Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Programmable Logic Controller (PLC) Questions and Answers – 3
Share
Notification Show More
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Practical Questions > Programmable Logic Controller (PLC) Questions and Answers – 3

Programmable Logic Controller (PLC) Questions and Answers – 3

Last updated: June 6, 2018 10:06 am
Editorial Staff
Practical Questions
No Comments
Share
1 Min Read
SHARE

Suppose we have a PLC connected to three process switches as shown in this illustration:

PLC Programming Questions

In the above diagram :

  • X1 to X4 : Inputs
  • Y1 to Y4 : Outputs

Determine the switch actuation statuses (i.e. low versus high process stimulus) given the “live” display of the ladder logic program shown here:

Switch ladder logic program

Also, determine the status of the lamp connected to the PLC’s Y1 output.

Answer :

  • High pressure and low flow and high temperature.
  • The lamp will be de-energized.

Share Your Answer / Comments

Credits :  Tony R. Kuphaldt – under CC BY 1.0

For More PLC Questions : CLICK HERE

 

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

What Affect the Pressure Measurement Accuracy of a Manometer?
Overhead Product Pressure Control Loop
Identify the Purpose of Flow Ratio Controller
PLC Program to Control a Water Pump
Calculate Temperature of RTD
Why Pressure Vessel Connected to Tubing System?
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Solenoid Valves Questions & Answers – 4
Solenoid Valves Questions & Answers – 1
Draw the appropriate Pressure Switch Symbol ?
Displacer Level Transmitter Questions
Calculate Hydraulic Pressure of a Process Vessel
What is the Purpose of Bourdon Tube Gauge Spiral Spring?
PLC connected to Three Pushbutton Switches
Pressure Transmitter using Potentiometer and Diaphragm

Keep Learning

Float-type Level Switch for Sensing Low Oil Level

Float-type Level Switch for Sensing Low Oil Level

Solenoid Valves Questions

Solenoid Valves Questions & Answers – 3

Paint Mixing System

Paint Mixing System

Calculate Hydrostatic Pressure of a vertical column of Acetic Acid

Hydrostatic Pressure of a vertical column of Acetic Acid

Hydrostatic level transmitter Formula

Hydrostatic Level Transmitter Questions

Manometer Measures Differential Pressure

How Manometer Measures Differential Pressure for Different Fluids?

Double Block and Bleed Valves Opening or Closing Sequence

Double Block and Bleed Valves Opening or Closing Sequence

simple motor start-stop circuit

Liquid Level Switch Control Logic

Learn More

PLC ON DELAY TIMER FUNCTION

#6 PLC Best Practices – Validate Timers and Counters

Instrumentation Word Game

Instrumentation Word Game

What is electrical transformer

Transformer Impedance Ratio

Digital Image Processing Projects - DIP Project Ideas

600+ Digital Image Processing Projects – DIP Project Ideas

Engineers Interview Android App

Pressure Transmitter Circuit

Pressure Transmitter Circuit

Overhead Product Pressure Control Loop

Overhead Product Pressure Control Loop

Siemens PLC Block Diagram

Programmable Logic Controller (PLC) Questions and Answers – 14

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?