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- Question
The fast carry or look-ahead carry circuits found in most 4-bit parallel-adder circuits:
Options- A. increase ripple delay
- B. add a 1 to complemented inputs
- C. reduce propagation delay
- D. determine sign and magnitude
- Correct Answer
- reduce propagation delay
- 1. Adding the two's complement of ?11 + (?2) will yield which two's complement answer?
Options- A. 1110 1101
- B. 1111 1001
- C. 1111 0011
- D. 1110 1001 Discuss
- 2. Use the two's complement system to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.
Options- A. ?14 and ?13; ?27
- B. ?113 and ?114; 227
- C. ?27 and ?13; 40
- D. ?11 and ?16; ?27 Discuss
- 3. When both inputs of a J-K flip-flop cycle, the output will:
Options- A. be invalid
- B. not change
- C. change
- D. toggle Discuss
- 4. Which of the following describes the operation of a positive edge-triggered D-type flip-flop?
Options- A. If both inputs are HIGH, the output will toggle.
- B. The output will follow the input on the leading edge of the clock.
- C. When both inputs are LOW, an invalid state exists.
- D. The input is toggled into the flip-flop on the leading edge of the clock and is passed to the output on the trailing edge of the clock. Discuss
- 5. Which of the following is correct for a gated D-type flip-flop?
Options- A. The Q output is either SET or RESET as soon as the D input goes HIGH or LOW.
- B. The output complement follows the input when enabled.
- C. Only one of the inputs can be HIGH at a time.
- D. The output toggles if one of the inputs is held HIGH. Discuss
- 6. Adding in binary, the decimal values 26 + 27 will produce a sum of:
Options- A. 111010
- B. 110110
- C. 110101
- D. 101011 Discuss
- 7. The two's complement system is to be used to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.
Options- A. ?14 and ?13; ?27
- B. ?113 and ?114; 227
- C. ?27 and ?13; 40
- D. ?11 and ?16; ?27 Discuss
- 8. When 1100010 is divided by 0101, what will be the decimal remainder?
Options- A. 2
- B. 3
- C. 4
- D. 6 Discuss
- 9. The selector inputs to an arithmetic-logic unit (ALU) determine the:
Options- A. selection of the IC
- B. arithmetic or logic function
- C. data word selection
- D. clock frequency to be used Discuss
- 10. Binary subtraction of a decimal 15 from 43 will utilize which two's complement?
Options- A. 101011
- B. 110000
- C. 011100
- D. 110001 Discuss
Arithmetic Operations and Circuits problems
Search Results
Correct Answer: 1111 0011
Correct Answer: ?14 and ?13; ?27
Correct Answer: not change
Correct Answer: The output will follow the input on the leading edge of the clock.
Correct Answer: The Q output is either SET or RESET as soon as the D input goes HIGH or LOW.
Correct Answer: 110101
Correct Answer: ?14 and ?13; ?27
Correct Answer: 3
Correct Answer: arithmetic or logic function
Correct Answer: 110001
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