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FreePrevious Year Paper· 2025

BEL PE Computer Science PYQ, 20 Dec 2025 (5:00 PM)

Attempt BEL PE Computer Science PYQ, 20 Dec 2025 (5:00 PM) online for free with the official answer key: 124 questions, 120 minutes, 1/4 negative marking. Questions with instant score, all-India rank and detailed solutions on UTpaper.

  • 124 Questions
  • 124 Marks
  • 120 Minutes
  • English
Attempt test free →Questions with answers

About BEL PE Computer Science PYQ, 20 Dec 2025 (5:00 PM)

This is the actual BEL PE Computer Science PYQ, 20 Dec 2025 (5:00 PM) converted into an online test with the official answer key. Attempt it with the real time limit of 120 minutes to see exactly how you would score in the BEL PE exam, then go through the solutions to fix weak topics. It is one of 2 free tests in the BEL Probationary Engineer (Computer Science) Previous Year Papers.

Section-wise pattern

SectionQuestionsMarksCounts for merit?
General Aptitude1111Yes
Reasoning1313Yes
Computer Science100100Yes

Sample questions from this test

Q25
Convert the octal number (7356.47)₈ into its binary and decimal equivalent, and identify which of the following decimal values is correct.
  1. A(3814.609375)₁₀
  2. B(3774.59375)₁₀
  3. C(3846.59375)₁₀
  4. D(3822.609375)₁₀
Show answer
Q26
Consider the following pseudo-code: Algorithm TestComplexity(A[1..n]) 1. sum ← 0 2. for i ← 1 to n do 3. for j ← 1 to i do 4. for k ← 1 to j do 5. sum ← sum + 1 6. return sum What is the asymptotic time complexity of the above algorithm?
  1. AO(n⁴)
  2. BO(n³)
  3. CO(n log n)
  4. DO(n²)
Show answer
Q27
A data analyst is using supervised machine learning to study the relationship between advertising budget (in ₹) and sales revenue (in ₹) for a retail company. He uses linear regression to predict sales based on the advertising budget. Later, he wants to predict whether a customer will make a purchase (Yes/No) based on features like age, income and browsing time. Which of the following statements correctly distinguishes regression from classification in these contexts?
  1. ARegression models cannot be used for numerical data, whereas classification models can.
  2. BRegression minimises the difference between predicted and actual class labels, while classification minimises the mean squared error.
  3. CRegression uses continuous dependent variables, while classification uses discrete dependent variables.
  4. DRegression predicts categorical outputs, while classification predicts numerical values.
Show answer
Q28
For the grammar below, what is FIRST(S)? S → aA | bB
  1. A{a}
  2. B{b}
  3. C{a, b}
  4. D{ε}
Show answer
Q29
During lexical analysis, which component is primarily responsible for recognising tokens from the input stream of characters?
  1. AParser, using syntax-directed translation rules
  2. BFinite automaton, driven by regular expressions for token patterns
  3. CSemantic analyzer, based on attribute grammars
  4. DSymbol table manager, by assigning identifiers unique addresses
Show answer

Attempt the full test to answer all 124 questions under the real time limit, or read all 124 questions with answers.

How to attempt

  1. Click “Attempt test free” and sign in with Google or your UTpaper account.
  2. The timer starts at 120 minutes. Use the question palette to move between questions and mark questions for review.
  3. Submit when done. You get your score, accuracy, section-wise marks and all-India rank instantly, with the solution for every question.

Frequently asked questions

Is the BEL PE Computer Science PYQ, 20 Dec 2025 (5:00 PM) free to attempt?
Yes. The test is completely free on UTpaper. Sign in with Google or create a free account, click Attempt test, and your score, rank and solutions appear as soon as you submit.
How many questions and how much time does this test have?
The test has 124 questions for 124 marks and must be finished in 120 minutes. Each wrong answer deducts 1/4 mark.
Are the answers in this BEL PE previous year paper official?
Yes. The answer key follows the official final answer key released by the exam board. Where an official answer is debatable, the explanation says so.
What are the sections in this test?
The test has 3 sections: General Aptitude (11 questions), Reasoning (13 questions) and Computer Science (100 questions).
Can I reattempt the test and see solutions?
Yes. After submitting you see the correct answer and explanation for every question, your accuracy, section-wise marks and all-India rank. You can reattempt as many times as you like.

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