B.TechSemester 32024-25Electrical Measurements InstrumentationBEE302

Electrical Measurements Instrumentation (BEE302) - AKTU Question Paper 2024-25

B.Tech · Semester 3 · Free PDF Download

This is the official AKTU Electrical Measurements Instrumentation Previous Year Question Paper for B.Tech Semester 3, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 3
Session:2024-25
University:AKTU / UPTU

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Questions Asked in 2024-25

Electrical Measurements Instrumentation (BEE302) — extracted question text · 70 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 07 = 14
  • a
    What is measurement? Explain me asurement system with appropria te block diagram
  • b
    What is the difference between an ammeter and a voltmeter? CO
  • c
    What is creeping in Energy Meters? How it is prevented? CO
  • d
    What are the applicati ons of bridge circuits? CO
  • e
    Define turns ratio and transformation ratio for CT and PT. CO
  • f
    Write down the a pplications of CRO in measurement. CO
  • g
    What is the basic principle of piezoelectric transducer? CO
Section BAttempt any three of the following: 07 x 3 = 21
  • a
    What is Limiting error in measurement? Three resistors are specified as : 1= 200Ω ± 5%, R2= 100Ω ± 5% and R3= 50Ω ± 5% Determine the magnitude of the resultant resistance and the lim iting error in percentage and in ohms if the resistances are connected in series
  • b
    What are the types of watt me ters in measurement systems? Explain two watt meter method for power measurement in balanced and unbalan ced three phase system
  • c
    Explain the working principle of potentiometers. With the he lp of neat diagram explain D.C. Crompton’s potentiometer
  • d
    Draw and explain the equivale nt circuit and phasor diagram o f current transformer (C.T.). State the ratio error present in current tr ansformer. Also differentiate between current transformer and potential transformer
  • e
    Discuss factors for selecting a transducer. Explain pressure capacitance transducer with a neat diagram. State advantages and disadvanta ges of a capacitive transducer
Section CAttempt any one part of the following: 07 x 1 = 07
  • a
    Illustrate the construction and operation of attraction and repulsion type of moving iron instruments. Also derive the expression of defle cting torque. Enlist the advantages, disadvantages of these instruments
  • b
    Explain the working principle of PMMC instruments. How the current range of PMMC ins trument extended with the help of shunts?
  • a
    How energy is to be measured using energy meters? Explain si ngle phase induction type energy meter with the help of suitable diagram
  • b
    Explain the following instruments with proper diagram: (i) Power factor meter (ii) Analog frequency meter
  • a
    Derive balance equation of Maxwell’s Inductance-Capacitance Bridge along with its phasor diagram. In an Maxwell’s bridge the arms are adjusted as: Arm AB: non-reactive resistance of 700Ω Arm CD: non-reactive resistance of 300Ω Arm AD: non-reactive resistance of 1200Ω in parallel with capac itor of Under balance condition find the components of arm BC (R x and Lx)
  • b
    Explain Schering Bridge for t he measurement of unknown capac itance. How the measure the loss angle and dissipation factor using Sch ering Bridge? The Schering Bridge has the following constants: Arm AB – capacitor of 1µF in parallel with 1.2kΩ resistance Arm AD – resistance of 4.7kΩ , Arm BC – capacitor of 1µF and Ar m CD – unknown capacitor Cx and resistance Rx Calculate the unknown capacitan ce and its dissipation factor. T he frequency is given as 0.5 kHz
  • a
    Describe the construction and working of general purpose CRO with its block diagram and explain its components
  • b
    Define spectrum analyzer. Classify different types of spectr um analyzers and explain basic spectrum analy zer with neat block diagram. Al so give the applications of wave analyzers
  • a
    What do you understand by transducers? Explain the construct ion and working principle of LVDT
  • b
    Explain the principle, constr uction and working of strain ga uge transducer and formulate the expression for gauge factor in ter ms of Poisson’s ratio

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

Electrical Measurements Instrumentation — Other Year Papers

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