2020年高级化工仪表维修工理论知识考试题库及答?完整? - 百度文库

__________ABβC D/A תDȫ 123Ӧ( D)

ABѧĵCƳDȫ 124ֳߵı( A)

AϢԶϵͳײֳ豸BϢĹͨ·Cӿ

ӵ豸ֳ豸ĵͨDʹļ

125ֳߵĿϵͳΪֳ߿ϵͳдΪ(C )

A DCS B ABS C FCS D ACS 126вFCS ص( D)

ABɲCֳӦDϵͳṹļ

127вFCS ϵṹص( D) ABԺͷɢCD

128FCSDCS ( A)ԪֳDZȡ֮DCS վĹ

ܻΪ㣬ܿɢطֳϵDZʵֳ׵ķɢơ

AI/O BͨCDPLC

129ʩάУFCS ܽϵͳ̳ɱڶ棬

һ ?(B )

AӲͶB̬CάDװ 130ֳߵĻ(D )

A˫BCͬDֳ豸 131ֳͨŵĻʽ( B) ABCкͲD 132ϵ豸( A) AźŵBӴCD 133ݲ(D ) ABӴCD

134ҵϵУԲͬӦҪǵУҪ

IJҪѡͬ磬Ҫ( C) ABCDȶ

135ֳߵԶؼϢϵͳн϶ŵ㣬һ ?( D)

Aֻͨ磬ʵ豸״̬ϡϢBʽ

ԡԡɼCϵͳɿԸߡάԺDϵͳ̳

ԴΧϵͳʺϣԴģϵͳʺ

136HART ЭͨУҪıͿϢ( D)͡ A 0--5 V B1--5V C 0--10mA D 4--20mA 137HART ͨŲõ( A)ͨŷʽ Aȫ˫B˫CD

138HART ЭοISO/OSI(ϵͳģ)ļģͽ

һ?( C)

AB·CDӦò

139HARTͨУģźϵһƵźţƵźŲBellzoz

ʱ׼źŵĴͲ趨Ϊ(D )

A 9600bps B 120bps C 12000bps D 1200bps

140HARTͨУģźϵһƵźţƵźŲBe11202 ʱ׼źŷֵΪ( C)

A 0125A B 1A C 05A D 025A

141HART ͨУͨŽʵѡӴ볤̶ͨ( )Ϊ

ʱɴﵽ( A)m

A˫ͬ£1500 B˫ͬ£150Cˣ1500 Dˣ150

142HART ͨУͨŽʵѡӴ볤̶·迹ӦΪ( A)

A 230--1100 B 220 C 110 D 10

143HART ӦòΪHART ʵHART ָΪ࣬ һ?(D )

AͨBͨCרD

144HART ͨŲҪD/A תBell202 Modem 丽·ʵ֡

D/A ֵ( A)

Aźת4--20mA B4--20mA תźC

źת1--5V ѹD1--5V ѹתź 145HART Modem Ҫʱӣ73728MHz ľͨ

74LS161 4 Ƶõ( B)Ƶʱӡ A8B16C64D256

146HART ͨŹУڳʼ֮ͨŲ־һֱ( B)״̬¡

A׼B׼CжDȴ

147HART ֲʹʱܼܱHELP ָABORT

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