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BHEL Placement Papers 2024

Overview

This page collects BHEL placement papers from 2024 with previous-year questions, solutions, and the 2024 exam pattern. It is useful when you want real drive history: what the OA looked like, which question types repeated, and how solutions were approached. Work through the papers below to build speed and accuracy, then compare against newer 2025 material so your prep matches both established BHEL patterns and the latest shifts.

BHEL written examination 2024 pattern

Section Questions Time Difficulty
Technical 40-50 60 min Medium-Hard
Aptitude 20-25 30 min Medium

BHEL Placement Papers 2024 - actual questions & solutions

This section contains practice questions styled on BHEL placement papers 2024 (previous-year pattern), with worked solutions. Use them as timed sectional drills - from student reports drives vary by college and role, so treat this as a high-signal practice bank, not an official paper dump.

Question 1

Q1: Simple interest on ₹5000 at 8% per annum for 3 years is?

Solution:

SI = (P × R × T)/100 = (5000 × 8 × 3)/100 = ₹1200.

Answer: ₹1200

Question 2

Q2: A shopkeeper marks goods 40% above cost and gives a 10% discount. Find the profit percentage.

Solution:

Let CP = 100. MP = 140. SP after 10% discount = 126.

Profit % = 126 − 100 = 26%.

Answer: 26%

Question 3

Q3: A train 240 m long crosses a pole in 16 seconds. Find its speed in km/h.

Solution:

Speed = distance/time = 240/16 m/s = (240/16) × (18/5) = 54 km/h.

Answer: 54 km/h

Question 4

Q4: Pipe A fills a tank in 10 hours, pipe B in 15 hours. How long to fill together?

Solution:

Combined rate = 1/10 + 1/15 = (10+15)/(10×15). Time = 10×15/(10+15) = 6 hours.

Answer: 6 hours

Question 5

Q5: Which number does not belong: 2, 3, 6, 7, 8, 14?

Solution:

Pattern: Pairs (2,3)(6,7) then 8 breaks; or primes vs composites - common key 8 (only even composite in a mixed set framed as n,n+1 pairs)

Odd one out = 8.

Answer: 8

Question 6

Q6: Pointing to a photo, Ravi said, ‘He is the son of my grandfather’s only son.’ How is the person related to Ravi?

Solution:

Grandfather’s only son = Ravi’s father. Son of Ravi’s father = Ravi himself (or his brother).

In standard puzzle framing with one son implied for the speaker context: the person is Ravi’s brother (or Ravi). Most campus keys take Brother.

Answer: Brother

Question 7

Q7: Which protocol is connection-oriented at the transport layer?

Solution:

TCP is connection-oriented; UDP is connectionless.

Answer: TCP

Question 8

Q8: Which SQL clause filters grouped rows after GROUP BY?

Solution:

HAVING filters aggregates; WHERE filters rows before grouping.

Answer: HAVING

Question 9: detect cycle in linked list

Show solution

Problem Statement: Return true if the linked list has a cycle.

Example:

Input: 3→2→0→-4→(back to 2)
Output: true

Solution (Java):

public boolean hasCycle(ListNode head) {
    ListNode slow = head, fast = head;
    while (fast != null && fast.next != null) {
        slow = slow.next;
        fast = fast.next.next;
        if (slow == fast) return true;
    }
    return false;
}

Time Complexity: O(n)
Space Complexity: O(1)

Question 10: reverse a string

Show solution

Problem Statement: Given a string, return it reversed.

Example:

Input: "placement"
Output: "tnemecalp"

Solution (Java):

public String reverse(String s) {
    return new StringBuilder(s).reverse().toString();
}

Time Complexity: O(n)
Space Complexity: O(n)

Question 11: binary tree level order

Show solution

Problem Statement: Return the level-order traversal of a binary tree.

Example:

Input: [3,9,20,null,null,15,7]
Output: [[3],[9,20],[15,7]]

Solution (Java):

public List<List<Integer>> levelOrder(TreeNode root) {
    List<List<Integer>> res = new ArrayList<>();
    if (root == null) return res;
    Queue<TreeNode> q = new ArrayDeque<>();
    q.add(root);
    while (!q.isEmpty()) {
        int sz = q.size();
        List<Integer> level = new ArrayList<>();
        for (int i = 0; i < sz; i++) {
            TreeNode n = q.poll();
            level.add(n.val);
            if (n.left != null) q.add(n.left);
            if (n.right != null) q.add(n.right);
        }
        res.add(level);
    }
    return res;
}

Time Complexity: O(n)
Space Complexity: O(n)

Key insights from 2024 BHEL written examination

  1. Technical Section is Critical: Must perform well in power generation and engineering fundamentals
  2. Aptitude Section: Important for overall performance
  3. Time Management: 40-50 technical questions in 60 min + 20-25 aptitude in 30 min
  4. Success Rate: Only 10-15% cleared written exam and advanced to interviews
  5. Platform: BHEL written examination
  6. Focus Areas: Power generation, thermal power plants, engineering fundamentals

BHEL 2024 interview experiences

Based on candidate experiences from 2024 BHEL interviews:

2024 Interview Process:

  1. Written Examination (90 minutes): Technical (40-50) + Aptitude (20-25)
  2. Technical Interview (60-90 minutes): Power generation concepts, thermal power plants, engineering fundamentals, problem-solving
  3. 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 BHEL’s projects and power generation programs
  • Practice explaining complex technical concepts clearly

For detailed interview experiences, visit BHEL Interview Experience page.

Preparation tips for BHEL 2024 pattern

  1. Master Technical Fundamentals: Focus on power generation, thermal power plants - study thoroughly
  2. Engineering Fundamentals: Strong understanding of engineering fundamentals relevant to power generation
  3. Practice Previous Year Papers: Solve BHEL written exam papers from 2020-2024 to understand patterns
  4. Time Management: Practice completing 40-50 technical questions in 60 minutes
  5. Aptitude Practice: Practice quantitative and logical reasoning
  6. Power Generation: Deep understanding of thermal power plants, power generation processes
  7. Problem-Solving: Practice solving complex technical problems in power generation domain
  8. Behavioral Preparation: Prepare examples using STAR format - power generation passion, problem-solving
  9. Mock Tests: Take timed practice tests to improve speed and accuracy
  10. BHEL Projects: Stay updated with BHEL’s projects and power generation programs

Comments & Suggestions

2025 papers

BHEL Technical Questions

Interview experience

Preparation guide

BHEL hub

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