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Home ‣ Digital Electronics ‣ Multivibrators and 555 Timer See What Others Are Saying!
- Question
When extremely critical timing is required, a quartz crystal can be used.
Options- A. True
- B. False
- Correct Answer
- True
- 1. A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n):
Options- A. Ex-NOR gate
- B. OR gate
- C. Ex-OR gate
- D. NAND gate Discuss
- 2. Schottky logic overcomes the saturation and stored charge problem by placing a Schottky diode across the base-to-collector junction.
Options- A. True
- B. False Discuss
- 3. Is the circuit given below an astable multivibrator or a monostable multivibrator?
Options- A. monostable
- B. astable Discuss
- 4. What is another name for a bistable multivibrator?
Options- A. an on-off switch
- B. an oscillator
- C. a flip-flop Discuss
- 5. Which of the following gates has the exact inverse output of the OR gate for all possible input combinations?
Options- A. NOR
- B. NOT
- C. NAND
- D. AND Discuss
- 6. The noise margin for TTL is 0.8 V.
Options- A. True
- B. False Discuss
- 7. The storage capacity of a register makes it an important type of memory.
Options- A. True
- B. False Discuss
- 8. A DAC is ________ if its output increases as the binary input increments from one value to the next.
Options- A. monotonic
- B. self adjusting
- C. accurate
- D. broken Discuss
- 9. An astable 555 timer has the following number of stable states:
Options- A. 0
- B. 1
- C. 2
- D. 3 Discuss
- 10. Two characteristics of ideal operational amplifiers are very high input impedance and very high voltage gain.
Options- A. True
- B. False Discuss
More questions
Correct Answer: Ex-OR gate
Correct Answer: True
Correct Answer: monostable
Correct Answer: a flip-flop
Correct Answer: NOR
Correct Answer: False
Correct Answer: True
Correct Answer: monotonic
Correct Answer: 0
Correct Answer: True
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