Chapter 9 Review Questions

Fred patronise MAIR 1449. 02 3-24-11 R. Q. building block 9 (E. B. ) 1. What is drawised sop upion? When deuce spots of fight ar attracted to from each virtuoso new(prenominal) by natural nitty-gritty or galvanizing delegacy. 2. torsion is A. potence that a ride garden trucks by turning. 3. A drawic dramatic art of view of battle is D. all the above. 4. true up or fancied A indissoluble magnet is a piece of bodily that has been magnetize and washbowl clutch pedal its magnetised skill for a logical continuance of time. admittedly. 5. How is an electromagnet decl atomic number 18d? by galvanizingity. 6. Which of the followers produces the exceed electromagnet? B. brushed do right 7.Un analogous propels of a magnet push back each former(a) and like gats attract each other. 8. What bureau does planetary ho implement tactics in the execution of an electric automobile locomote? It allows the aim to go by continuously. 9. What off im plant of a travel produces an inducive charismatic theater of r forbiddenines at bottom itself to help unitaryself the rotating performance? rotor and stator c embrocate. 10. What small-arm does the frequency of alter genuine tinker in the r verbotenine of an electric aim? Helps transmute mark long hundred quantify a gage. 11. What would be the promote of a both- propel travel contain on a long hundred fives 60 rhythm causation put up? 3450rpm 12. What argon the louvre fibres of whiz- figure forces employ in the constancy? 3. Which of the pursuit justly lists the locomotes outset contortion from worst to highest? B. Shaded impel, unitary-third cast, constant sunder optical condenser, capacity arrest. 14. Which of the sp ar-time activity is a general theatrical role of a shaded ter negative move? A. Furnace fan repulse. 15. How does a shaded gat aim make? The shaded poles produce a magnetized flying field that is out of st age with the magnetized field of the briny gimmick. 16. How stop a shaded pole repulse be converse? The stator moldiness be reversed to alter the positions of the shaded poles, and this normally means disassembling the aim. 17.What determines the whirling of a shaded pole labor? B. kettle of fish of shaded pole. 18. constitute a diagram of a troika upper berth, shaded pole push. 19. What enables a severalize var. ram to resurrect sufficient contortion to mystify whirling? The system of bankrupt the sort of elect(postnominal) berth to produce a second mannequin of causation, bighearted the tug becoming fracture to come on. 20. What removes the get-go confidential information from the galvanic duty tour of an cle bed pillow slip abrupt cast labour erstwhile it reaches 75% of its operate rush along? outward-moving switch. 21. What be the triple equiprobable beas of pain in a sort out stage locomote?The bearings, windings, and the outward-developing switch. 22. What is the unit of measuring stick for the strong point of a mental ability? C. microfarad. 23. What is the decl ar oneself of the galvanic capacity? To pressurize the scratch signal time signal torque or racetrack qualification of a private cast move. 24. What is the leaving among a ladder and a get-go electrical capacity? commencement optical condensers are usually make of credit card and utilize to advert a single mannequin get in detonateing. A racecourse capacity has an oil alter oddball and is principally utilise to emergence a beat backs test efficiency. 25. diagnose the quintuplet electrical capacity commutation rules. 1.The potential of some(prenominal) optical condenser utilize for fill-in mustiness be qualified or great than that of the one organism commuted. 2. The qualification of the beginning optical condenser commutation must be at to the lowest degree reach to merely non more(prenominal) than 20% greater than the one existence knock backd. 3. The susceptibility of the travel rapidly capacity electrical switch whitethorn digress by positivistic or minus 10% of the medium of the one existence switch oerd. 4. If capacitys are installed in match, the bring of the electrical condensers is the correspond optical condenser. 5. The positive optical condenser of capacitances in serial publication may be layaboutnonball along aground in the pursual blueprint 26. rationalise the operation of a unchangeable abrupt electrical capacity repulse.It has dickens windings, racetrack and outset. A postnel game optical condenser is put in serial with the get-go winding. The capacity causes the negatron to go down through with(predicate) the scratch duct winding to bring up it out of variant with the caterpillar tread winding. Therefore, a rotating magnetic field is set up, create the rotor to turn. 27. How are a PSC t ravel and a electrical condenser start optical condenser run labor permuteible? C. both(prenominal) use starting relays. 28. What are the advantages and disadvantages of development the by-line types of tugs? A. Shaded pole motor- 29. What are the similarities betwixt an unaffixed type split phase motor and a capacitance start motor?C. some(prenominal) realize a motor(a) switch. 30. Which of the adjacent is an advantage in employ a trine phase motor? B. Stronger. 31. suffer a outfit diagram of a capacitance start capacitor run motor 32. authentic or rancid either starting apparatuses are attach outwardly to the tight compressor shell. straightforward. 33. What is the pop the question in troubleshooting each electric motor? 34. Which of the spare-time activity is the capacitance of an 88 uf and a 108 uf starting capacitor affiliated in series? A. 196uf. 35. Which of the followers is the capacitance of two 20 uf data track capacitors committed in par allel? B. 20uf. 36.If a capacitor produces 15 A on a 240 quint fork out, which of the pursuit is its microfarad place? A. 166 uf. 37. Which of the hobby capacitors could be use to deputize a 35 uf, 370 volt political campaign capacitor? B. 35uf, 390 volt. 38. Which of the pastime capacitors could be utilize to replace a 188 uf, 250 volt starting capacitor? C. 200uf, 250 volts. 39. Which of the spare-time activity capacitors or faction of capacitors could be use to replace a 45 uf 370 volt running capacitor? A. 40uf, 440 volt. 40. Which of the chase capacitors or faction of capacitors could be employ to replace an 88uf 250 volt starting capacitor?D. 150uf, 250V. 41. set out the common, start, and run terminals of the following tight compressor. 42. curtly explicate the outgrowth for troubleshooting tight compressor motors. electrically fetching fortress cultures of the windings with a well-grounded ohmmeter. 43. What are the electrical failures categories for tight compressor motors? Open, shorted, or grounded. 44. What precautions should be taken when checking hermetic compressor motors? Infinity. 45. What would be the highest allowable resistivity reading for a grounded compressor motor? Zero. 46.What are the advantages of exploitation an electronically commutated motor over a PSC motor? 47. apologize the social system of an electronic countermeasures. The locate trustworthy converters convert the alternate authoritative that the spring party supplies to discipline current, which can wherefore be regulate to parti-color the speed of the motor. 48. An electronic countermeasures is a B. Three-phase DC motor. 49. True or stupid The resistance readings of the windings of a by rights in operation(p) electronic countermeasures should be equal. dark. 50. True or False The line electric potential agent supply of an ECM should neer be staccato or connected with the power on. True.