B.TechSemester 32022-23Electrical Measurements InstrumentationKEE-302

Electrical Measurements Instrumentation (KEE-302) - AKTU Question Paper 2022-23

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 2022-23. 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:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Electrical Measurements Instrumentation (KEE-302) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20

a
Differentiateprimary and seconda ry type of measuring Instruments
b
Write principle of operation fo r thermocouple type instruments
c
Write advantages and disadvantages of Anderson’s bridge for th e measurement of inductance?
d
How Hay’s Bridge is suitable fo r the measurementinductance of large Q coils
e
Define turns ratio and transformation ratio for CT and PT
f
Write applicationsof Ins trument Transformers
g
Write the application of sweep generator in CRO
h
Draw the Lissajous pattern for the frequency ratio 3:2. (i) Differentiate primary and sec ondary Transducers with the help of examples. (j) Define active and passive transducer with the help of example

Section BAttempt any three of the following: 10x3=30

a
The resistance value for three registers are specified as 𝑅ଵ ൌ1 0 0 Ω േ5 %, 𝑅ଶ ൌ 200 Ω േ 5 % and 𝑅ଷ ൌ3 0 0 Ω േ5 % . Determine the value of limiting error in ohms and in percentage for the total equivalent resistance, if they are connected in (i) Series and (ii) parallel, respectively
b
Draw the working circuit ofHay’ s bridge for measurement of indu ctance. Derive the equations for balance and also draw its phasor diagram. State its merits and demerits
c
Draw the equivalent circuit and phasor diagram of current trans former. State the ratio error present in current transformer
d
Classify different types of el ectronic voltmeters. Explain DC v oltmeters with the help of suitable diagrams
e
Describe the principle of opera tion, construction, working and applications of Hall effect transducers

Section CAttempt any one part of the following: 10x1=10

a
Write the principle of operation, working of PMMC instruments w ith necessary diagram. Illustrate the expression of torque equations
b
Describe the construction and work ing principle of electro dyna mometric type instrument with suitable diagram. Printed Pages:02 Sub Code: KEE-302 Paper Id: 233384 Roll No
a
Derive balance equation of Scher ing Bridge with its phasor diag ram and dissipation factor. Mention advantages and disadvantages of this bridge
b
Derive balance equation of Maxw ell’s Inductance Bridge with its p h a s o r d i a g r a m . Also find the quality factor for this bridge. Mention advantage s and disadvantages of this bridge
a
A current transformer with a bar primary has 300 turns in its s econdary winding. The resistance and reactance of secondary circuit are 1.5 and 1.0 o hm respectively. The current following in the secondary winding is 5 A, the magnetiz ing m.m.f is 100 AT and iron loss is 1.2 W. Determine the ratio and phase angle error
b
Draw the equivalent circuit and phasor diagram of potential tra nsformer, also derive the expression of phase angle of potential transformer
a
Describe the construction and working of general purpose CRO wi th its block diagram and explain its components
b
Describe the working principle of spectrum analyzer with the he lp of suitable block diagram. List the various applications of spectrum analyzer
a
Describe the construction and working of strain gauge transducer. A resistance strain gauge having a gauge factor of 2, it is subjected to a strain of 106,.if the resistance of the unstrained gauge is 120 Ω. Calculate the change in resistance of the gauge
b
Describe the principle of operation, construction of piezoelectric transducers. A piezoelectric crystal has a thickness of 2.5 mm and voltage s ensitivity 0.05 Vm/N. Determine the output voltage when it is subjected to a pressure of 1.6 ×106 N/m2

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KEE-302

Questions that appeared in more than one session, found by comparing 3 years of Electrical Measurements Instrumentation papers (2021-22, 2022-23, 2024-25)

Define turns ratio and transformation ratio for CT and PT