Which of the following is an Operational amplifier?

This question was previously asked in
RRB ALP CBT 2 Electronic Mechanic Previous Paper: Held on 23 Jan 2019 Shift 1
View all RRB ALP Papers >
  1. IC 8085
  2. IC 7805
  3. IC 741
  4. IC 555

Answer (Detailed Solution Below)

Option 3 : IC 741
Free
General Science for All Railway Exams Mock Test
2.1 Lakh Users
20 Questions 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

The Pin diagram of 741 IC Op-amp is shown

RRB JE LIC PART 2 67 14 Q Hindi - Final images deepak Q10

  • 8 Pin IC
  • Pin 1 & 5 offset null pins
  • Pin 2 is inverting Input (V-)
  • Pin 3 is non-inverting Input (V+)
  • Pin 4 is - VEE supply
  • Pin 6 is for Output
  • Pin 7 is + Vcc supply


Pin 8 is not connected and not used

26 June 1

1. IC 8085 is a microprocessor programmable electronics chip. A single IC has a decision-making capability similar to that of a CPU present in mobile phones, washing machines, radars, satellites, etc. 

2. IC 7805 is a voltage regulator with output fixed at 5 V.

3. The IC 555 timer is an integrated circuit used in a variety of timer, pulse generation, and oscillator applications.

Latest RRB ALP Updates

Last updated on Jun 11, 2025

-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.

-> The UPSC Prelims Result 2025 and UPSC IFS Result 2025 has been released @upsc.gov.in

-> Railway Recruitment Board activated the RRB ALP application form 2025 correction link, candidates can make the correction in the application form till 31st May 2025. 

-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.

-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.

->The candidates must have passed 10th with ITI or Diploma to be eligible for this post. 

->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.

-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways. 

-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.

-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here

Get Free Access Now
Hot Links: teen patti palace teen patti noble teen patti sweet