The following symbol in the ladder logic represents

F1 Ateeb Ravi 02.12.21 D9

This question was previously asked in
ESE Mechanical 2021 Official Paper
View all UPSC IES Papers >
  1. Normally open contacts
  2. Normally closed contacts
  3. Output loads
  4. Special instruction

Answer (Detailed Solution Below)

Option 3 : Output loads
Free
ST 1: UPSC ESE (IES) Civil - Building Materials
6.2 K Users
20 Questions 40 Marks 24 Mins

Detailed Solution

Download Solution PDF

Explanation:

Normally open contact

Passes power (ON) if coil driving the contact is ON (closed).

F1 Ateeb Ravi 02.12.21 D6

Normally closed contact

Passes power (ON) if coil driving the contact is off (open).

F1 Ateeb Ravi 02.12.21 D7

Output or coil:

If any left-to-right path of inputs passes power, output is energized.

F1 Ateeb Ravi 02.12.21 D8

Not Output or coil:

If any left-to-right path of inputs passes power output is de-energized.

F1 Ateeb Ravi 02.12.21 D10

Latest UPSC IES Updates

Last updated on May 28, 2025

->  UPSC ESE admit card 2025 for the prelims exam has been released. 

-> The UPSC IES Prelims 2025 will be held on 8th June 2025.

-> The selection process includes a Prelims and a Mains Examination, followed by a Personality Test/Interview.

-> Candidates should attempt the UPSC IES mock tests to increase their efficiency. The UPSC IES previous year papers can be downloaded here.

Get Free Access Now
Hot Links: teen patti party teen patti royal teen patti teen patti wala game teen patti real money app