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PLC Midterm Review

Authored by Dan S

Specialty

Professional Development

Used 21+ times

PLC Midterm Review
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Output field devices include all of the following except what?

Lights

Push-buttons

Horns

Valves

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Discrete signals are signals that are ...

off/on

continuous

4-20mA

not used in PLCs

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Optical isolators in the PLC I/O modules are used to...

read the internal operating temperature of the PLC

step up the voltage

power the CPU modules

isolate field device and processor signal currents

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Analog input modules convert an analog signal into a usable digital value for the processor using what?

ASCII code

Analog to digital converter circuit (A/D)

Digital to analog converter circuit (D/A)

Stepper modules

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Volatile memory is ...

easily altered and lost if power is removed

sold on Wall Street

unalterable and will retain if power is removed

not used in PLCs

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the type of memory where the PLC program lives in?

ROM

RAM

GOAT

nonvolatile

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify which card type, slot number, and terminal point for the following address based address: O:5/12

Input card, slot 5, terminal 12

Input card, slot 12, terminal 5

Output card, slot 5, terminal 12

Output card, slot 12, terminal 5

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