4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 3.Cramp -Damage to internal organs. Carly needs to use an extension cord with her corded nail gun. 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 . 0000089142 00000 n Apply a warning tag to any defective tool and do not use it until the problem has been corrected. Then answer the questions below. The source of the electricity was apparently a short in a receptacle, but examination revealed that the electrical equipment used by the contractor was in such poor condition that it was impossible to make a certain determination of the source of the short. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. Is not painted over A) Identify; Castigate; C) Evaluate; D) Modify; 3. Additionally, the ground prongs were missing from the two cords. 2. 0000108920 00000 n 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. Is split 4 0 obj OSHA will keep all identities confidential. Easy to identify How fast would the ball be moving at the moment of release? 1.Extension cords I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Provides information about the hazards that electrical workers may experience as a part of their jobs. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Which group would be more accurate when used in an accelerating spaceship? Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 0000414648 00000 n -Grounding= a conductive connection to the earth which acts as a protective measure. b+t6W' te+.W_{8u7Dt@1c. 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. 3.Something that causes current to flow through the . 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. [Power Tools]. Ground all exposed metal parts of equipment. <> Switch D 600v. :$#k9BPnZ{Qqe/reKy,'ZlB# 0000419562 00000 n Draw a line from the item on the left that corresponds to the match on the right. Fire 1.Using a fiberglass ladder when the possibility exists for contact with electricity. Select the correct answer and then click DONE. a.20,000 volts 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. Which of the following are electrical hazards? - Brainly.com 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. As she is adding in the chemicals, her hand touches the motor and it becomes energized. 0000000016 00000 n 12 months C. 6 months D. Never Q23. 1.Damaged cover or insulation Identify the oxidizing and reducing agents. [, Use all equipment according to the manufacturer's instructions. The ground wire was not attached on the male end of the cord's plug. 0000004793 00000 n 3. 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. 0000015549 00000 n startxref 1. 0000001646 00000 n xref 1. Electrical safety quiz answers are given below. Select the correct answer and then click DONE. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. What do tripped circuit breakers and blown fuses indicate? [, Do not modify cords or use them incorrectly. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. specifically addresses electrical protective devices. Protection is lost because it will not trip when the system's load has been exceeded. View Answer Answer: 600v 4 . 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). 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. 3.Clear 0000006866 00000 n 0000001908 00000 n Which of the following are caused by contact with electricity? 0000004686 00000 n 0000003715 00000 n Electrical Hazards Electrical hazards can be found in nearly every roofing work site. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. Match the length from job to outlet. OSHA 30 Construction Final Test Answer Key - Studylib Wearing a baseball cap Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? 2. The small electrical current enters his body through his left leg. 3.When you are using portable power tools As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS Ground all power supply systems, electrical circuits, and electrical equipment. 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. 2.Loose screws 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. 1476 0 obj <>stream Which of the following factors determine how severe an electrical injury might be? PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. Regarding hand protection employers should: A. 2.Loss of muscle control These short objective type questions with answers are very important for competitive exams as well as Board exams. 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. 0000017336 00000 n What is the minimum clearance distance you must maintain from the power lines? endobj Use only extension cords that are 3-wire type. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 0000001896 00000 n The contact lasts for 5 seconds before someone is able to shut off the power. OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet The victim was part of a crew that was constructing a concrete wall. b. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 0000007427 00000 n 4.Broken. 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. Quiz: Electrical Hazards. a. Gaseous matter 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. What was Latoya's first mistake? 0000003413 00000 n OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. %PDF-1.4 % Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. 0000012944 00000 n 3.Tears A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. In addition to contact with power lines, the top electrical hazards include: When does electricity become hazardous to humans? a.Extension cords 0000001604 00000 n Examples Of Electrical Hazards. Quiz Question 7: Which is not an insulator? 0000005050 00000 n Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 1. <>>> d.Adapter, What is a GFCI? *Effects are for voltages less than about 600 volts. 182 0 obj <> endobj xref 182 41 0000000016 00000 n If a defective power tool gives you an electric shock, how might your muscles react? 3. c. No, because the electricity is needed on a long-term basis. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Question 4: Which of the following is a type of burn caused by electrical hazards? Electrical - Overview | Occupational Safety and Health Administration endobj d. Power outlets, ________ are anything that can transmit electrical current. c.Gasoline eTool : Construction - Electrical Incidents | Occupational Safety and |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s 1.Is firmly connected 1.Missing b.Electrical tools He yelled for his co-workers to disconnect the power, which they did. 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. The ________ keeps the electricity on its intended path through the conductor. When it completes a circuit through the body. endobj Does the fall qualify as an electrical accident? Intentionally creating a low-resistance path that connects to the earth. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 3.Loose nuts 3.Draped over equipment. 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 True. A co-worker disconnected the power cord to the saw, too late to save the victim. 0000005406 00000 n The most dangerous place to use electrical equipment is? Examples of Equipment That Can Contact Power Lines. 2.Placed along a wall. DHPP0MHLHIPPXc f2LXL"dgJ:@ ys`llr-shH,Y@Z 23J0a_TXD;X,;&0i,i&f&T8h R/ v`,l. 440!2D9482q={LPXs +( endstream endobj 129 0 obj <> endobj 130 0 obj <> endobj 131 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageB]/ExtGState<>>> endobj 132 0 obj <> endobj 133 0 obj <> endobj 134 0 obj <> endobj 135 0 obj <>stream Both could have prevented the accident from occuring. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Water Question 2: Which of the following are ways . What factors determine the severity of Dirk's injuries? Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? Lockout/tagout procedures. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>