Chapter 2: Number Systems — Online MCQ Test
COMPUTER SCIENCE · CLASS 11th · Tamil Nadu State Board
Practice Chapter 2: Number Systems with a free chapter-wise online MCQ test.
This chapter covers: Focusing on digital data representation this chapter covers binary octal decimal and hexadecimal conversions. Students master binary arithmetic signed number representations and ch....
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Chapter 2: Number Systems — Important Questions & Answers
What is the base of the Hexadecimal number system?
- A. 8
- B. 10
- C. 16
- D. 2
Answer: C. 16
The Hexadecimal system uses 16 symbols ranging from 0-9 and A-F.
The Hexadecimal system uses 16 symbols ranging from 0-9 and A-F.
Which of the following is the most significant digit in the number 456?
- A. 6
- B. 5
- C. 4
- D. None of these
Answer: C. 4
The most significant digit (MSD) is the leftmost digit, which holds the highest place value.
The most significant digit (MSD) is the leftmost digit, which holds the highest place value.
Convert the decimal number 10 into binary.
- A. 1000
- B. 1010
- C. 1100
- D. 1001
Answer: B. 1010
Dividing 10 by 2 repeatedly gives a remainder sequence of 0, 1, 0, 1, which read bottom-up is 1010.
Dividing 10 by 2 repeatedly gives a remainder sequence of 0, 1, 0, 1, which read bottom-up is 1010.
Identify the octal equivalent of the binary number 101110.
- A. 46
- B. 56
- C. 64
- D. 54
Answer: B. 56
Grouping bits into threes from the right: (101) = 5 and (110) = 6, resulting in 56.
Grouping bits into threes from the right: (101) = 5 and (110) = 6, resulting in 56.
If a number system has a radix r, the digits range from:
- A. 1 to r
- B. 0 to r
- C. 0 to r-1
- D. 1 to r-1
Answer: C. 0 to r-1
Any number system with base (radix) r uses digits from 0 up to r-1.
Any number system with base (radix) r uses digits from 0 up to r-1.