| 1. | The standard SOP expression for Boolean expression AB’+ AC + BC is ? | |
|
ABC + ABC + ABC + ABC
|
||
|
ABC+ ABC + ABC
|
||
|
ABC+ ABC + ABC
|
||
|
ABC + ABC + ABC
|
||
View Answer
Discuss in Forum
Report Question| 2. | The Boolean equation F = AB+ AD + BC + CD in its POS form is ? | |
|
F (A+C) (B + D)
|
||
|
F=(A+B) (C+D)
|
||
|
F=(A+B)(B+C)
|
||
|
F=(A+B)(C+D)
|
||
| 3. | The canonical form of II(0, 3, 6, 7) is ? | |
|
?(1, 2, 4, 5)
|
||
|
(1, 2, 4, 5)
|
||
|
(0, 3, 6, 7)
|
||
|
?(0, 1, 2, 4, 5)
|
||
| 4. | The output will be a LOW for any case when one or more inputs are zero is a ? | |
|
OR gate
|
||
|
Not gate
|
||
|
AND gate
|
||
|
NAND gate
|
||
| 5. | The voltage levels for a negative logic system ? | |
|
Must necessarily be negative
|
||
|
Could be negative or positive
|
||
|
Must necessarily be positive
|
||
|
Must necessarily be either zero or-5V
|
||
| 6. | The output of an exclusive-OR gate is HIGH if ________ ? | |
|
all inputs are LOW
|
||
|
all inputs are HIGH
|
||
|
the inputs are unequal
|
||
|
none of the above
|
||
| 7. | The output of an OR gate with three inputs, A, B, and C, is LOW when ________ ? | |
|
A = 0, B = 0, C = 0
|
||
|
A = 0, B = 0, C = 1
|
||
|
A = 0, B = 1, C = 1
|
||
|
all of the above
|
||
| 8. | The output of a NAND gate is LOW if ________ ? | |
|
all inputs are LOW
|
||
|
all inputs are HIGH
|
||
|
any input is LOW
|
||
|
any input is HIGH
|
||
| 9. | Why small bubble is given on the output of the NAND gate symbol ? | |
|
Tristate
|
||
|
Output is inverted
|
||
|
Open collector output
|
||
|
None of the above
|
||
| 10. | When will be the output of an exclusive-OR gate is HIGH ? | |
|
The inputs are different
|
||
|
All inputs are LOW
|
||
|
All inputs are HIGH
|
||
|
The inputs are equal
|
||