This page contains NTPC placement papers from 2024 with previous year questions, solutions, and exam patterns.
Section Questions Time Difficulty Technical 40-50 60 min Medium-Hard Aptitude 20-25 30 min Medium
Q1: Power Plant Efficiency - 2024 Real Question Problem : A thermal power plant consumes 5000 kg of coal per hour with calorific value 25 MJ/kg. If the plant generates 25 MW of electricity, calculate the overall efficiency.
Solution :
Heat Input = 5000 kg/h × 25 MJ/kg = 125,000 MJ/h = 125,000/3600 MW = 34.72 MW
Electrical Output = 25 MW
Efficiency = (25 / 34.72) × 100% = 72%
Technical Section is Critical : Must perform well in power generation and engineering fundamentals
Aptitude Section : Important for overall performance
Time Management : 40-50 technical questions in 60 min + 20-25 aptitude in 30 min
Success Rate : Only 10-15% cleared written exam and advanced to interviews
Platform : NTPC written examination
Focus Areas : Power generation, thermal power plants, engineering fundamentals
Based on candidate experiences from 2024 NTPC interviews:
2024 Interview Process:
Written Examination (90 minutes) : Technical (40-50) + Aptitude (20-25)
Technical Interview (60-90 minutes) : Power generation concepts, thermal power plants, engineering fundamentals, problem-solving
HR Interview (30-45 minutes) : Behavioral questions, company fit, motivation, power generation passion
Common 2024 Interview Topics:
Technical : Power generation, thermal power plants, engineering fundamentals
Aptitude : Quantitative reasoning, logical reasoning
Behavioral : Problem-solving approach, power generation passion, teamwork, motivation
Success Tips:
Strong technical performance is essential - master power generation and engineering fundamentals
Understand thermal power plant systems and power generation processes
Practice problem-solving in power generation domain
Prepare behavioral examples demonstrating power generation passion
Understand NTPC’s projects and power generation programs
Practice explaining complex technical concepts clearly
For detailed interview experiences, visit NTPC Interview Experience page.
Master Technical Fundamentals : Focus on power generation, thermal power plants - study thoroughly
Engineering Fundamentals : Strong understanding of engineering fundamentals relevant to power generation
Practice Previous Year Papers : Solve NTPC written exam papers from 2020-2024 to understand patterns
Time Management : Practice completing 40-50 technical questions in 60 minutes
Aptitude Practice : Practice quantitative and logical reasoning
Power Generation : Deep understanding of thermal power plants, power generation processes
Problem-Solving : Practice solving complex technical problems in power generation domain
Behavioral Preparation : Prepare examples using STAR format - power generation passion, problem-solving
Mock Tests : Take timed practice tests to improve speed and accuracy
NTPC Projects : Stay updated with NTPC’s projects and power generation programs
Practice 2024 papers to understand NTPC pattern and prepare effectively!