PLC Pre Test

PLC stands for_______

• Programmable Ladder Controller

• Program Low Controller

• Programmable Logic Controller

• Programmable Logic Converter

Input modules provide an interface between ______________and_____________.

• Input connections and the CPU

• Field equipment and the CPU

• Output modules and field devices

• The CPU and output modules

A discrete input module which can be interfaced is ___________

• Horn

• push buttons

• contactor

• Pilot lamp

If two NC contacts are connected in series that satisfies _______Gate logic

• AND

• NAND

• OR

• NOR

Status of input devices are stored in ________ Register.

• Output single

• Input single

• Output group

• Input group

The______ specifies at what rate the timer will increment

\

• preset time

• base time

• reset time

• rise time

For Retentive timers ________input is mandatory.

• Enable

• Marker relay

• Reset

• Active

The major advantage of retentive timer is __________.

• It has only one input

• It looses accumulated time

• It has only on delay

• It retains accumulated time

HSC stands for _________

• High Sequence Counter

• High Standard Counter

• High Speed Counter

• Higher secondary counter

The output of a PLC counter is energized when the___________

• Count input rung is true

• Count input rung is false

• Accumulated count is equal to the preset count

• Preset count is greater than the accumulated count