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WorksheetsField Devices and PLC Program Instructions Quiz
Total questions: 29
Worksheet time: 22mins
To differentiate between input devices and input instructions, what term is used to refer to the physical devices?
Field
Logic
Program
Output
What are the program instructions mentioned for examining contacts in the PLC program?
"Examine if open" and "examine if closed"
"Check if on" and "check if off"
"Test if active" and "test if inactive"
"Read if true" and "read if false"
When using a normally closed relay, what does a normally closed contact provide?
Electrical path
Mechanical force
Visual signal
Sound alert
In ladder logic, inputs are placed on the __ side of the ladder.
left
right
top
bottom
The two methods to program multiple inputs are __ and __.
series and parallel
analog and digital
input and output
push and pull
A light is connected to the __ module in the PLC.
output
input
memory
logic
The XIC instruction is activated when the memory location is __.
one
zero
two
off
In an "AND" gate, the output is only turned on when __ inputs are true.
all
none
some
one
If you need multiple inputs to be on to activate an output, you should use the __ method.
AND
OR
NOT
XOR
"OR" inputs are added in __.
parallel
series
sequence
reverse
When programming ladder logic with multiple outputs, the outputs are placed on which side of the ladder?
Left-hand
Right-hand
Top
Bottom
Multiple outputs are preferred to be programmed in which configuration?
Series
Parallel
Diagonal
Circular
In a ladder logic rung, the continuity starts from where to where?
Top to bottom
Left to right
Right to left
Bottom to top
Which instruction in a PLC program is used to check if a contact is not conducting?
Examine if closed
Examine if open
Test if active
Read if true
What is the result if any input in a parallel configuration is off in a PLC circuit?
The output flashes
The output turns off
The output remains on
No effect on output
Which logic gate outputs a true signal if at least one input is true?
AND
OR
NOT
XOR
What is the main function of an output module in a PLC system?
To process logic instructions
To receive signals from sensors
To send control signals to actuators
To store program data
In ladder logic diagrams, which side typically represents the power supply or source?
Left
Right
Bottom
Top
One of your inputs is true, but the other is false. Your code returns false. Which gate is being used?
Click on the shaded rectangle to select your answer
One of your inputs is true, but the other is false. Your code returns false. Which gate is being used?
Click on the shaded rectangle to select your answer
You can choose one thing, or the other, or both. Which gate is this?
Click on the shaded rectangle to select your answer
You want a gate that flips the input from true to false.
Click on the shaded rectangle to select your answer
Which of the following is an input field device?
indicator light
small motor
selector switch
motor starter coil
What is this symbol?
AND
OR
NOT
NEVER
What is this symbol?
AND
OR
NOT
NEVER
What basic ladder diagram logic function is shown here?
AND
OR
NOT
NAND
What basic ladder diagram logic function is shown here?
AND
OR
NOT
NAND
What basic ladder diagram logic function is shown here?
AND
OR
NOT
NAND
What basic ladder diagram logic function is shown here?
NAND
NOR
NOT
AND
