GATE/NET Digital Logic Design Practice Test Set5
Q21➡ |
Consider the following circuit
The function by the network above is |
| i ➥ (AB)’E + EF + (CD)’F |
| ii ➥ (E’ + ABF’)(C+D+F’) |
| iii ➥ ((AB)’+E)(E’+F’)(C+D+F’) |
| iv ➥ (A+B)E’ + (EF)’ + CDF’ |
Q22➡ |
Given following equation:
(142)b + (112)b-2 = (75)8. Find base b. |
| i ➥ 3 |
| ii ➥ 6 |
| iii ➥ 7 |
| iv ➥ 5 |
Q23➡ |
The equivalent hexadecimal notation for octal number 2550276 is: |
| i ➥ FADED |
| ii ➥ AEOBE |
| iii ➥ ADOBE |
| iv ➥ ACABE |
Q24➡ |
How many bit strings of length ten either start with a 1 bit or end with two bits 00? |
| i ➥ 320 |
| ii ➥ 480 |
| iii ➥ 640 |
| iv ➥ 768 |
Q25➡ |
The output of the following combinational circuit.
 |
| i ➥ X.Y |
| ii ➥ X+Y |
| iii ➥ X⊕Y |
| iv ➥ (X⊕Y)’ |
21.(ii)
22.(ii)
23.(iii)
24.(iii)
25.(iv)
21)D
22)D
23)C
24)C
25)D
21, IV
22, IV
23, iii
24, iii
25, IV
Ans21-iii
Ans22-iv
Ans23-iii
Ans24-
Ans25-iv
2-iv
3-iii
6-ii
7-i
8-i
9-iv
11-ii
13-ii
14-ii
15-iv
17-i
18-ii
19-iii
20-ii
21-iii
22-iv
23-iii
24-iii
25-iv