Question 1

Malfunctions due to electrical noise interference usually cause:

Accepted Answer

A)  temporary occurrences of operating errors.
B)  permanent occurrences of operating errors.
C)  temporary loss of memory.
D)  permanent loss of memory.E) A) and B)
F) A) and C)

Question 2

An addressing conflict is caused by the same address being used for two or more coil instructions in the same program.

Accepted Answer

A) True 
 B)False

Question 3

With Allen-Bradley controllers ____ software is required to develop and edit programs.

Accepted Answer

A)  RSLinx
B)  RSLogix
C)  Microsoft word
D)  LogixProE) B) and D)
F) A) and B)

Question 4

Most PLC installations require additional cooling provisions,not included in the original installation.

Accepted Answer

A) True 
 B)False

Question 5

Editing a PLC program normally refers to:

Accepted Answer

A)  replacement of an existing program.
B)  monitoring of an existing program.
C)  making changes to an existing program.
D)  all of these.E) A) and D)
F) A) and B)

Question 6

To make sure that equipment does not operate while PLC maintenance is conducted lockout and tagout devices must be in use.

Accepted Answer

A) True 
 B)False

Question 7

Where line voltage variations to the PLC are excessive,a constant voltage transformer can be used to maintain a steady voltage.

Accepted Answer

A) True 
 B)False

Question 8

Generally,output modules designed to drive inductive loads include suppression networks as part of the module circuit.

Accepted Answer

A) True 
 B)False

Question 9

With reference to the troubleshooting guide,which condition indicates no fault?

Accepted Answer

A)  Condition (a) 
B)  Condition (b) 
C)  Condition (c) 
D)  Condition (d) E) A) and D)
F) C) and D)

Question 10

The suppression circuit shown:

Accepted Answer

A)  can be used to suppress DC loads.
B)  can be used to suppress AC loads.
C)  uses a metal oxide surge suppressor.
D)  all of these.E) C) and D)
F) B) and D)

Question 11

The force instructions:

Accepted Answer

A)  will force data table bits on only.
B)  will force data table bits off only.
C)  if used indiscriminately,could cause haphazard machine operation.
D)  can be used only to force inputs.E) B) and C)
F) All of the above

Question 12

PLC output modules may incorporate fuse or electronic protection for output circuitry.

Accepted Answer

A) True 
 B)False

Question 13

The authoritative source on grounding requirements for a PLC installation is the:

Accepted Answer

A)  plant electrician.
B)  plant engineer.
C)  equipment manufacturer.
D)  National Electrical Code.E) A) and B)
F) A) and C)

Question 14

The suppression device is normally wired in series with the load device.

Accepted Answer

A) True 
 B)False

Question 15

In which of the following program modes are modifications executed immediately on entry of the instruction?

Accepted Answer

A)  Continuous test mode
B)  Single scan test mode
C)  Off-line program mode
D)  On-line program modeE) A) and C)
F) All of the above

Question 16

A diode can be connected in reverse-bias across a DC solenoid to suppress voltage spikes.

Accepted Answer

A) True 
 B)False

Question 17

When routing power and I/O signal wiring to and within a PLC enclosure you should:

Accepted Answer

A)  use the shortest possible wire runs for I/O signals.
B)  never run signal and power wiring in the same conduit.
C)  run low level signal conductors as shielded twisted pair.
D)  all of these.E) B) and C)
F) A) and D)

Question 18

Electromagnetic interference (EMI)may enter a PLC system through radiation.

Accepted Answer

A) True 
 B)False

Question 19

Preparing a PLC control process for start-up is called:

Accepted Answer

A)  commissioning
B)  troubleshooting
C)  validating
D)  installingE) A) and B)
F) None of the above

Question 20

Which of the following is not normally included in the array of status indicators found on the processor module?

Accepted Answer

A)  Memory OK
B)  Wiring OK
C)  Battery OK
D)  Power supply OKE) C) and D)
F) None of the above

Exam 13: Plc Installation Practices,editing,and Troubleshooting

The suppression device is normally wired in series with the load device.

Correct AnswerverifiedShow Answer

An addressing conflict is caused by the same address being used for two or more coil instructions in the same program.

Correct AnswerverifiedShow Answer

Which of the following is not normally included in the array of status indicators found on the processor module?

Correct AnswerverifiedShow Answer

Preparing a PLC control process for start-up is called:

Correct AnswerverifiedShow Answer

Editing a PLC program normally refers to:

Correct AnswerverifiedShow Answer

In which of the following program modes are modifications executed immediately on entry of the instruction?

Correct AnswerverifiedShow Answer

The authoritative source on grounding requirements for a PLC installation is the:

Correct AnswerverifiedShow Answer

Where line voltage variations to the PLC are excessive,a constant voltage transformer can be used to maintain a steady voltage.

Correct AnswerverifiedShow Answer

Electromagnetic interference (EMI)may enter a PLC system through radiation.

Correct AnswerverifiedShow Answer

Generally,output modules designed to drive inductive loads include suppression networks as part of the module circuit.

Correct AnswerverifiedShow Answer

Malfunctions due to electrical noise interference usually cause:

Correct AnswerverifiedShow Answer

A diode can be connected in reverse-bias across a DC solenoid to suppress voltage spikes.

Correct AnswerverifiedShow Answer

With reference to the troubleshooting guide,which condition indicates no fault?

Correct AnswerverifiedShow Answer

The suppression circuit shown:

Correct AnswerverifiedShow Answer

The force instructions:

Correct AnswerverifiedShow Answer

To make sure that equipment does not operate while PLC maintenance is conducted lockout and tagout devices must be in use.

Correct AnswerverifiedShow Answer

PLC output modules may incorporate fuse or electronic protection for output circuitry.

Correct AnswerverifiedShow Answer

Most PLC installations require additional cooling provisions,not included in the original installation.

Correct AnswerverifiedShow Answer

With Allen-Bradley controllers ____ software is required to develop and edit programs.

Correct AnswerverifiedShow Answer

When routing power and I/O signal wiring to and within a PLC enclosure you should:

Correct AnswerverifiedShow Answer

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