Bsnl Placement Papers 2026

Meta Description: BSNL placement papers 2026 for JE, TTA, and Management Trainee exams. Get exam pattern, aptitude questions, technical questions, and salary details for BSNL recruitment.

Introduction

Bharat Sanchar Nigam Limited (BSNL), India's government-owned telecommunications company, has been serving the nation since 2000. With a vast network infrastructure spanning every corner of India, including remote rural areas, BSNL plays a crucial role in India's digital inclusion mission. The company provides landline, mobile, and broadband services to millions of customers across the country.

BSNL offers excellent career opportunities for engineering graduates, diploma holders, and management professionals through various recruitment examinations. Positions like Junior Engineer (JE), Telecom Technical Assistant (TTA), and Management Trainee (MT) are highly sought after due to job security, government benefits, and the opportunity to serve in public sector telecommunications. This guide provides comprehensive preparation material for BSNL recruitment exams.

BSNL Exam/Selection Pattern

Round	Type	Duration	Questions	Topics Covered
Round 1	Written Examination	3 hours	200	Technical (100) + General Ability (100)
Round 2	Document Verification	-	-	Educational certificates, ID proof
Round 3	Medical Examination	-	-	Physical fitness test

Detailed Pattern:

• Part-I: General Ability Test (20 marks) - General English, General Awareness
• Part-II: Basic Engineering (90 marks) - Maths, Physics, Basic Electricity
• Part-III: Specialization (90 marks) - Domain-specific technical subjects

Negative Marking: 0.25 marks per wrong answer

10 Aptitude Questions with Solutions

Question 1: Percentage

If BSNL's subscriber base decreases by 10% and then increases by 10%, what is the net percentage change?

Solution: Let original = 100 After 10% decrease = 90 After 10% increase = 90 × 1.10 = 99 Net change = (100 - 99)/100 × 100 = 1% decrease

Question 2: Simple Interest

A BSNL employee invests ₹25,000 in a government scheme at 8% simple interest. What will be the amount after 4 years?

Solution: SI = PRT/100 = 25000 × 8 × 4/100 = ₹8,000 Amount = Principal + Interest = 25,000 + 8,000 = ₹33,000

Question 3: Time and Work

15 workers can complete a cable laying project in 24 days. How many additional workers are needed to complete it in 18 days?

Solution: Total work = 15 × 24 = 360 worker-days Workers needed = 360/18 = 20 workers Additional workers needed = 20 - 15 = 5 workers

Question 4: Ratio and Proportion

The ratio of landline to mobile subscribers in a region is 2:5. If there are 40,000 landline subscribers, find the total subscribers.

Solution: 2 parts = 40,000, so 1 part = 20,000 Mobile subscribers = 5 × 20,000 = 100,000 Total subscribers = 40,000 + 100,000 = 140,000

Question 5: Average

The average salary of 10 BSNL employees is ₹35,000. When a new manager joins, the average becomes ₹38,000. What is the manager's salary?

Solution: Sum of 10 employees = 10 × 35,000 = ₹3,50,000 Sum of 11 employees = 11 × 38,000 = ₹4,18,000 Manager's salary = 4,18,000 - 3,50,000 = ₹68,000

Question 6: Number Series

Find the next number: 3, 8, 15, 24, 35, ?

Solution: Pattern: n² - 1, n² + 0, n² + 1... OR (n+1)² - 1 2²-1=3, 3²-1=8, 4²-1=15, 5²-1=24, 6²-1=35, 7²-1=48

Question 7: Profit and Loss

A BSNL modem costing ₹1,800 is sold at a 20% loss. What is the selling price?

Solution: Selling Price = Cost Price × (1 - Loss%) SP = 1800 × 0.80 = ₹1,440

Question 8: Speed and Distance

A signal travels through an optical fiber at 2 × 10⁸ m/s. How much time will it take to travel 500 km?

Solution: Time = Distance/Speed = (500 × 1000)/(2 × 10⁸) = 500,000/200,000,000 = 0.0025 seconds = 2.5 ms

Question 9: Probability

Two dice are thrown. What is the probability of getting a sum of 7?

Solution: Total outcomes = 36 Favorable outcomes for sum 7: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) = 6 Probability = 6/36 = 1/6

Question 10: Compound Interest

₹10,000 is invested at 10% compound interest for 2 years. What is the compound interest earned?

Solution: Amount = P(1 + R/100)^T = 10000(1.10)² = ₹12,100 Compound Interest = 12,100 - 10,000 = ₹2,100

10 Domain-Specific Questions with Answers

Question 1: Telecommunications

Q: What is the difference between circuit switching and packet switching? A: Circuit switching establishes a dedicated path before communication (traditional phone calls). Packet switching breaks data into packets that travel independently (internet). BSNL uses both in its network infrastructure.

Question 2: Electronics

Q: What is the function of a modem? A: A modem (Modulator-Demodulator) converts digital signals from computers to analog signals for transmission over telephone lines and vice versa. BSNL broadband uses ADSL/VDSL modems.

Question 3: Electrical Engineering

Q: State Ohm's Law and give its formula. A: Ohm's Law states that current through a conductor is directly proportional to voltage across it at constant temperature. Formula: V = IR, where V=Voltage, I=Current, R=Resistance.

Question 4: Networking

Q: What is the difference between a router and a switch? A: A router connects different networks and routes data based on IP addresses. A switch connects devices within the same network using MAC addresses. Routers operate at Layer 3, switches at Layer 2.

Question 5: Digital Electronics

Q: Convert binary 101101 to decimal. A: 1×2⁵ + 0×2⁴ + 1×2³ + 1×2² + 0×2¹ + 1×2⁰ = 32 + 0 + 8 + 4 + 0 + 1 = 45

Question 6: Communication Systems

Q: What is modulation and why is it necessary? A: Modulation is the process of varying a carrier signal to encode information. It's necessary because low-frequency signals cannot travel long distances and need to be superimposed on high-frequency carriers.

Question 7: Computer Networks

Q: What is the difference between IPv4 and IPv6? A: IPv4 uses 32-bit addresses (4.3 billion addresses). IPv6 uses 128-bit addresses (virtually unlimited). IPv6 also has better security, auto-configuration, and simplified header format.

Question 8: Optical Fiber

Q: What are the advantages of optical fiber over copper cables? A: Higher bandwidth, longer transmission distance, immunity to EMI, lower signal loss, smaller size, and greater security. BSNL BharatNet uses optical fiber for rural connectivity.

Question 9: Wireless Communication

Q: What is the difference between GSM and CDMA? A: GSM (Global System for Mobile) uses TDMA technology with SIM cards. CDMA (Code Division Multiple Access) uses spread spectrum technology without SIM cards. BSNL operates on GSM technology.

Question 10: Basic Electricity

Q: What is the difference between AC and DC? A: AC (Alternating Current) periodically reverses direction (50Hz in India). DC (Direct Current) flows in one direction. AC is used for power transmission; DC is used in batteries and electronics.

Preparation Tips

• Focus on Technical Subjects: BSNL exam is 90% technical; give maximum time to your specialization subjects and basic engineering • Practice Previous Papers: Solve at least 5 years of previous BSNL JE/TTA papers to understand the question pattern • Master Basic Engineering: Don't ignore the 90 marks of Basic Engineering section covering Maths, Physics, and Basic Electricity • Time Management: With 200 questions in 3 hours, practice solving questions quickly - aim for less than 50 seconds per question • Stay Updated on BSNL: Follow BSNL's latest initiatives like 4G rollout, BharatNet project, and government telecom policies

Expected CTC/Pay Scale

Post	Grade Pay	Basic Pay	Total Emoluments (Approx)
Junior Engineer (JE)	₹4,200	₹13,600 - ₹25,520	₹35,000 - ₹45,000/month
Telecom Technical Assistant	₹3,600	₹11,000 - ₹22,000	₹28,000 - ₹38,000/month
Management Trainee	₹4,600	₹16,400 - ₹40,500	₹50,000 - ₹65,000/month
Junior Telecom Officer	₹4,200	₹13,600 - ₹25,520	₹35,000 - ₹45,000/month

Additional Benefits: DA (Dearness Allowance), HRA, Medical benefits, Pension under NPS, Leave Travel Concession, and subsidized quarters accommodation.

Conclusion

BSNL offers a stable and rewarding career in the public sector telecommunications industry. While the recruitment process is competitive with a large number of applicants, systematic preparation focusing on technical subjects and time management can help you succeed. The job security, government benefits, and opportunity to contribute to India's digital infrastructure make BSNL an attractive employer.

Call to Action: Start your BSNL exam preparation today! Download the official syllabus, collect previous year papers, and create a study plan covering all technical subjects. Join online study groups for BSNL aspirants to stay motivated. Your government telecom career awaits!

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Last Updated: March 2026