camshafts? Answer Selected Answer: 4 A normally aspirated automobile engine loses about ________ power per 1000 feet of altitude. Answer Selected Answer: 3% A rotating force is called ________. Answer Selected Answer: Torque All of these can happen when engine compression is lower than normal‚ EXCEPT ________. Answer Selected Answer: Harder to crank engine All overhead valve engines ________. Answer Selected Answer: Have the valves located in the
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How to change a tire Getting a flat tire in the middle of nowhere is the worst thing a person has deal with‚ even though many people have roadside assistance now a days‚ it is very important to learn how to change a tire just in case roadside assistance is unavailable in the area you’re stuck in. Learning to change a tire doesn’t take up a lot of time and can be done in the matter of minutes with the right tools and before you know it you’ll be back on the road. In order to change a tire you will
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Procedure 1. H bridge theory was given by technician. 2. A circuit was set up as in figure 1. 3. H-bridge circuit was created. There were 4 switches and a motor in a circuit with two jumpers. 4. The theory was applied. The jumpers were connected to the alternate voltage supply. 5. The direction of DC motor was tested and determined. 6. All switches were in closed position at initial condition. 7. Only switch 1 and 4 was closed at the first condition as in figure 2(a). The direction of DC motor
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SAMPLE PROBLEMS: 112- Topic 1: ELECTRIC FORCES & ELECTRIC FIELDS. 1) Charges of - 6 and + 4 nC are 3 m apart. Determine the force they exert on each other‚ and the electric field at a point midway between them. |Solution: This is an electrostatics problem (stationary charges). Since the charges|[pic] | |are of opposite sign‚ they will attract each other. The forces are indicated in the|
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simple motor‚ or several coils‚ usually of several turns of insulated wire‚ wound onto the armature. The ends of the coils are connected to bars on the commutator. | The coils provide torque‚ as the current passing through the coils interacts with the magnetic field. As the coils are mounted firmly on the rotor‚ any torque acting on the coils is transferred to the rotor and thence to the axle. | Split-ring / commutator | The commutator is a broad ring of metal mounted on the axle at one end of the
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electromechanical system. All car powertrains drive a driveshaft that turns the drive wheels of the car. Because an internal combustion engine delivers energy best only over a small range of torque and speed‚ the crankshaft of the engine is usually attached to a switchable gear train that matches the needed torque at the wheels to the torque that can be delivered by the engine. HSD replaces the gear box‚ alternator and starter motor with a pair of electrical motor-generators (MG)‚ a computerized shunt system to control
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Retroactive Interference. Traditionally‚ it has been assumed that a major determinant of forgetting is interference. Whether potentially interfering information precedes (proactive interference‚ PI) or follows (retroactive interference‚ RI) the target information‚ memory performance appears almost always to be impaired. But does this mean that the target information is forgotten? The alternative to this storage failure (or unlearning/erasing) hypothesis view cites retrieval failure (e.g.‚ via
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spot in earth’s otherwise dirty shirt. Society was changed forever by the great innovations and breakthroughs from the 1800s‚ as they have a truly lasting effect on the human way of life. With the invention of the Telegraph‚ the Sewing machine‚ the Wrench and the Telephone we can clearly see the effects these inventions made in the fields of communication‚ mass production and metal work. By the 19th century advances in communication were being made and as the world became closer through colonialization
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APPLICATION NOTE ON REGENERATIVE BRAKING OF ELECTRIC VEHICLES AS ANTI-LOCK BRAKING SYSTEM Okan TUR1 Okan.Tur@mam.gov.tr 1 Ozgur USTUN2 oustun@mekatro.com R. Nejat TUNCAY2 ntuncay@mekatro.com The Scientific and Technologic Research Council of TURKEY (TUBITAK) Marmara Research Center (MRC) Energy Institute‚ PK.21 41470 Gebze-Kocaeli‚ TURKEY 2 Mekatro R&D‚ TUBITAK MRC Technology Free Zone Section B No:18 41470 Gebze-Kocaeli‚ Turkey Abstract Anti-locking brake systems (ABS) are
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Electrical Machines - Questions and Answers Information courtesy of ALSTOM. INDUCTION MOTOR CONTROL GEAR 1. What are the main functions of control gear? 1. To provide a means of starting and stopping the motor and‚ at the same time‚ of limiting the starting current if required. 2. To give adequate protection to the motor under all conditions. 3. To allow speed changing when required. 4. To provide means of braking the motor when required. 5. To reverse the direction of rotation
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