Discussion
Home ‣ Digital Electronics ‣ Digital System Projects Using HDL See What Others Are Saying!
- Question
In a frequency counter, what happens at high frequencies when the sampling interval is too long?
Options- A. The counter works fine.
- B. The counter undercounts the frequency.
- C. The measurement is less precise.
- D. The counter overflows.
- Correct Answer
- The counter overflows.
- 1. The output pulse width of a 555 monostable circuit with R1 = 4.7 kΩ and C1 = 47 µF is ________.
Options- A. 24 s
- B. 24 ms
- C. 243 ms
- D. 243 µs Discuss
- 2. What is the minimum voltage required before a diode will allow current to flow between the cathode and the anode?
Options- A. 0.7 V
- B. 0.07 V
- C. 4.3 V
- D. 0.2 V Discuss
- 3. 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 Discuss
- 4. When a computer is executing a program of instructions, the CPU continually fetches information from those locations in memory that contain (1) the program codes representing the operations to be performed and (2) the data to be operated upon.
Options- A. True
- B. False Discuss
- 5. Usually P-MOS and N-MOS circuits are identical with the exception of the voltage polarities.
Options- A. True
- B. False Discuss
- 6. Convert the following decimal number to 8-bit binary.
187
Options- A. 101110112
- B. 110111012
- C. 101111012
- D. 101111002 Discuss
- 7. The primary advantage of the hexadecimal number system is the ease with which conversion can be made between binary and hexadecimal numbers.
Options- A. True
- B. False Discuss
- 8. Different instruction sets must make up for the various members of the 8051 family.
Options- A. True
- B. False Discuss
- 9. A complex programmable logic device that consists of multiple SPLD arrays with programmable interconnections is called a ________.
Options- A. bed-of-nails
- B. boundary scan
- C. CLB
- D. CPLD Discuss
- 10. One advantage of analog circuits over digital circuits is that it's easier to store data.
Options- A. True
- B. False Discuss
More questions
Correct Answer: 243 ms
Correct Answer: 0.7 V
Correct Answer: the two inputs are unequal
Correct Answer: True
Correct Answer: True
Correct Answer: 101110112
Correct Answer: True
Correct Answer: False
Correct Answer: CPLD
Correct Answer: False
Comments
There are no comments.More in Digital Electronics:
Programming
Copyright ©CuriousTab. All rights reserved.