BTechibtechi.in
Loading Loading
Free IIT Madras BS notes, PYQs and mock tests at btechi.in

C Programming · Computer basics & number systems

10 questions · 31 marks · 3 papers

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

Programming in C

Computer basics & number systems

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
MCQ: Exactly 1 option is correct. Negative marking applies.
MSQ: One or more options correct. Select all to score.
NAT: Numerical response. No negative marking.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

Quiz 1 · 26 Oct 2025 (AN)Quiz 1

Q1MCQ2 Marks·Choose one option
Key ↓
Which of the following correctly ranks the memory units from fastest to slowest access time?
1. ACache → Registers → RAM → Hard Disk → Optical Disk
2. BRegisters → Cache → RAM → SSD → Hard Disk
3. CRAM → Registers → Cache → SSD → Hard Disk
4. DRegisters → RAM → Cache → HDD → SSD
Q2MCQ2 Marks·Choose one option
Key ↓
In an N-bit signed integer representation using 2’s complement, what is the range of values?
1. A
2. B
3. C
4. D
Q3MCQ3 Marks·Choose one option
Key ↓
The decimal number 2748 is represented in hexadecimal as:
1. A0xABC
2. B0xABD
3. C0xABE
4. D0xABF
Q4MCQ3 Marks·Choose one option
Key ↓
What is the minimum number of bits required to represent all integer values from −120 to +120 in a signed binary representation?
1. A5 Bits
2. B6 bits
3. C7 bits
4. D8 bits
5. E9 bits
Q5MCQ4 Marks·Choose one option
Key ↓
1. ASum of first N natural numbers
2. BSum of squares of first N natural numbers
3. CSum of cubes of first N natural numbers
4. DFactorial of N
Q6MSQ2 Marks·Choose all correct options
Key ↓
Which of the following are key functions of the Arithmetic Logic Unit (ALU)?
1. AAddition and subtraction
2. BLogical comparisons (>, <, =)
3. CMemory storage management
4. DMultiplication and division
5. EInstruction decoding
Q7NAT3 Marks·Write the number
Key ↓
Your answer:
Q8NAT4 Marks·Write the number
Key ↓
Your answer:

End Term · 31 Aug 2025 (FN)End Term

Q9MCQ4 Marks·Choose one option
Asked 2 times Key ↓
1. A
2. B
3. C
4. D

End Term · 31 Aug 2025 (AN)End Term

Q10MCQ4 Marks·Choose one option
Asked 2 times Key ↓
1. A
2. B
3. C
4. D

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q1B

Q2A

Q3A

Q4D

Q5B

Q6A, B, D

Q713

Q85

Q9B

Q10A

Questions and answer keys are reproduced from the official IIT Madras BS papers. Topics and repeated question types are BTechi’s own grouping. BTechi is not affiliated with IIT Madras.