WorksheetsPLCs & Ladder Programming
Total questions: 8
Worksheet time: 8mins
Name
Class
Date
1.
What is a PLC?
a)
Personal Logic Controller
b)
Programmable Logic Controller
c)
Professional Logic Controller
d)
Permanent Logic Controller
2.
What does a normally open (N.O.) switch do when pressed?
a)
It remains open
b)
It becomes inactive
c)
It becomes active
d)
It turns off
3.
Which logic function requires all inputs to be true for the output to be true?
a)
OR
b)
NOT
c)
AND
d)
XOR
4.
In ladder logic, what does an OR function do?
a)
Activates output if all inputs are true
b)
Activates output if any input is true
c)
Deactivates output if all inputs are true
d)
Deactivates output if any input is true
5.
What is the role of a truth table in ladder logic?
a)
To illustrate physical connections
b)
To show possible input and output combinations
c)
To measure current flow
d)
To display circuit symbols
6.
What does an AND circuit require to complete the circuit?
a)
Only one switch closed
b)
Both switches open
c)
Both switches closed
d)
One switch open and one closed
7.
What happens in a NOT function when the switch is pressed?
a)
Current flows
b)
Current stops flowing
c)
Current increases
d)
Current decreases
8.
Which of the following is an example of a ladder logic input device?
a)
Motor
b)
Lamp
c)
ON button
d)
Conveyor
100 %
