line indicators. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. D 600v. As she is adding in the chemicals, her hand touches the motor and it becomes energized. b.A fast-acting switch monitoring current flow 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. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. Electrical current travels through insulated ________. %PDF-1.4
%
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. 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.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: *Effects are for voltages less than about 600 volts. Test your knowledge with our electrical safety quiz below. 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. 0000003900 00000 n
c. Extend the reach of the power tool. Quiz Question 2: Which is acceptable when using powdered tools? A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. 0000001495 00000 n
Question 1: Each year, approximately __________ workers suffer from electricity related injuries. 2.Is working properly [Flexible Cords and Power Tools]. d. Match the outlet prongs to the extension cord. Select the correct answer and then click DONE. Select the correct answer and then click DONE. Use only cords, connection devices, and fittings that are equipped with strain relief. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Which of the following part of you body can burn if you come in contact with electricity? She has an older drill with a steel housing and a 3-prong plug. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. endobj
4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 3.ack of ground fault protection. [Power Tools]. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. 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. The modification of the plug was not an intended use or prescribed by the manufacturer. 0000004921 00000 n
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 . Before using the equipment, be sure that the ground wire: [. If a defective power tool gives you an electric shock, how might your muscles react? 3.Vapor 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 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. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? 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. c.Three-prong plug b.Metal Electrical safety quiz answers are given below. Quiz: Electrical Hazards. What is the most common, non-fatal, electrical shock-related injury? The following references aid in recognizing hazards associated with electrical work. Remove cords from receptacles by pulling on the plugs, not the cords. 1.Clench 3.Tears 0000001731 00000 n
2.Loose bolts Select the correct answer and then click DONE. Equipment used in manner prescribed. [29 CFR 1926.416(a)(1)]. 1.Missing 2. Additionally, the ground prong was missing and there was no GFCI protection. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Visually inspect all electrical equipment before use. Do not remove ground prongs from cord- and plug-connected equipment or extension cords.
0000004274 00000 n
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. 0000004208 00000 n
Potential hazards of electricity are preventable if you do which of the following listed below? 0000004946 00000 n
Select the correct answer and then click DONE. (D) None of the above. d.A power tool, A GFCI is designed to: Best practices with power lines include: 0000000816 00000 n
q>NmnLNmb$"Iyx1bD9.~Ll. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. HWMo#7v#h>6,Z4- She finds several available in the shop. [, Use all equipment according to the manufacturer's instructions. 0000110659 00000 n
Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. c. Inductive objects A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. 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
Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. b.Shut off power within five minutes of the imbalance De-energizing D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. OSHA 29 CFR 1910.147 . 0000005716 00000 n
b.10 feet 2.Yes, because he is using a portable power tool. Since the outlet at the adjacent property had no socket for a ground prong, the extension cords were plugged into the outlet using an adapter, but the ground wire of the adapter was not grounded. When it completes a circuit through the body. %PDF-1.4
%
Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. High humidity The ground wire was not attached on the male end of the cord's plug. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 4.No, because he does not need to use an extension cord. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Best Practices with Power Lines 1. Electricity becomes hazardous when it takes an unintended path to complete the ________. An employee was texturing a wall using an air compressor. %
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. 1.Missing or broken path to ground. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Additionally, the ground prongs were missing from the two cords. 4,600. 0000421627 00000 n
5. Death is probable. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. c.Gasoline 0000005042 00000 n
0000002479 00000 n
1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Explain the purpose and use of the MyPlate symbol. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. -Rubber. a) Door or window edges The accident site was wet; also, humidity was high and the victim was sweating. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. 1.Damaged cover or insulation What is the primary purpose of properly grounding equipment? c.Power lines Match the length from job to outlet. H. Extension cords are used to: 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. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. 3.No, because he will not be touching any grounded material when using the tool. Frames of non-electrically driven elevator cars to which electric conductors are attached. 1.Fingernails The ________ keeps the electricity on its intended path through the conductor. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. 0000007116 00000 n
3 0 obj
The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. 1.A source of electrical current to flow. c.Touching the motor hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Hand-operated metal shifting ropes or cables of electric elevators. Extension cords had poor splices, no grounds, and reversed polarity. c.Guaranteed Fault Circuit Interrupter Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. When inspecting extension cords, look for: a.Yes, because the electrical shock caused the fall. <>
d. No, because an extension cord would not provide enough power. 0000017336 00000 n
0000011060 00000 n
endobj
Examples of Equipment That Can Contact Power Lines. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. c. No, because the electricity is needed on a long-term basis. OSHA 29 CFR 1910, Subpart P . . gYpV:+ 0000001672 00000 n
Explosion 128 0 obj
<>
endobj
xref
128 26
0000000016 00000 n
trailer
<<11AC4BACEBCA4B32A885F1120BD3A307>]>>
startxref
0
%%EOF
153 0 obj
<>stream
The workers administered CPR to the victim, but to no avail. 1.Cuts 0000002733 00000 n
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: xref
HJ=S~68438IR/:VR C Y<7H*$F>ya)N1bTa+'OdzydV9QS]b{}(=q?pH,mt8{Ag ]wp?2N$AfnhBL!jV=6ho)5jA8H`Bkh{T[v\G%b|4| Eo*cF ]TBGjB[r6)WzCkQ;Bx(]*JG;&o0TV.P=s4Gs(&e~}j76,-6at$]r**-I!o66PqK.z
"*D 2. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires b.Not wearing insulating shoes or boots when she was handling electrical equipment Select the correct answer and then click DONE. 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. 5.Twitch, Electrical shock may result in: You need to evaluate the situation you are in and assess your . 3. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. 0000003254 00000 n
4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. %PDF-1.5
Be sure equipment that has been shop fabricated or altered is in compliance. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. Explosion. 0000018681 00000 n
A) 120v . B 208v. If you are touching any grounded material while using a power tool Apparently, his hand contracted and he was "locked" to the saw. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. Continually audit cords on-site. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 1.Is faulty b.The tool's power cord. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . <<7628BB2D46738F42B2FC6393656F4718>]>>
Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Select the correct answer and then click DONE. 0000000816 00000 n
3.The length of time the body is in contact with electricity 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. Select the correct answer and then click DONE. 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. 0000007464 00000 n
0000022637 00000 n
a.Electricity 0000024814 00000 n
3 0 obj
0000420887 00000 n
Using multi-receptacle boxes designed to be. 2. Draw a line from the item on the left that corresponds to the match on the right. 2.Using an aluminum ladder when the possibility exists for contact with electricity. 0000003603 00000 n
d. Power outlets, ________ are anything that can transmit electrical current. Co-workers provided CPR, but were unable to revive the victim. <>
2.The person's physical condition 0000028595 00000 n
Unless you know otherwise, assume that overhead lines are energized. 4. -Glass. a) Ensure overhead power line safety 4. Other protective measures include guarding or insulating the lines. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder.