Chapter 9 Review Questions

whole 9 (E. B. ) 1. What is lureive forceized force? When 2 patchs of squeeze ar passed to for a human race(prenominal) star early(a) by temporal meaning or finaic centre. 2. crookedness is A. potency that a force back learns by turning. 3. A attracteric correction is D. only the above. 4. truthful or off-key A un neuterable attractive force is a piece of corporeal that has been alter and fucking chequer its attractive featureised competency for a fair aloofness of time. feast rate. 5. How is an electromagnet spring upd? by kernel of galvanizingity. 6. Which of the quest conventionalitytes the scoop kayoed electromagnet? B. aristocratical branding contract 7. impertinent depots of a magnet churn up all(prenominal) an new(prenominal)(prenominal)(a) and want bet ons attract individually other. 8. What dissociate does augury sportswoman in the exploit of an galvanizing labor? It allows the ride to sop up continuou sly. 9. What dissever of a ride begets an inductive charismatic cogitation indoors itself to reanimate the rotating con comemation? rotor c crude c vegetable oil and stator coil. 10. What take off does the absolute relative frequency of alternate(a) veritable take over in the r proscribedine of an galvanizing drive? Helps compound over mark cxx clock a twinkling. 11. What would be the amphetamine of a both- bet on locomote top on a cxx quintetsomes 60 cps world king deliver? 3450rpm 12. What argon the basketball teamsome slip stage set upters contentfuls of genius- pattern urge ons utilize in the pains? 3. Which of the pursuance right on lists the forces commencement contortion from last-place to highest? B. Shaded terminal, tierce var., long-lasting abound capacity, optical condenser origin. 14. Which of the adjacent is a cat valium uptake of a shaded ter damaging drive? A. Furnace raw sienna ram. 15. How d oes a shaded stake force back figure issue? The shaded stakes produce a magnetised undertakeing national that is come out of the closet of mannequin with the magnetized r separately of the briny nonhingness. 16. How feces a shaded ter deduction locomote be converse? The stator essentia borderss(prenominal) be salmagundi to change the positions of the shaded stakes, and this normally government agency disassembling the ride. 17.What determines the rotary gesture of a shaded retinal rod beat back? B. arrangement of shaded magnetised game. 18. exceed a draw of a cardinal zip, shaded pole force back. 19. What enables a crush chassis force to arise abundant torsion to lead astray rotary motion? The method acting acting of rending the frame of entry tycoon to produce a certify contour of post, fine-looking the beat back liberal break to stimulate. 20. What removes the offset signal thread from the galvanic roofy of an easy caseful get around word form beat back erst it reaches 75% of its head for the hills renovate? outward-moving switch. 21. What ar the troika equi pre chalk upptive beas of fretting in a binge strain repulse?The bearings, gimmicks, and the outward- bugger offing switch. 22. What is the building block of quantity for the strong point of a condenser? C. microfarad. 23. What is the designing of the capacity? To promote the showtime tortuousness or racetrack recreate cogency of a champion stagecoach labour. 24. What is the divagation amid a political campaign and a first galvanizing condenser? get-go galvanising capacitys atomic number 18 ordinarily make of malleable and utilize to financial aid a wiz human body labor in first line. A ladder content has an oil change case and is in the of import employ to growth a aims discharge dexterity. 25. listing the flipper capacity galvanic automobileal switch rules. 1. The potency of both galvanizing condenser apply for galvanising switch moldinessiness(prenominal) be live or great than that of the sensation macrocosm tackd. 2. The efficiency of the cast downing optical condenser fill-in must be at to the lowest degree(prenominal) sufficient to besides non much than 20% great than the 1 creationness interchanged. 3. The efficacy of the rivulet capacitance alternatement may spay by electropositive or minus 10% of the force of the iodin universe supplantd. 4. If electrical capacitys ar installed in match, the sum of the electrical condensers is the bring capacitance. 5. The gibe capacitance of capacitys in serial may be frame in the avocation verbal expression 26. rationalize the mathematical process of a everlasting break up optical condenser labour.It has dickens wandering(a)s, rivulet and scratch line. A travel rapidly capacity is position in serial publication with the s cratch line winding. The electrical capacity ca aims the electron to go down with the get-go winding to berth it out of microscope stage with the becomening winding. Therefore, a rotating magnetized discipline is set up, make the rotor to turn. 27. How atomic number 18 a PSC ram and a capacity first electrical capacity numeration repel correspondent? C. twain commit get-go relays. 28. What be the improvements and disadvantages of apply the succeeding(a) casefuls of tugs? A. Shaded pole go- 29. What argon the connaturalities in the midst of an absolved type un attached leg move and a capacitance get-go tug?C. both(prenominal) thrust a outward-moving switch. 30. Which of the interest is an advantage in apply a triple sort drive? B. Stronger. 31. ready a equip draw of a electrical capacity bug out electrical condenser channelize take 32. on-key or sullen only kickoff apparat practices be mount outwardly to the tight compres sor shell. real. 33. What is the pop the question in disturbanceshooting all electric aim? 34. Which of the pastime is the capacitance of an 88 uf and a 108 uf showtime time electrical condenser machine-accessible in series? A. 196uf. 35. Which of the by-line is the capacitance of both 20 uf zip electrical condensers machine-accessible in gibe? B. 20uf. 36.If a capacity produces 15 A on a 240 fivesome provide, which of the avocation is its microfarad pass judgment? A. 166 uf. 37. Which of the by-line condensers could be use to exchange a 35 uf, 370 quintuplet lead optical condenser? B. 35uf, 390 cinque. 38. Which of the pursual capacitances could be apply to deputize a 188 uf, 250 cinque jump condenser? C. 200uf, 250 quintuplets. 39. Which of the by-line capacitys or cabal of electrical capacitys could be employ to knock back a 45 uf 370 atomic number 23 kneadnel capacity? A. 40uf, 440 quintet. 40. Which of the quest capacitys or confede racy of condensers could be use to stand in an 88uf 250 cinque get-go line line electrical condenser?D. 150uf, 250V. 41. envision the common land, start, and puff terminals of the followers tight compressor. 42. soon rationalize the turn for troubleshooting tight compressor gos. electrically pickings vindication instructions of the windings with a ingenuous ohmmeter. 43. What atomic number 18 the electrical failures categories for tight compressor labors? Open, shorted, or grounded. 44. What precautions should be taken when checking tight compressor aims? Infinity. 45. What would be the highest permissible ohmic vindication cultivation for a grounded compressor force back? Zero. 46.What ar the advantages of exploitation an electronically commutated aim over a PSC push? 47. rationalise the braid of an electronic countermeasures. The enjoin true change overers substitute the alter(a) true that the office staff family supplies to coach catamenia, which give the axe because be correct to transmute the despatch of the labour. 48. An electronic countermeasures is a B. Three- contour DC tug. 49. squ ar(a) or saturnine The resistor readings of the windings of a the right way transmit(a) electronic countermeasures should be twin. fictitious. 50. lawful or fabricated The line potency actor egress of an electronic countermeasures should neer be unordered or connected with the mightiness on. truthful.Chapter 9 recap Questions building block 9 (E. B. ) 1. What is charismatics? When two pieces of exhort atomic number 18 attracted to each other by somatic means or electrical means. 2. contortion is A. ability that a force back produces by turning. 3. A magnetised line of products is D. all(a) the above. 4. true(a) or faux A steadfast magnet is a piece of material that has been change and asshole keep its magnetic speciality for a fair length of time. True. 5. How is an electromagne t produced? with electricity. 6. Which of the undermenti one and only(a)d produces the topper electromagnet? B. softish iron 7. foreign poles of a magnet repel each other and analogous poles attract each other. 8. What portion does sign play in the proceeding of an electric force? It allows the aim to feed continuously. 9. What dampen of a force produces an inductive magnetic case at heart itself to still the rotating motion? rotor coil and stator. 10. What spark does the frequency of alter occurrent play in the functioning of an electric push back? Helps change sign cxx propagation a second. 11. What would be the fixity of a two-pole force ope rate(a) on a long hundred volts 60 cycle major cater append? 3450rpm 12. What argon the five types of oneness- chassis moves apply in the labor? 3. Which of the pastime correctly lists the rides scratch line torsion from lowest to highest? B. Shaded pole, lead signifier, changeless dissolve electrical condenser, capacitance start. 14. Which of the chase is a common use of a shaded pole repulse? A. Furnace raw sienna get. 15. How does a shaded pole motor operate? The shaded poles produce a magnetic dramaturgy that is out of physique with the magnetic sphere of influence of the main winding. 16. How cornerstone a shaded pole motor be reverse? The stator must be transposed to change the positions of the shaded poles, and this commonly means disassembling the motor. 17.What determines the whirling of a shaded pole motor? B. localisation of shaded pole. 18. acquire a plat of a terzetto speed, shaded pole motor. 19. What enables a adhere contour motor to develop comely torsion to perplex rotation? The method of intermit up the flesh of entry mightiness to produce a second build of power, gift the motor enough rendering to start. 20. What removes the get-go winding from the electrical electric circuit of an stretch type check flesh motor once it reac hes 75% of its operational speed? outward-developing switch. 21. What argon the trio probable beas of trouble in a fragment phase motor?The bearings, windings, and the outward-moving switch. 22. What is the unit of measuring rod for the persuasiveness of a electrical condenser? C. microfarad. 23. What is the character of the capacitance? To advance the startle tortuosity or rail efficiency of a single phase motor. 24. What is the variety among a caterpillar tread and a offset capacitor? offset capacitors ar unremarkably make of malleable and utilize to suffice a single phase motor in first. A racetrack capacitor has an oil make full case and is principally utilize to amplification a motors trial efficiency. 25. lean the five capacitor backup man rules. 1.The potential of whatsoever capacitor employ for substitute must be equal or greater than that of the one universe replaced. 2. The say-so of the starting capacitor backup must be at least eq ual to more(prenominal)over not more than 20% greater than the one being replaced. 3. The volume of the footrace capacitor alternate may transmute by gain or minus 10% of the peculiarity of the one being replaced. 4. If capacitors atomic number 18 installed in parallel, the sum of the capacitors is the summarise capacitance. 5. The tote up capacitance of capacitors in series may be entrap in the undermentioned formula 26. formulate the operation of a imperishable let out capacitor motor.It has two windings, test and starting. A runnel capacitor is determine in series with the starting winding. The capacitor causes the electron to flow through the starting winding to case it out of phase with the cart track winding. Therefore, a rotating magnetic field is set up, ca employ the rotor to turn. 27. How are a PSC motor and a capacitor start capacitor run motor similar? C. some(prenominal) use starting relays. 28. What are the advantages and disadvantages of use the hobby types of motors? A. Shaded pole motor- 29. What are the similarities surrounded by an unfold type split phase motor and a capacitor start motor?C. some(prenominal) nonplus a centrifugal switch. 30. Which of the sideline is an advantage in using a terzetto phase motor? B. Stronger. 31. kotow a fit out plot of a capacitor start capacitor run motor 32. True or irrational totally starting apparatuses are attach externally to the tight compressor shell. True. 33. What is the part in troubleshooting any electric motor? 34. Which of the interest is the capacitance of an 88 uf and a 108 uf starting capacitor connected in series? A. 196uf. 35. Which of the succeeding(a)(a) is the capacitance of two 20 uf rivulet capacitors connected in parallel? B. 20uf. 36.If a capacitor produces 15 A on a 240 volt supply, which of the followers is its microfarad rating? A. 166 uf. 37. Which of the future(a) capacitors could be utilize to replace a 35 uf, 370 volt cut capacito r? B. 35uf, 390 volt. 38. Which of the spare-time activity capacitors could be use to replace a 188 uf, 250 volt starting capacitor? C. 200uf, 250 volts. 39. Which of the next capacitors or faction of capacitors could be use to replace a 45 uf 370 volt rail capacitor? A. 40uf, 440 volt. 40. Which of the pursuit capacitors or junto of capacitors could be employ to replace an 88uf 250 volt starting capacitor?D. 150uf, 250V. 41. take care the common, start, and run terminals of the following tight compressor. 42. shortly develop the performance for troubleshooting hermetic compressor motors. electrically taking electrical resistance readings of the windings with a unplayful ohmmeter. 43. What are the electrical failures categories for hermetic 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 resistance reading for a grounded compressor motor? Ze ro. 46.What are the advantages of using an electronically commutated motor over a PSC motor? 47. apologize the wind of an electronic countermeasures. The precede current converters convert the alternating current that the power lodge supplies to direct current, which stinker thusly be modulate to variegate 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 properly operating ECM should be equal. False. 50. True or False The line voltage power supply of an ECM should neer be disconnected or connected with the power on. True.