Test

Question 1

RTU Configuration or program is stored in

Answer 1

EPROM

Question 2

Which part of message format provides the message security checks and a means of denoting the end of the message

Answer 2

message termination

Question 3

exception reporting means

Answer 3

A technique to reduce the unnecessary transfer of data is to use some for of exception reporting

Question 4

polling is performed when

Answer 4

The master requires information

Question 5

in realflo Gas flow calculation case, when you decrease the orifice diameter you will see the flow decrease

Answer 5

True

Question 6

Not one of the main categories of pipeline failure

Answer 6

Operation within design limit

Question 7

in Gas flow calculation when you decrease the statics pressure you will see the gas flow will increase

Answer 7

False

Question 8

In Gas flow calculation case, when you decrease the temperature you will see the gas flow will decrease

Answer 8

False

Question 9

Which part of the message format provides the signals to synchronize the receiver and trasmitter

Answer 9

Message establishment

Question 10

Not a computer based leak detection monitoring system

Answer 10

line flow balance

Question 11

Most basic method of leak detection

Answer 11

walking or driving the pipeline right of way to look for evidence of discolouration of vegetation near the line

Question 12

A single push button start/stop station with NO contacts, when pressed once the motor starts, when pushed again it does not stop, what is the problem?

Answer 12

Push button input forced on

Question 13

Point-to multipoint communication means devices designated as slaves exchange data over a communication link through the master station

Answer 13

True

Question 14

American Gas Association Directive AGA-8 is used for

Answer 14

gas compressibility

Question 15

Why do pigs require tracking

Answer 15

because they may be monitor remotely using computer

Question 16

Failure to detect leaks can be broken into____ loss categories

Answer 16

loss of life & property
loss of product and downtime to fix pipeline
environmental impact

Question 17

_______ is the ability to detect errors in the original information transmitted and types of noise on the communication channel

Answer 17

security

Question 18

SCADA systems can reliably monitor and control a process on with an operator’s supervision

Answer 18

False

Question 19

Mass flow calculation means a given substance passes through a given surface per unit of time

Answer 19

True

Question 20

What form of power is most commonly used as a supply source to power internal components of SCADAPack32?

Answer 20

Direct Current

Question 21

Operations and supervisory personnel can communicate with SCADA systems via radios, telephone line modems, networks, the internet, satellite links, and/or cellular telephone systems

Answer 21

True

Question 22

Early SCADA system has easier programming than a PLC system, but poorer remote communications capability

Answer 22

False

Question 23

In the reflag Gas flow calculation case, when you increase the differential pressure you will see the gas flow will decrease

Answer 23

False

Question 24

Polling, a commonly used SCADA communication method in which master is in control and sends a request to each slave to send its data and the slave responds

Answer 24

True

Question 25

A signal that represents only On/Off

Answer 25

Discrete signal

Question 26

A method used for loading instruction sets in an HMI

Answer 26

drag and drop

Question 27

A combination of a voltage source, switch, and voltage-sensing device that detects either a voltage or no voltage to represent a 0 or 1

Answer 27

status input

Question 28

American Standard code for Information interchange, which represents text in computers and communications equipment

Answer 28

ascii

Question 29

Information that is input or output as a series of time based pulses, which result in a binary string of 0s and 1s

Answer 29

digital

Question 30

A single input wire for each signal, the source is HI side and all the LO side are common and connected to the ground

Answer 30

single-ended inputs

Question 31

A switch that will send either a 0 or 1 to the field device to close or open the circuit

Answer 31

status output

Question 32

the location in the RTU/PLC that allows data to be found

Answer 32

address

Question 33

A continuous measurable signal sent from a controller or host to a field device

Answer 33

analog output

Question 34

An open control communications protocol that uses client/server methodology

Answer 34

modbus