维修电工(高级工)题库

11.D)ABCD2.PLCA)A3B1C2D3.(C)A140mB110mC120mD150m4.A)ABCD5.D)ABCD6.C)ABCD7.JSS-4AhC)ABCD8.A)ABCD9.A)ABCD10.(A)A1B2C3D11.JT-1B)A100B200C500D100012.B)0.2ABCD13.D)ABCD14.D)ABCD15.(D)ABCD16.486586486586B)ABCD17.()B)ABCD18.XC=10WR=10WU=10V(D)AABCD19.A)ABCD20.D)ABCD21.D)A2B4CD22.C)ABCD23.SR-8D)A2B3C4D24.B)A1B2C3D25.B)ABCD26.D)ABCD27.C)ABCD28.C)ABCD29.C)ABCD30.A)ABCD31.(D)ABCD32.A)ABCD33.RSR=S=1D)A1B0CD34.A)ABCD35.A)ABCD36.A)A1B2C3D37.(B)ABCD38.(C)ABCD39.B)ABCD40.A)ABCD41.A)ABCD42.C)ABCD43.(B)ABCD44.Y=CABCD45.B)ABCD46.B)A1B2C4.5D3.547.B)ABCD48.C)ABCD49.A)ABCD50.B)ABCDCAD51.C)ABCD52.A)ABCD53.B)mmA50B500C30D30054.A)ABCD55.800kg,C)A10B5C8D1556.A)ABCD57.D)ABCD58.B)ABCD59.D)ABCD60.B)ABCD61.B)ABCD62.MOSFETA)ABCD63.A)ABCD64.A)ABCD65.C)ABCD66.C)ABCD67.(A)ABCD68.B)ABCD69.D)ABCD70.D)AROMBRAMCD71.PLCD)mmA10B15C6D72.B)A2+KB1+KC1/(2+K)D1/(1+K)73.D)ABCD74.A)ABCD75.A)ABCD76.C)ABCD77.0.4(B)A0.5B90C200D22078.RB)ABCD79.GTRC)ABCD80.C)ABCCPUDI/O81.PLCA)ABCDC82.GTRB)PNA1B2C3D83.D)ABCD84.A)ABCD85.,(MOV)B)ABCD86.C)ABCD87.B)ABCD88.D)ABCD89.A)ABCD90.(A)ALDIBLDCORDORI91.D)ABCD92.(B)ALDIBLDCORDORI93.00111011D)A2AHB3AHC2BHD3BH94.D)ABCD95.010101011011A)A1361B3161C1136D163196.B)ABCD97.D)ABCD98.PLCA)ABCD99.59A)A00111011B10110111C10011111D10010011100.1m/sV(B)M/SAV1.5BV1.5C1.5V3D1.5V12()1.()2.()3.()4.NPN+-()5.()6.JSS-4Ah18()7.()8.()9.()10.()11.()12.()13.TTLRC()14.Y()15.()16.SR-8()17.()18.CPU()19.()20.()21.()22.()23.()24.()25.()26.()27.()28.0()29.SCR-DF-D()30.12N3e=-N/tt450.1H0.510A6A0.8V67JT-120089SBT-5X10SR-8111213141516171819MOSFET20212222~323252627.28299n=900|300/.303123233nf343536-18037VVVF38391/3404142(1+K)43.,D(D10)44.,(,45..,,,(0.3~40m)46.()47.VVVF()48.49.(CPU)50.()51.PLC()52.()()53.()54.()55.,,()56.()57.(m1=m2a1=a2)58.,,()59.7000()60.()1.200V:ULAV=2.34U2COS(1=0,ULAV=2.34200COS0=468V(2=90,ULAV=2.34200COS90=0V(1∴0V468V(12.Y112M-2PN=4KWnN=2890r/mUN=380VIN=8.2A=85.5cos=0.87TN:TN=9550(PN/nN)=9550(4/2890)=13.2((3)P1=4/=4/0.855=4.68()(2)3.,50K100V,150K150V,UabEoRo/(Ro+Rb)(Ro100EoX50/(Ro+50)150=EoX150/(Ro+150)Eo200VRo50k4.,U2100V1)a=0,ULAV=?2)a=90,ULAV=?1ULAV=2.34U2(1+COSa)/22.34X100XCOS0=234V2)ULAV=2.34U2(1+COSa)/2=117V1.:(1)(1)(1)(1)(1)2..(1)(1)(1)(1)(1)3.,1.2.4.??05.123456.7.B2010A1234567898KC04KC04KC0417091011V/fV4Vf(ROM)12150%(125%~200%)6~7()1.2~1.570%~120%100%13123451415123454016123456171SCR2PWM3LDX0ORM100ANIX1ANIX2MCN0M100LDIT0ANIY2OUTY1LDY1ORY0OUTY0LDIY2OUTT0K80LDIY1OUTY2MCRN0END