100+ Free UPPSC AE Electrical Practice Questions

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2026 Statistics

Key Facts: UPPSC AE Electrical Exam

250 MCQs

Total written exam questions (Paper 1 & 2)

UPPSC AE Scheme

750 Marks

Total marks for the written examination stage

UPPSC AE Marking Scheme

1/3 Negative

Marks deducted for each incorrect answer (-1 mark)

UPPSC AE Marking Scheme

21 - 40 Years

Age eligibility range for General category candidates

UPPSC Eligibility Guidelines

100 Marks

Maximum marks for the Personal Interview stage

UPPSC AE Recruitment Policy

UPPSC AE Electrical is a competitive state-level exam. The written portion features two papers totaling 250 MCQs (750 marks), followed by a 100-mark interview. General fee is ₹225. This prep bank contains 100 solved electrical engineering questions.

Sample UPPSC AE Electrical Practice Questions

Try these sample questions to test your UPPSC AE Electrical exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A series RLC circuit has R = 10 ohms, L = 0.1 H, and C = 10 microfarads. What is the resonant frequency of this circuit in radians per second?

A.1000 rad/s

B.100 rad/s

C.500 rad/s

D.318 rad/s

Explanation: The resonant frequency of a series RLC circuit is given by omega_0 = 1 / sqrt(L * C). Substituting the values, we get omega_0 = 1 / sqrt(0.1 * 10 * 10^-6) = 1 / sqrt(10^-6) = 1000 rad/s.

2A network has a driving point impedance function Z(s) = (s^2 + 4s + 3) / (s^2 + 2s). How many poles and zeros does Z(s) have in the finite s-plane?

A.2 poles and 2 zeros

B.1 pole and 2 zeros

C.2 poles and 1 zero

D.0 poles and 2 zeros

Explanation: The numerator polynomial s^2 + 4s + 3 = (s + 1)(s + 3) has roots at s = -1 and s = -3, representing 2 finite zeros. The denominator polynomial s^2 + 2s = s(s + 2) has roots at s = 0 and s = -2, representing 2 finite poles. Thus, Z(s) has 2 poles and 2 zeros in the finite s-plane.

3According to the Maximum Power Transfer Theorem, what is the value of load impedance ZL that extracts maximum power from a source with source impedance ZS = 5 + j3 ohms?

A.5 - j3 ohms

B.5 + j3 ohms

C.5 ohms

D.sqrt(34) ohms

Explanation: For maximum power transfer to a complex load, the load impedance ZL must be the complex conjugate of the source impedance ZS. Therefore, ZL = ZS* = 5 - j3 ohms.

4What is the relationship between the transmission parameters A, B, C, and D for a reciprocal two-port network?

A.AD - BC = 1

B.AD - BC = 0

C.AB - CD = 1

D.A = D

Explanation: For a reciprocal two-port network, the determinant of the transmission matrix must be unity, which translates to AD - BC = 1. This parameter relationship ensures reciprocity.

5What is the Laplace transform of the unit ramp function r(t) = t * u(t)?

A.1 / s^2

B.1 / s

C.1 / (s + 1)

D.2 / s^3

Explanation: The Laplace transform of t^n is n! / s^(n+1). For a unit ramp where n = 1, the Laplace transform is 1! / s^2 = 1 / s^2. This is valid for Re(s) > 0.

6A network has Z-parameters given by Z11 = 4, Z12 = 2, Z21 = 2, Z22 = 3. What is the value of the Y-parameter Y11 for this network?

A.0.375 S

B.0.25 S

C.0.5 S

D.0.75 S

Explanation: The Y-parameter matrix is the inverse of the Z-parameter matrix. The determinant delta_z = Z11*Z22 - Z12*Z21 = 4*3 - 2*2 = 12 - 4 = 8. Thus, Y11 = Z22 / delta_z = 3 / 8 = 0.375 S.

7A 100-ohm resistor is connected in series with a parallel combination of a 50-ohm resistor and a 50-ohm resistor. What is the total equivalent resistance of this circuit?

A.125 ohms

B.200 ohms

C.150 ohms

D.75 ohms

Explanation: First, the parallel combination of the two 50-ohm resistors is calculated: R_parallel = (50 * 50) / (50 + 50) = 25 ohms. Adding this in series with the 100-ohm resistor yields R_total = 100 + R_parallel = 100 + 25 = 125 ohms.

8In the s-domain, the impedance of a capacitor with capacitance C is represented as:

A.1 / (sC)

B.sC

C.s / C

D.C / s

Explanation: The relationship between voltage and current in a capacitor is i(t) = C * dv(t)/dt. Taking the Laplace transform with zero initial conditions yields I(s) = s * C * V(s). Therefore, the impedance Z(s) = V(s) / I(s) = 1 / (sC).

9What is the Fourier transform of the Dirac delta function delta(t)?

A.1

B.2pi * delta(w)

C.1 / (jw)

D.jw

Explanation: The Fourier transform of the Dirac delta function delta(t) is defined by the integral from minus infinity to infinity of delta(t) * e^(-jwt) dt. Using the sifting property of the delta function at t = 0, this integral evaluates to e^0 = 1.

10A causal LTI system has a transfer function H(z) = 1 / (1 - 0.5*z^-1). What is the region of convergence (ROC) for this system?

A.|z| > 0.5

B.|z| < 0.5

C.|z| > 1.0

D.|z| < 1.0

Explanation: For a causal LTI system, the ROC is always outside the outermost pole. The pole of H(z) is at z = 0.5 (since the denominator becomes zero when z = 0.5). Therefore, the ROC must be |z| > 0.5 for the system to be causal.

About the UPPSC AE Electrical Exam

The UPPSC Assistant Engineer (Electrical) Examination is a highly competitive state-level exam conducted by the Uttar Pradesh Public Service Commission for recruiting Group 'B' Gazetted Assistant Engineers in various government departments (like PWD, Irrigation, Housing, and UPRVUNL). The selection process consists of a written Main Examination consisting of two objective papers (Paper I and Paper II), and a Personal Interview. This practice bank is designed to simulate the actual exam's technical standard, featuring questions ranging from basic circuit analysis to advanced power system protection, electrical machines, and control systems, all complete with detailed step-by-step solutions.

Questions

100 scored questions

Time Limit

5 hours total (2.5 hours/150 minutes per paper)

Passing Score

Qualifying cut-off is 40% aggregate for General/OBC/EWS and 35% for SC/ST. The final selection is based on the combined merit of the written exam (750 marks) and interview (100 marks).

Exam Fee

General/OBC/EWS: ₹225. SC/ST: ₹105. PwD: ₹25. (Uttar Pradesh Public Service Commission (UPPSC))

UPPSC AE Electrical Exam Content Outline

12%

Networks and Systems

Steady-state and transient analysis, network theorems (Thevenin's, Norton's, Max Power Transfer), two-port networks, Laplace/Fourier/Z-transforms, network synthesis.

10%

Electromagnetic Theory

Electrostatic and magnetostatic fields, Laplace and Poisson equations, Maxwell's equations, plane wave propagation, transmission lines, and wave guides.

12%

Control Systems

Modeling, transfer functions, time and frequency domain analysis, stability (Routh-Hurwitz, Nyquist, Bode, Root Locus), state-space analysis, compensator design.

12%

Elements of Electronics

Semiconductor diodes, BJTs, FETs, small-signal equivalent circuits, amplifiers, oscillators, op-amp circuits, digital logic gates, and combinational/sequential circuits.

18%

Electrical Machines

DC machines (generators and motors), transformers (single-phase and three-phase), induction motors, synchronous machines, and fractional horsepower/special motors.

18%

Power Systems

Transmission line modeling, corona, load flow studies, fault analysis, stability, economic load dispatch, protection systems, relays, circuit breakers, and HVDC/FACTS.

10%

Measurement and Instrumentation

AC and DC bridges, measurement of voltage, current, power, and energy, CRO, digital instruments, and electrical transducers (LVDT, RTD, strain gauges).

Power Electronics and Drives

Characteristics of SCRs, MOSFETs, and IGBTs, controlled rectifiers, choppers (DC-DC converters), inverters, and speed control of AC/DC motors.

How to Pass the UPPSC AE Electrical Exam

What You Need to Know

Passing score: Qualifying cut-off is 40% aggregate for General/OBC/EWS and 35% for SC/ST. The final selection is based on the combined merit of the written exam (750 marks) and interview (100 marks).
Exam length: 100 questions
Time limit: 5 hours total (2.5 hours/150 minutes per paper)
Exam fee: General/OBC/EWS: ₹225. SC/ST: ₹105. PwD: ₹25.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

UPPSC AE Electrical Study Tips from Top Performers

1Focus heavily on solving numerical problems, especially in Electrical Machines, Power Systems, and Networks, as these make up a significant portion of the technical papers.

2Understand the application of Indian Electricity Rules (IE Rules) and Indian Standards (IS codes) related to electrical systems, wiring, and earthing.

3For Control Systems and Network Theory, memorize formulas for transient responses, steady-state errors, and resonance frequencies to save time during calculations.

4Regularly practice Hindi grammar and General Studies. Hindi is a high-scoring section that can significantly boost your overall score and merit rank.

5Solve previous years' UPPSC AE, ESE, and GATE (one-mark style) questions to build accuracy and speed within the 2.5-hour exam window.

Frequently Asked Questions

What is the qualification required for UPPSC AE Electrical?

Candidates must possess a Bachelor's Degree in Electrical Engineering (B.E. or B.Tech) from a recognized university or institution, or an equivalent qualification such as Associate Membership of Institution of Engineers (India) in Electrical Engineering.

Is there negative marking in the UPPSC AE exam?

Yes, there is negative marking of 1/3 (33%) of the marks assigned to a question. Since each question in the written test carries 3 marks, 1 mark is deducted for every incorrect response.

What is the application fee for UPPSC AE?

The application fee is ₹225 for General/OBC/EWS candidates, ₹105 for SC/ST candidates, and ₹25 for PwD (physically handicapped) candidates of Uttar Pradesh.

What are the stages in the selection process for UPPSC AE Electrical?

The selection process consists of two main stages: a written Main Examination consisting of two objective papers (Paper I and Paper II), and a Personal Interview. Final selection is based on the combined marks of the written exam (750 marks) and the interview (100 marks).

What is the age limit to apply for the UPPSC AE exam?

Candidates must be between 21 and 40 years of age. Relaxations of up to 5 years are available for SC, ST, OBC, and skilled sportspersons of Uttar Pradesh as per state government regulations.

100+ Free UPPSC AE Electrical Practice Questions

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