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MacOS 8.1

Win98

DOS

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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 00 47 47 36 41 30 31 20 | 49 66 20 61 20 63 61 72 |.GG6A01 |If a car|
|00000010| 62 6f 6e 20 72 65 73 69 | 73 74 6f 72 27 73 20 74 |bon resi|stor's t|
|00000020| 65 6d 70 65 72 61 74 75 | 72 65 20 69 73 20 69 6e |emperatu|re is in|
|00000030| 63 72 65 61 73 65 64 2c | 20 77 68 61 74 20 77 69 |creased,| what wi|
|00000040| 6c 6c 20 68 61 70 70 65 | 6e 12 74 6f 20 74 68 65 |ll happe|n.to the|
|00000050| 20 72 65 73 69 73 74 61 | 6e 63 65 3f 00 3a 41 2e | resista|nce?.:A.|
|00000060| 20 49 74 20 77 69 6c 6c | 20 69 6e 63 72 65 61 73 | It will| increas|
|00000070| 65 20 62 79 20 32 30 25 | 20 66 6f 72 20 65 76 65 |e by 20%| for eve|
|00000080| 72 79 20 31 30 20 64 65 | 67 72 65 65 73 20 63 65 |ry 10 de|grees ce|
|00000090| 6e 74 69 67 72 61 64 65 | 00 18 42 2e 20 49 74 20 |ntigrade|..B. It |
|000000a0| 77 69 6c 6c 20 73 74 61 | 79 20 74 68 65 20 73 61 |will sta|y the sa|
|000000b0| 6d 65 00 39 43 2e 20 49 | 74 20 77 69 6c 6c 20 63 |me.9C. I|t will c|
|000000c0| 68 61 6e 67 65 20 64 65 | 70 65 6e 64 69 6e 67 20 |hange de|pending |
|000000d0| 6f 6e 20 74 68 65 20 72 | 65 73 69 73 74 6f 72 27 |on the r|esistor'|
|000000e0| 73 20 74 65 6d 70 65 72 | 61 74 75 72 65 15 20 20 |s temper|ature.  |
|000000f0| 20 63 6f 65 66 66 69 63 | 69 65 6e 74 20 72 61 74 | coeffic|ient rat|
|00000100| 69 6e 67 00 20 44 2e 20 | 49 74 20 77 69 6c 6c 20 |ing. D. |It will |
|00000110| 62 65 63 6f 6d 65 20 74 | 69 6d 65 20 64 65 70 65 |become t|ime depe|
|00000120| 6e 64 65 6e 74 00 08 61 | 6e 73 77 65 72 20 43 00 |ndent..a|nswer C.|
|00000130| 46 47 36 41 30 32 20 57 | 68 61 74 20 74 79 70 65 |FG6A02 W|hat type|
|00000140| 20 6f 66 20 63 61 70 61 | 63 69 74 6f 72 20 69 73 | of capa|citor is|
|00000150| 20 6f 66 74 65 6e 20 75 | 73 65 64 20 69 6e 20 70 | often u|sed in p|
|00000160| 6f 77 65 72 2d 73 75 70 | 70 6c 79 20 63 69 72 63 |ower-sup|ply circ|
|00000170| 75 69 74 73 20 74 6f 18 | 66 69 6c 74 65 72 20 74 |uits to.|filter t|
|00000180| 68 65 20 72 65 63 74 69 | 66 69 65 64 20 41 43 3f |he recti|fied AC?|
|00000190| 00 0f 41 2e 20 44 69 73 | 63 20 63 65 72 61 6d 69 |..A. Dis|c cerami|
|000001a0| 63 00 12 42 2e 20 56 61 | 63 75 75 6d 20 76 61 72 |c..B. Va|cuum var|
|000001b0| 69 61 62 6c 65 00 07 43 | 2e 20 4d 69 63 61 00 0f |iable..C|. Mica..|
|000001c0| 44 2e 20 45 6c 65 63 74 | 72 6f 6c 79 74 69 63 00 |D. Elect|rolytic.|
|000001d0| 08 61 6e 73 77 65 72 20 | 44 00 47 47 36 41 30 33 |.answer |D.GG6A03|
|000001e0| 20 57 68 61 74 20 74 79 | 70 65 20 6f 66 20 63 61 | What ty|pe of ca|
|000001f0| 70 61 63 69 74 6f 72 20 | 69 73 20 75 73 65 64 20 |pacitor |is used |
|00000200| 69 6e 20 70 6f 77 65 72 | 2d 73 75 70 70 6c 79 20 |in power|-supply |
|00000210| 63 69 72 63 75 69 74 73 | 20 74 6f 20 66 69 6c 74 |circuits| to filt|
|00000220| 65 72 44 74 72 61 6e 73 | 69 65 6e 74 20 76 6f 6c |erDtrans|ient vol|
|00000230| 74 61 67 65 20 73 70 69 | 6b 65 73 20 61 63 72 6f |tage spi|kes acro|
|00000240| 73 73 20 74 68 65 20 74 | 72 61 6e 73 66 6f 72 6d |ss the t|ransform|
|00000250| 65 72 27 73 20 73 65 63 | 6f 6e 64 61 72 79 20 77 |er's sec|ondary w|
|00000260| 69 6e 64 69 6e 67 3f 00 | 0d 41 2e 20 48 69 67 68 |inding?.|.A. High|
|00000270| 2d 76 61 6c 75 65 00 0a | 42 2e 20 54 72 69 6d 6d |-value..|B. Trimm|
|00000280| 65 72 00 12 43 2e 20 56 | 61 63 75 75 6d 20 76 61 |er..C. V|acuum va|
|00000290| 72 69 61 62 6c 65 00 0d | 44 2e 20 53 75 70 70 72 |riable..|D. Suppr|
|000002a0| 65 73 73 6f 72 00 08 61 | 6e 73 77 65 72 20 44 00 |essor..a|nswer D.|
|000002b0| 3f 47 36 41 30 34 20 57 | 68 65 72 65 20 69 73 20 |?G6A04 W|here is |
|000002c0| 74 68 65 20 73 6f 75 72 | 63 65 20 6f 66 20 65 6e |the sour|ce of en|
|000002d0| 65 72 67 79 20 63 6f 6e | 6e 65 63 74 65 64 20 69 |ergy con|nected i|
|000002e0| 6e 20 61 20 74 72 61 6e | 73 66 6f 72 6d 65 72 3f |n a tran|sformer?|
|000002f0| 00 1b 41 2e 20 54 6f 20 | 74 68 65 20 73 65 63 6f |..A. To |the seco|
|00000300| 6e 64 61 72 79 20 77 69 | 6e 64 69 6e 67 00 19 42 |ndary wi|nding..B|
|00000310| 2e 20 54 6f 20 74 68 65 | 20 70 72 69 6d 61 72 79 |. To the| primary|
|00000320| 20 77 69 6e 64 69 6e 67 | 00 0e 43 2e 20 54 6f 20 | winding|..C. To |
|00000330| 74 68 65 20 63 6f 72 65 | 00 10 44 2e 20 54 6f 20 |the core|..D. To |
|00000340| 74 68 65 20 70 6c 61 74 | 65 73 00 08 61 6e 73 77 |the plat|es..answ|
|00000350| 65 72 20 42 00 47 47 36 | 41 30 35 20 49 66 20 6e |er B.GG6|A05 If n|
|00000360| 6f 20 6c 6f 61 64 20 69 | 73 20 61 74 74 61 63 68 |o load i|s attach|
|00000370| 65 64 20 74 6f 20 74 68 | 65 20 73 65 63 6f 6e 64 |ed to th|e second|
|00000380| 61 72 79 20 77 69 6e 64 | 69 6e 67 20 6f 66 20 61 |ary wind|ing of a|
|00000390| 20 74 72 61 6e 73 66 6f | 72 6d 65 72 2c 2e 77 68 | transfo|rmer,.wh|
|000003a0| 61 74 20 69 73 20 63 75 | 72 72 65 6e 74 20 69 6e |at is cu|rrent in|
|000003b0| 20 74 68 65 20 70 72 69 | 6d 61 72 79 20 77 69 6e | the pri|mary win|
|000003c0| 64 69 6e 67 20 63 61 6c | 6c 65 64 3f 00 16 41 2e |ding cal|led?..A.|
|000003d0| 20 4d 61 67 6e 65 74 69 | 7a 69 6e 67 20 63 75 72 | Magneti|zing cur|
|000003e0| 72 65 6e 74 00 11 42 2e | 20 44 69 72 65 63 74 20 |rent..B.| Direct |
|000003f0| 63 75 72 72 65 6e 74 00 | 15 43 2e 20 45 78 63 69 |current.|.C. Exci|
|00000400| 74 61 74 69 6f 6e 20 63 | 75 72 72 65 6e 74 00 16 |tation c|urrent..|
|00000410| 44 2e 20 53 74 61 62 69 | 6c 69 7a 69 6e 67 20 63 |D. Stabi|lizing c|
|00000420| 75 72 72 65 6e 74 00 08 | 61 6e 73 77 65 72 20 41 |urrent..|answer A|
|00000430| 00 3f 47 36 41 30 36 20 | 57 68 61 74 20 69 73 20 |.?G6A06 |What is |
|00000440| 74 68 65 20 70 65 61 6b | 2d 69 6e 76 65 72 73 65 |the peak|-inverse|
|00000450| 2d 76 6f 6c 74 61 67 65 | 20 72 61 74 69 6e 67 20 |-voltage| rating |
|00000460| 6f 66 20 61 20 70 6f 77 | 65 72 2d 73 75 70 70 6c |of a pow|er-suppl|
|00000470| 79 0a 72 65 63 74 69 66 | 69 65 72 3f 00 3d 41 2e |y.rectif|ier?.=A.|
|00000480| 20 54 68 65 20 6d 61 78 | 69 6d 75 6d 20 74 72 61 | The max|imum tra|
|00000490| 6e 73 69 65 6e 74 20 76 | 6f 6c 74 61 67 65 20 74 |nsient v|oltage t|
|000004a0| 68 65 20 72 65 63 74 69 | 66 69 65 72 20 77 69 6c |he recti|fier wil|
|000004b0| 6c 20 68 61 6e 64 6c 65 | 20 69 6e 1b 20 20 20 74 |l handle| in.   t|
|000004c0| 68 65 20 63 6f 6e 64 75 | 63 74 69 6e 67 20 64 69 |he condu|cting di|
|000004d0| 72 65 63 74 69 6f 6e 00 | 1d 42 2e 20 31 2e 34 20 |rection.|.B. 1.4 |
|000004e0| 74 69 6d 65 73 20 74 68 | 65 20 41 43 20 66 72 65 |times th|e AC fre|
|000004f0| 71 75 65 6e 63 79 00 37 | 43 2e 20 54 68 65 20 6d |quency.7|C. The m|
|00000500| 61 78 69 6d 75 6d 20 76 | 6f 6c 74 61 67 65 20 74 |aximum v|oltage t|
|00000510| 68 65 20 72 65 63 74 69 | 66 69 65 72 20 77 69 6c |he recti|fier wil|
|00000520| 6c 20 68 61 6e 64 6c 65 | 20 69 6e 20 74 68 65 1b |l handle| in the.|
|00000530| 20 20 20 6e 6f 6e 2d 63 | 6f 6e 64 75 63 74 69 6e |   non-c|onductin|
|00000540| 67 20 64 69 72 65 63 74 | 69 6f 6e 00 1d 44 2e 20 |g direct|ion..D. |
|00000550| 32 2e 38 20 74 69 6d 65 | 73 20 74 68 65 20 41 43 |2.8 time|s the AC|
|00000560| 20 66 72 65 71 75 65 6e | 63 79 00 08 61 6e 73 77 | frequen|cy..answ|
|00000570| 65 72 20 43 00 42 47 36 | 41 30 37 20 57 68 61 74 |er C.BG6|A07 What|
|00000580| 20 61 72 65 20 74 68 65 | 20 74 77 6f 20 6d 61 6a | are the| two maj|
|00000590| 6f 72 20 72 61 74 69 6e | 67 73 20 74 68 61 74 20 |or ratin|gs that |
|000005a0| 6d 75 73 74 20 6e 6f 74 | 20 62 65 20 65 78 63 65 |must not| be exce|
|000005b0| 65 64 65 64 20 66 6f 72 | 37 73 69 6c 69 63 6f 6e |eded for|7silicon|
|000005c0| 2d 64 69 6f 64 65 20 72 | 65 63 74 69 66 69 65 72 |-diode r|ectifier|
|000005d0| 73 20 75 73 65 64 20 69 | 6e 20 70 6f 77 65 72 2d |s used i|n power-|
|000005e0| 73 75 70 70 6c 79 20 63 | 69 72 63 75 69 74 73 3f |supply c|ircuits?|
|000005f0| 00 30 41 2e 20 50 65 61 | 6b 20 69 6e 76 65 72 73 |.0A. Pea|k invers|
|00000600| 65 20 76 6f 6c 74 61 67 | 65 3b 20 61 76 65 72 61 |e voltag|e; avera|
|00000610| 67 65 20 66 6f 72 77 61 | 72 64 20 63 75 72 72 65 |ge forwa|rd curre|
|00000620| 6e 74 00 21 42 2e 20 41 | 76 65 72 61 67 65 20 70 |nt.!B. A|verage p|
|00000630| 6f 77 65 72 3b 20 61 76 | 65 72 61 67 65 20 76 6f |ower; av|erage vo|
|00000640| 6c 74 61 67 65 00 2a 43 | 2e 20 43 61 70 61 63 69 |ltage.*C|. Capaci|
|00000650| 74 69 76 65 20 72 65 61 | 63 74 61 6e 63 65 3b 20 |tive rea|ctance; |
|00000660| 61 76 61 6c 61 6e 63 68 | 65 20 76 6f 6c 74 61 67 |avalanch|e voltag|
|00000670| 65 00 24 44 2e 20 50 65 | 61 6b 20 6c 6f 61 64 20 |e.$D. Pe|ak load |
|00000680| 69 6d 70 65 64 61 6e 63 | 65 3b 20 70 65 61 6b 20 |impedanc|e; peak |
|00000690| 76 6f 6c 74 61 67 65 00 | 08 61 6e 73 77 65 72 20 |voltage.|.answer |
|000006a0| 41 00 43 47 36 41 30 38 | 20 57 68 79 20 73 68 6f |A.CG6A08| Why sho|
|000006b0| 75 6c 64 20 61 20 72 65 | 73 69 73 74 6f 72 20 61 |uld a re|sistor a|
|000006c0| 6e 64 20 63 61 70 61 63 | 69 74 6f 72 20 62 65 20 |nd capac|itor be |
|000006d0| 77 69 72 65 64 20 69 6e | 20 70 61 72 61 6c 6c 65 |wired in| paralle|
|000006e0| 6c 20 77 69 74 68 1e 70 | 6f 77 65 72 2d 73 75 70 |l with.p|ower-sup|
|000006f0| 70 6c 79 20 72 65 63 74 | 69 66 69 65 72 20 64 69 |ply rect|ifier di|
|00000700| 6f 64 65 73 3f 00 40 41 | 2e 20 54 6f 20 65 71 75 |odes?.@A|. To equ|
|00000710| 61 6c 69 7a 65 20 76 6f | 6c 74 61 67 65 20 64 72 |alize vo|ltage dr|
|00000720| 6f 70 73 20 61 6e 64 20 | 67 75 61 72 64 20 61 67 |ops and |guard ag|
|00000730| 61 69 6e 73 74 20 74 72 | 61 6e 73 69 65 6e 74 20 |ainst tr|ansient |
|00000740| 76 6f 6c 74 61 67 65 09 | 20 20 20 73 70 69 6b 65 |voltage.|   spike|
|00000750| 73 00 3d 42 2e 20 54 6f | 20 65 6e 73 75 72 65 20 |s.=B. To| ensure |
|00000760| 74 68 61 74 20 74 68 65 | 20 63 75 72 72 65 6e 74 |that the| current|
|00000770| 20 74 68 72 6f 75 67 68 | 20 65 61 63 68 20 64 69 | through| each di|
|00000780| 6f 64 65 20 69 73 20 61 | 62 6f 75 74 20 74 68 65 |ode is a|bout the|
|00000790| 07 20 20 20 73 61 6d 65 | 00 20 43 2e 20 54 6f 20 |.   same|. C. To |
|000007a0| 73 6d 6f 6f 74 68 20 74 | 68 65 20 6f 75 74 70 75 |smooth t|he outpu|
|000007b0| 74 20 77 61 76 65 66 6f | 72 6d 00 21 44 2e 20 54 |t wavefo|rm.!D. T|
|000007c0| 6f 20 64 65 63 72 65 61 | 73 65 20 74 68 65 20 6f |o decrea|se the o|
|000007d0| 75 74 70 75 74 20 76 6f | 6c 74 61 67 65 00 08 61 |utput vo|ltage..a|
|000007e0| 6e 73 77 65 72 20 41 00 | 46 47 36 41 30 39 20 57 |nswer A.|FG6A09 W|
|000007f0| 68 61 74 20 69 73 20 74 | 68 65 20 6f 75 74 70 75 |hat is t|he outpu|
|00000800| 74 20 77 61 76 65 66 6f | 72 6d 20 6f 66 20 61 6e |t wavefo|rm of an|
|00000810| 20 75 6e 66 69 6c 74 65 | 72 65 64 20 66 75 6c 6c | unfilte|red full|
|00000820| 2d 77 61 76 65 20 72 65 | 63 74 69 66 69 65 72 1e |-wave re|ctifier.|
|00000830| 63 6f 6e 6e 65 63 74 65 | 64 20 74 6f 20 61 20 72 |connecte|d to a r|
|00000840| 65 73 69 73 74 69 76 65 | 20 6c 6f 61 64 3f 00 3c |esistive| load?.<|
|00000850| 41 2e 20 41 20 73 65 72 | 69 65 73 20 6f 66 20 70 |A. A ser|ies of p|
|00000860| 75 6c 73 65 73 20 61 74 | 20 74 77 69 63 65 20 74 |ulses at| twice t|
|00000870| 68 65 20 66 72 65 71 75 | 65 6e 63 79 20 6f 66 20 |he frequ|ency of |
|00000880| 74 68 65 20 41 43 20 69 | 6e 70 75 74 00 3b 42 2e |the AC i|nput.;B.|
|00000890| 20 41 20 73 65 72 69 65 | 73 20 6f 66 20 70 75 6c | A serie|s of pul|
|000008a0| 73 65 73 20 61 74 20 74 | 68 65 20 73 61 6d 65 20 |ses at t|he same |
|000008b0| 66 72 65 71 75 65 6e 63 | 79 20 61 73 20 74 68 65 |frequenc|y as the|
|000008c0| 20 41 43 20 69 6e 70 75 | 74 00 34 43 2e 20 41 20 | AC inpu|t.4C. A |
|000008d0| 73 69 6e 65 20 77 61 76 | 65 20 61 74 20 68 61 6c |sine wav|e at hal|
|000008e0| 66 20 74 68 65 20 66 72 | 65 71 75 65 6e 63 79 20 |f the fr|equency |
|000008f0| 6f 66 20 74 68 65 20 41 | 43 20 69 6e 70 75 74 00 |of the A|C input.|
|00000900| 16 44 2e 20 41 20 73 74 | 65 61 64 79 20 44 43 20 |.D. A st|eady DC |
|00000910| 76 6f 6c 74 61 67 65 00 | 08 61 6e 73 77 65 72 20 |voltage.|.answer |
|00000920| 41 00 44 47 36 41 31 30 | 20 41 20 68 61 6c 66 2d |A.DG6A10| A half-|
|00000930| 77 61 76 65 20 72 65 63 | 74 69 66 69 65 72 20 63 |wave rec|tifier c|
|00000940| 6f 6e 64 75 63 74 73 20 | 64 75 72 69 6e 67 20 68 |onducts |during h|
|00000950| 6f 77 20 6d 61 6e 79 20 | 64 65 67 72 65 65 73 20 |ow many |degrees |
|00000960| 6f 66 20 65 61 63 68 06 | 63 79 63 6c 65 3f 00 0d |of each.|cycle?..|
|00000970| 41 2e 20 39 30 20 64 65 | 67 72 65 65 73 00 0e 42 |A. 90 de|grees..B|
|00000980| 2e 20 31 38 30 20 64 65 | 67 72 65 65 73 00 0e 43 |. 180 de|grees..C|
|00000990| 2e 20 32 37 30 20 64 65 | 67 72 65 65 73 00 0e 44 |. 270 de|grees..D|
|000009a0| 2e 20 33 36 30 20 64 65 | 67 72 65 65 73 00 08 61 |. 360 de|grees..a|
|000009b0| 6e 73 77 65 72 20 42 00 | 44 47 36 41 31 31 20 41 |nswer B.|DG6A11 A|
|000009c0| 20 66 75 6c 6c 2d 77 61 | 76 65 20 72 65 63 74 69 | full-wa|ve recti|
|000009d0| 66 69 65 72 20 63 6f 6e | 64 75 63 74 73 20 64 75 |fier con|ducts du|
|000009e0| 72 69 6e 67 20 68 6f 77 | 20 6d 61 6e 79 20 64 65 |ring how| many de|
|000009f0| 67 72 65 65 73 20 6f 66 | 20 65 61 63 68 06 63 79 |grees of| each.cy|
|00000a00| 63 6c 65 3f 00 0d 41 2e | 20 39 30 20 64 65 67 72 |cle?..A.| 90 degr|
|00000a10| 65 65 73 00 0e 42 2e 20 | 31 38 30 20 64 65 67 72 |ees..B. |180 degr|
|00000a20| 65 65 73 00 0e 43 2e 20 | 32 37 30 20 64 65 67 72 |ees..C. |270 degr|
|00000a30| 65 65 73 00 0e 44 2e 20 | 33 36 30 20 64 65 67 72 |ees..D. |360 degr|
|00000a40| 65 65 73 00 08 61 6e 73 | 77 65 72 20 44 00 72 65 |ees..ans|wer D.re|
|00000a50| 65 73 00 0f 43 2e 20 20 | 32 37 30 20 64 65 67 72 |es..C.  |270 degr|
|00000a60| 65 65 73 00 0f 44 2e 20 | 20 33 36 30 20 64 65 67 |ees..D. | 360 deg|
|00000a70| 72 65 65 73 00 08 61 6e | 73 77 65 72 20 44 00 65 |rees..an|swer D.e|
|00000a80| 72 20 44 00             |                         |r D.    |        |
+--------+-------------------------+-------------------------+--------+--------+