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- Question
The output of an XOR gate is HIGH only when ________.
Options- A. both inputs = 0
- B. both inputs = 1
- C. the two inputs are unequal
- D. both inputs are undefined
- Correct Answer
- the two inputs are unequal
- 1. A 2-input gate that can be used to pass a digital waveform unchanged at certain times and inverted at other times is a(n) ________.
Options- A. AND gate
- B. OR gate
- C. NAND gate
- D. XOR gate Discuss
- 2. If A is LOW or B is LOW or BOTH are LOW, then X is LOW. If A is HIGH and B is HIGH, then X is HIGH. These rules specify the operation of a(n) ________.
Options- A. AND gate
- B. OR gate
- C. NAND gate
- D. XOR gate Discuss
- 3. The number of input combinations for a 4-input gate is ________.
Options- A. 9
- B. 8
- C. 15
- D. 16 Discuss
- 4. A major advantage of ECL logic over TTL and CMOS is ________.
Options- A. low power dissipation
- B. high speed
- C. both low power dissipation and high speed
- D. neither low power dissipation nor high speed Discuss
- 5. When does the output of a NAND gate = 1?
Options- A. Whenever a 0 is present at an input
- B. Only when all inputs = 0
- C. Whenever a 1 is present at an input
- D. Only when all inputs = 1 Discuss
- 6. The process of reduction or simplification of combinational logic circuits increases the cost of the circuit.
Options- A. True
- B. False Discuss
- 7. By applying De Morgan's theorem to a NOR gate, two identical truth tables can be produced.
Options- A. True
- B. False Discuss
- 8. The OR function is Boolean multiplication and the AND function is Boolean addition.
Options- A. True
- B. False Discuss
- 9. CPLD software can be used to design original circuits that prove the Boolean rules and laws.
Options- A. True
- B. False Discuss
- 10. In the commutative law, in ORing and ANDing of two variables, the order in which the variables are ORed or ANDed makes no difference.
Options- A. True
- B. False Discuss
Logic Gates problems
Search Results
Correct Answer: XOR gate
Correct Answer: AND gate
Correct Answer: 16
Correct Answer: high speed
Correct Answer: Whenever a 0 is present at an input
Correct Answer: False
Correct Answer: True
Correct Answer: False
Correct Answer: True
Correct Answer: True
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