Digital Electronics - Logic Gates
Exercise :: Logic Gates - General Questions
11. |
TTL operates from a ________. |
A. |
9-volt supply | B. |
3-volt supply | C. |
12-volt supply | D. |
5-volt supply |
Answer: Option D
Explanation:
|
12. |
The output of a NOR gate is HIGH if ________. |
A. |
all inputs are HIGH | B. |
any input is HIGH | C. |
any input is LOW | D. |
all inputs are LOW |
Answer: Option D
Explanation:
|
13. |
The switching speed of CMOS is now ________. |
A. |
competitive with TTL | B. |
three times that of TTL | C. |
slower than TTL | D. |
twice that of TTL |
Answer: Option A
Explanation:
|
14. |
The format used to present the logic output for the various combinations of logic inputs to a gate is called a(n): |
A. |
Boolean constant | B. |
Boolean variable | C. |
truth table | D. |
input logic function |
Answer: Option C
Explanation:
|
15. |
The power dissipation, PD, of a logic gate is the product of the ________. |
A. |
dc supply voltage and the peak current | B. |
dc supply voltage and the average supply current | C. |
ac supply voltage and the peak current | D. |
ac supply voltage and the average supply current |
Answer: Option B
Explanation:
|