Theory

Question 1

According to RS 485 Standard, what is max length cable segment?

Answer 1

1200m

Question 2

RS-422 - max segment cable length?

Answer 2

1200m

Question 3

Best describes a synchronous serial communication system?

Answer 3

Uses a long string of bts to synchronize receiver before data is detected

Question 4

How many masters/drivers on RS232 segment?

Answer 4

1

Question 5

How many receivers/slaves on 4-wire RS 485 segment?

Answer 5

31

Question 6

How many receivers/slaves on 2-wire RS 485 segment?

Answer 6

32

Question 7

How many receivers/slaves on 4-wire RS 422 segment?

Answer 7

10

Question 8

How many masters/drivers on 4-wire RS 422 segment?

Answer 8

1

Question 9

How many nodes on 2-wire RS 485

Answer 9

32

Question 10

Max cable length for RS232 19.2kBaud system utilizing copper conductor

Answer 10

25

Question 11

How many masters/drivers on 4-wire RS 485 segment?

Answer 11

1

Question 12

How many receiver/slaves on an RS 232 segment?

Answer 12

1

Question 13

RS 232

Answer 13

unbalanced

Question 14

RS 485

Answer 14

balanced

Question 15

RS 422

Answer 15

balanced

Question 16

transmission mode for RS 232

Answer 16

Full Duplex

Question 17

transmission mode for 4-wire RS 485

Answer 17

Full Duplex

Question 18

transmission mode for 4-wire RS 422

Answer 18

Full Duplex

Question 19

transmission mode for 2-wire RS 485

Answer 19

Half Duplex

Question 20

approximate resistance of End of The Line Resistor

Answer 20

100-120 Ohm

Question 21

RS 232

Answer 21

Tx carries data from DTE to the corresponding pin on DCE
CTS is output from DCE
Rx carries data from DTE to the corresponding pin on DTE
RX is an output from DTE

Question 22

Max Baud rate for RS 485

Answer 22

10 Mbps

Question 23

most accurate description of a cable used to connect a DTE to DTE

Answer 23

Null-Modern cable

Question 24

most accurate description of a cable used to connect a DTE to DCE

Answer 24

Straight through cable

Question 25

RS 485 utilize a ----- transmission system which requires ---- per signal

Answer 25

balanced 2 conductors

Question 26

RS serial communication standard use a ---- voltage to define a logic 0 state and --- Voltage to define 1 state for DATA LINES

Answer 26

+5 - 5

Question 27

RS serial communication standard use a ---- voltage to define a logic 0 state and --- Voltage to define 1 state for CONTROL LINES

Answer 27

+25 -25

Question 28

Matching DB9 connector NULL MODEM, DTE to DTE with hardware hand shaking

Answer 28

GND - GND DCD - DCD RTS - CTS Rx - Tx DTR - DSR Tx - Rx CTS - RTS DSR - DTR

Question 29

Matching DB9 PIN

Answer 29

Pin 1 - DCD - DATA CARRIER DETECT PIN 2- Rx - RECEIVE PIN 3- Tx - TRANSMIT PIN 4 - DTR - DATA TERMINAL READY PIN 5 - GND - GROUND PIN 6 - DSR - DATA SET READY PIN 7 - RTS - READY TO SEND PIN 8 - CTS - CLEAR TO SEND PIN 9 - RI - RING INDICATOR

Question 30

Place holder for manually marked network diagram

Answer 30

Physical sheet

Question 31

Baud Rate

Answer 31

The rate at which signal changes

Question 32

communication mode that used for simultaneous bi-directional communication

Answer 32

Full Duplex

Question 33

DCE

Answer 33

Data Communication Equipment

Question 34

DTE

Answer 34

Data Terminal Equipment

Question 35

Which factor affect transmission speed

Answer 35

error rate band width signal to noise ratio data throughput

Question 36

What was the 1st DCS manufacturer?

Answer 36

Yokohama Centum

Question 37

which year?

Answer 37

1975

Question 38

how many bits in a Nibble?

Answer 38

4

Question 39

How many bits in an Octet?

Answer 39

8

Question 40

How many bits in a Byte

Answer 40

8

Question 41

How many bits in a word

Answer 41

32

Question 42

how many bits in a single deterger?

Answer 42

8

Question 43

Greater than 500 IP & OP device

Answer 43

DCS

Question 44

Greater than 100 less than 500 IP & OP devices

Answer 44

PLC

Question 45

Lees than 100 IP & OP

Answer 45

SCADA

Question 46

Control Large & Local geographic areas

Answer 46

DCS

Question 47

Responsible for data communications collection

Answer 47

MTU

Question 48

Isolated skid automation

Answer 48

PLC

Question 49

Control Far & Large geographic areas

Answer 49

SCADA

Question 50

Regulatory control excellence

Answer 50

DCS

Question 51

Discrete Control superiority

Answer 51

PLC

Question 52

5 IEC-61131-3 programming languages

Answer 52

Instruction List, Function Block, Ladder Logic, Sequential Function Chart, Structure Text

Question 53

6 largest current day DCS Manufacturer

Answer 53

Emerson, Rockwell, Yokohama, Honey Well, Schneider Electric, ABB

Question 54

6 current day DCS respectives

Answer 54

Delta V, Plant Pax, 800xA, PCS 7, Eco Structure