100+ Free KPTCL AE/JE Practice Questions

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2026 Statistics

Key Facts: KPTCL AE/JE Exam

100 MCQs

Total Questions

KEA Exam Pattern

120 mins

Time Limit

KEA Exam Rules

-0.25

Negative Mark

Per Wrong Answer

75%

Technical Weight

Engineering Subject

35%

Qualifying Mark

Minimum Required

₹600

GM Application Fee

KEA Notification

The KPTCL AE/JE recruitment written test is a 2-hour, 100-mark Computer Based Test administered by the Karnataka Examinations Authority (KEA). The paper contains 75 technical questions matching the candidate's engineering discipline (Electrical or Civil) and 25 questions covering General Aptitude, GK, and Indian Constitution. A negative marking penalty of 0.25 applies for each incorrect answer, and candidates must secure at least 35% to qualify.

Sample KPTCL AE/JE Practice Questions

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

1What is the equivalent resistance between terminals A and B of a delta network containing three 15-ohm resistors when converted to a star network?

A.5 ohms

B.15 ohms

C.45 ohms

D.7.5 ohms

Explanation: For a balanced delta network with resistors R_d, the equivalent star branch resistance R_s is given by R_s = R_d / 3. Here, R_s = 15 / 3 = 5 ohms.

2Under what condition does resonance occur in a series RLC circuit?

A.Inductive reactance equals capacitive reactance

B.Inductive reactance is greater than capacitive reactance

C.Capacitive reactance is greater than inductive reactance

D.Resistance equals the net reactance

Explanation: Resonance in a series RLC circuit occurs when the inductive reactance (X_L) equals the capacitive reactance (X_C), resulting in a net reactance of zero and minimum impedance.

3What is the primary function of a conservator tank in a power transformer?

A.To allow expansion and contraction of oil due to temperature changes

B.To provide fresh air for cooling the transformer windings

C.To filter moisture and impurities from the insulating oil

D.To protect the transformer from internal short circuits

Explanation: A conservator tank is located on top of the transformer and provides space for the expansion and contraction of oil during temperature variations without letting it overflow.

4What is the slip of a 3-phase induction motor at standstill?

A.1.0

B.0.0

C.0.5

D.Infinite

Explanation: Slip s is defined as (N_s - N_r) / N_s. At standstill, the rotor speed N_r is 0, so the slip s = N_s / N_s = 1.0.

5Which of the following materials is most commonly used as a moderator in a nuclear power plant?

A.Graphite

B.Boron

C.Cadmium

D.Lead

Explanation: Graphite and heavy water are common moderators used to slow down fast neutrons to thermal velocities in nuclear reactors.

6What is the typical value of surge impedance for an overhead transmission line?

A.400 ohms

B.40 ohms

C.4000 ohms

D.4 ohms

Explanation: Overhead transmission lines generally have a surge impedance (characteristic impedance) in the range of 400 to 500 ohms.

7In a control system, what does a type 0 system represent?

A.A system with no poles at the origin

B.A system with one pole at the origin

C.A system with no zeroes at the origin

D.A system with infinite steady-state error

Explanation: The type of a control system is determined by the number of poles of the open-loop transfer function at the origin. Type 0 means there are no poles at the origin.

8Which instrument is used to measure very high values of insulation resistance?

A.Megger

B.Multimeter

C.Wheatstone Bridge

D.Kelvin Double Bridge

Explanation: A Megger is a specialized high-voltage instrument specifically designed to measure high insulation resistances in megohms.

9What is the primary function of a freewheeling diode in rectifier circuits?

A.To prevent inductive voltage spikes and improve input power factor

B.To increase the peak inverse voltage rating of the circuit

C.To eliminate ripple from the DC output voltage

D.To regulate the output DC voltage level

Explanation: A freewheeling diode provides a path for current in an inductive load when the main switches turn off, preventing large inductive voltage spikes and improving the power factor.

10What is the ideal open-loop voltage gain of an operational amplifier?

A.Infinite

B.Zero

C.Unity

D.100,000

Explanation: An ideal operational amplifier (op-amp) has an infinite open-loop voltage gain, allowing it to amplify even minute differences in inputs.

About the KPTCL AE/JE Exam

Prepare for the KPTCL Assistant Engineer (AE) and Junior Engineer (JE) online aptitude test. Practice with 100 comprehensive questions covering Electrical, Civil, and General Aptitude/Awareness. Updated for 2026.

Questions

100 scored questions

Time Limit

2 hours

Passing Score

35%

Exam Fee

₹600 (General/OBC) (KEA & KPTCL)

KPTCL AE/JE Exam Content Outline

75%

Core Technical Engineering

Electrical engineering topics (circuits, machines, power systems, power electronics, measurements) or Civil engineering topics (structural analysis, strength of materials, fluid mechanics, soil mechanics).

25%

General Aptitude & General Awareness

Quantitative aptitude, logical reasoning, general knowledge, current events, Indian constitution, and history/geography of Karnataka.

How to Pass the KPTCL AE/JE Exam

What You Need to Know

Passing score: 35%
Exam length: 100 questions
Time limit: 2 hours
Exam fee: ₹600 (General/OBC)

Keys to Passing

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

KPTCL AE/JE Study Tips from Top Performers

1Dedicate 75% of your prep time to core engineering disciplines. High scores in the technical section are the primary driver of merit selection.

2Practice solving numerical calculations without a calculator, as physical calculators are not permitted in the KEA exam hall.

3Brush up on the geography and history of Karnataka, including major rivers, dams, power generation stations, and historical dynasties like the Kadambas and Hoysalas.

4Carefully manage the negative marking. Avoid blind guessing on multiple-choice questions since a 0.25 mark penalty can quickly drag down your ranking.

5Review the past 5-10 years of KPTCL AE/JE previous question papers to understand the depth of technical concepts tested.

Frequently Asked Questions

What is the KPTCL AE/JE exam pattern and marking scheme?

The exam consists of 100 multiple-choice questions (MCQs) to be completed in 2 hours (120 minutes). Every correct answer yields 1 mark, while every wrong answer incurs a deduction of 0.25 marks (negative marking). 75 questions are technical/engineering-specific, and 25 questions cover General Aptitude & General Awareness.

Is the Kannada Language Test compulsory for all KPTCL applicants?

Yes, it is compulsory for candidates who have not studied Kannada as a first, second, or third language in their SSLC (10th Standard) or equivalent examination. Such candidates must qualify in a descriptive 150-mark Kannada Language Test conducted by KEA, securing a minimum of 50 marks before their aptitude test marks can be considered.

What is the minimum qualifying score for the KPTCL AE/JE written exam?

The minimum qualifying score set by KPTCL is 35% (35 out of 100 marks) in the written aptitude test. However, because recruitment is highly competitive and depends entirely on the merit list and vacancy counts, the actual cutoff required for selection is typically much higher.

Are B.E./B.Tech final year students eligible to apply for the KPTCL AE post?

Generally, candidates must have completed their degree and possess the final marks card and degree certificate as of the last date of the online application submission. Provisional registration is usually not allowed unless specifically permitted in a given recruitment year's notification.

Which agency conducts the KPTCL written aptitude test?

The Karnataka Examinations Authority (KEA) is the designated agency that conducts the online/offline written aptitude test on behalf of the Karnataka Power Transmission Corporation Limited (KPTCL).

100+ Free KPTCL AE/JE Practice Questions

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