Number Systems and Codes problems
- 1. 3428 is the decimal value for which of the following binary coded decimal (BCD) groupings?
Options- A. 11010001001000
- B. 11010000101000
- C. 011010010000010
- D. 110100001101010 Discuss
Correct Answer: 11010000101000
- 2. What is the decimal value of the hexadecimal number 777?
Options- A. 191
- B. 1911
- C. 19
- D. 19111 Discuss
Correct Answer: 1911
- 3. Convert the binary number 1001.0010 to decimal.
Options- A. 125
- B. 12.5
- C. 90.125
- D. 9.125 Discuss
Correct Answer: 9.125
- 4. The weight of the LSB as a binary number is:
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
Correct Answer: 1
- 5. What is the result when a decimal 5238 is converted to base 16?
Options- A. 327.375
- B. 12166
- C. 1388
- D. 1476 Discuss
Correct Answer: 1476
- 6. Convert the decimal number 151.75 to binary.
Options- A. 10000111.11
- B. 11010011.01
- C. 00111100.00
- D. 10010111.11 Discuss
Correct Answer: 10010111.11
- 7. The number of bits used to store a BCD digit is:
Options- A. 8
- B. 4
- C. 1
- D. 2 Discuss
Correct Answer: 4
- 8. Base 10 refers to which number system?
Options- A. binary coded decimal
- B. decimal
- C. octal
- D. hexadecimal Discuss
Correct Answer: decimal
- 9. Sample-and-hold circuits in ADCs are designed to:
Options- A. sample and hold the output of the binary counter during the conversion process
- B. stabilize the ADCs threshold voltage during the conversion process
- C. stabilize the input analog signal during the conversion process
- D. sample and hold the ADC staircase waveform during the conversion process Discuss
Correct Answer: stabilize the input analog signal during the conversion process
- 10. Convert the binary number 1011010 to hexadecimal.
Options- A. 5B
- B. 5F
- C. 5A
- D. 5C Discuss
Correct Answer: 5A
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