Arithmetic Operations and Circuits problems
- 1. The range of an 8-bit two's complement word is from:
Options- A. +12810 to ?12810
- B. ?12810 to +12710
- C. +12810 to ?12710
- D. +12710 to ?12710 Discuss
Correct Answer: ?12810 to +12710
- 2. How many basic binary subtraction operations are possible?
Options- A. 4
- B. 3
- C. 2
- D. 1 Also asked in: AIEEE, Bank Exams, CAT, GATE, GRE, Bank Clerk, Bank PO
Correct Answer: 1
- 3. How many basic binary subtraction combinations are possible?
Options- A. 4
- B. 3
- C. 2
- D. 1 Also asked in: GATE, CAT, Bank Exams, AIEEE, Bank PO, Bank Clerk
Correct Answer: 4
- 4. Two half adders can be combined to form a full adder with no additional gates.
Options- A. True
- B. False Discuss
Correct Answer: False
- 5. A technique to speed parallel addition by eliminating the delay caused by the carry bit propagation is called fast carry, or look-ahead carry.
Options- A. True
- B. False Discuss
Correct Answer: True
- 6. Signed binary numbers have one bit that represents the sign, with the remaining bits representing the magnitude.
Options- A. True
- B. False Discuss
Correct Answer: True
- 7. If you borrow from a position that contains a 0, you must borrow from the more significant bit that contains a 1. All 0s up to that point become 1s, and the digit last borrowed from becomes a 0.
Options- A. True
- B. False Discuss
Correct Answer: True
- 8. Using the two's complement number system we can add numbers with like signs and obtain the correct result.
Options- A. True
- B. False Discuss
Correct Answer: False
- 9. End around carry is an operation in 1's complement subtraction where a 1 is added to the sum of the 1's complement of both numbers.
Options- A. True
- B. False Discuss
Correct Answer: False
- 10. A full adder adds three bits, a half adder adds 1-1/2 bits.
Options- A. True
- B. False Discuss
Correct Answer: False
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