GATE/NET Digital Logic Design Practice Test Set2
| Q6➡ | Simplified expression/s for following Boolean function F(A,B,C,D)=Σ(0,1,2,3,6,12,13,14,15) is/are A)A’B’+AB+A’C’D’ B) A’B’+AB+A’CD’ C) A’B’+AB+BC’D’ D) A’B’+AB+BCD’ Choose the correct answer from the options given below: |
| i ➥ (A) only |
| ii ➥ (B) only |
| iii ➥ (A) and (B) only |
| iv ➥ (B) and (D) only |
| Q7➡ | Simplify the following Boolean function using four-variable Karnaugh maps. F(A,B,C,D)=Σ(3,7,11, 13, 14, 15) |
| i ➥ CD + ABC + ABD |
| ii ➥ ACD + BCD + ABC + ABD |
| iii ➥ ABC’D + ABC + CD |
| iv ➥ None of the above. |
| Q8➡ | What is the radix of the numbers if the solutions to the quadratic equation x2 -10x + 31=0 are x=5 and x=8? |
| i ➥ 11 |
| ii ➥ 13 |
| iii ➥ 10 |
| iv ➥ 21 |
| Q9➡ | Convert FAFAFA in hexadecimal into octal. |
| i ➥ 76767676 |
| ii ➥ 76737672 |
| iii ➥ 76727672 |
| iv ➥ 76575372 |
| Q10➡ | The hexadecimal equivalence of the hexadecimal IEEE format floating point number 0xC20F0000 is |
| i ➥ 35.25 |
| ii ➥ 35.25 |
| iii ➥ 35.75 |
| iv ➥ -35.75 |
6. (iv)
7.(i)
8.(ii)
9.(iv)
10. (iv)
6) D
7) A
8)B
9)D
10)C
6, IV
7, iii
8, ii
9, IV
10, iii
Ans6-iv
Ans7-i
Ans8-ii
Ans9-iv
Ans10-iv