Impedance can be measured by using which of the following equipment?

This question was previously asked in
RRB ALP Electronics Mechanic 21 Jan 2019 Official Paper (Shift 3)
View all RRB ALP Papers >
  1. CRO
  2. LCR meter
  3. Function generator
  4. DSO

Answer (Detailed Solution Below)

Option 2 : LCR meter
Free
General Science for All Railway Exams Mock Test
2.2 Lakh Users
20 Questions 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

LCR meter

  • An LCR meter is a type of electronic test equipment used to measure the inductance (L), capacitance (C), and resistance (R) of an electronic component.
  • The series combination of L, C, and R is known as the impedance.
  • It is used in radio and communication engineering and it can also be used to select a certain narrow range of frequencies from the total spectrum of ambient radio waves. 
  • The LCR meter measures current, voltage, and phase angle and calculates the corresponding LCR values which can be represented in a number of forms.

Additional Information Cathode Ray Oscilloscope (CRO)

  • CRO is a device that is used for the measurement of parameters of electrical quantities like frequency, amplitude, time period, and phase difference. 

Digital storage oscilloscope (DSO)

  • A digital storage oscilloscope (DSO) is an electronic instrument that measures and records electrical signals.
  • It converts the analog signal into a digital format and stores it in its digital memory.

Function generator

  • A function generator is a specific form of signal generator that is able to generate waveforms typically sine and square waves.
Latest RRB ALP Updates

Last updated on Jul 15, 2025

-> The Railway Recruitment Board has scheduled the RRB ALP Computer-based exam for 15th July 2025. Candidates can check out the Exam schedule PDF in the article.

-> RRB has also postponed the examination of the RRB ALP CBAT Exam of Ranchi (Venue Code 33998 – iCube Digital Zone, Ranchi) due to some technical issues.

-> 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

More Measuring Instruments Questions

Get Free Access Now
Hot Links: teen patti master teen patti bliss teen patti 100 bonus teen patti master gold