PLC TEST QUESTIONS 100% ANSWERED  

PLC TEST QUESTIONS 100%
ANSWERED

, What protects PLCs from atmospheric conditions? - ANSWERThe PLC enclosure

PLCs are considered what type of equiptment? - ANSWEROpen Type

Name the different sizes of PLCs - ANSWERNano/Pico (1-32)
Micro (32-128)
Medium (128-960)
Large (1000s)

How do you increase current in a circuit? - ANSWERReduce Resistance

When does electric shock occur? - ANSWERWhen you become part of the circuit

What is Resistance? - ANSWEROpposition to current flow

What is lockout? - ANSWERRemoving the source of electrical power and installing a
lock

What is tagout? - ANSWERPlacing a danger tag on the source of electrical power

Name the types of electrical noise cause high voltage spikes. - ANSWERTurning off
inductive loads such as motors, solenoids and coils.

How much induced voltage does it take to create interference in a signaling circuit? -
ANSWERLess that 5 V

Step One of OSHA Lockout/ Tagout - ANSWERPrepare Machinery for Shutdown

Step Two of OSHA Lockout/ Tagout - ANSWERShutdown machinery or equipment

Step Three of OSHA Lockout/ Tagout - ANSWERIsolate machinery or equipment

Step Four of OSHA Lockout/ Tagout - ANSWERLockout/ Tagout electrical disconnect
and other energy supplying devices

Step Five of OSHA Lockout/ Tagout - ANSWERRelease all stored energy

Step Six of OSHA Lockout/ Tagout - ANSWERVerify that machinery or equipment is
isolated

What two terminals do all DC power sources have? - ANSWERPositive and Negative