|
About the Multiple Choice Questions category
|
|
0
|
474
|
February 3, 2021
|
|
If ac is applied to a diode, and the peak ac voltage never exceeds the avalanche voltage, then the output is ___
|
|
1
|
842
|
November 26, 2022
|
|
For the PLC analog I/O control system shown, the fluid flow is controlled by ___
|
|
2
|
261
|
October 7, 2022
|
|
A sequential logic circuit where the storage elements commonly used are time-delay devices (usually gates) ___
|
|
0
|
148
|
April 6, 2021
|
|
The retentive timer reset (RES) instruction is always given the same address ___
|
|
0
|
133
|
July 6, 2022
|
|
Some PLC counters operate on the leading edge of the input signal
|
|
0
|
160
|
July 8, 2022
|
|
The counter accumulated value is the current count based on the ___
|
|
0
|
153
|
July 8, 2022
|
|
The main difference between a PLC retentive and non-retentive timer is ___
|
|
0
|
661
|
July 8, 2022
|
|
Fiber optic sensor systems are completely immune to all forms ___
|
|
0
|
85
|
July 20, 2022
|
|
In a PLC system, there is a physical connection between field input devices ___
|
|
0
|
129
|
July 25, 2022
|
|
The input/output system forms the interfaces through which field devices ___
|
|
0
|
82
|
July 25, 2022
|
|
A personal computer communicates with the PLC processor ___
|
|
0
|
96
|
July 25, 2022
|
|
PLC systems usually require as much space in an enclosure ___
|
|
0
|
80
|
July 25, 2022
|
|
The maximum current rating for the individual outputs of an AC output module ___
|
|
0
|
77
|
July 25, 2022
|
|
Shielded twisted pair cable is used for connecting to thermocouple inputs ___
|
|
0
|
116
|
July 25, 2022
|
|
The processor may perform functions such as timing, counting, and comparing ___
|
|
0
|
81
|
July 25, 2022
|
|
If you had a hand-held programming terminal from one manufacturer ___
|
|
0
|
125
|
July 26, 2022
|
|
Hot swappable I/O modules are designed to be changed ___
|
|
0
|
100
|
July 26, 2022
|
|
Light is used in I/O modules to separate the real-world electrical signals
|
|
0
|
70
|
July 26, 2022
|
|
HMI screens are developed using a software package on a PC ___
|
|
0
|
95
|
July 26, 2022
|
|
The sum of the backplane current drawn for all modules in a chassis ___
|
|
0
|
105
|
July 26, 2022
|
|
The PLC chassis comes in different sizes according to the ___
|
|
0
|
148
|
July 31, 2022
|
|
The schematic diagram is an example of how a PLC output module is connected to ___
|
|
1
|
112
|
August 1, 2022
|
|
Batteries are used in a PLC's processor to ___
|
|
0
|
151
|
August 1, 2022
|
|
Electronic components found in PLC modules ___
|
|
0
|
135
|
August 1, 2022
|
|
The most commonly used programming device is a ___
|
|
0
|
72
|
August 1, 2022
|
|
When placed in the ___ mode, the processor does not scan/execute the ladder program
|
|
0
|
123
|
August 1, 2022
|
|
For the processor module shown, Block 1 represents the ___
|
|
0
|
114
|
August 1, 2022
|
|
The processor module of the PLC is where the ___
|
|
0
|
132
|
August 1, 2022
|
|
The ___ of an analog I/O module specifies how accurately an analog value can be represented digitally
|
|
0
|
89
|
August 1, 2022
|
