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- 1. Multiple Choice
SIMPLIFY THE FOLLOWING BOOLEAN EXPRESSION
1
0
A
A'
- 2. Multiple Choice
FIND THE HAMMING CODE FOR 7-BIT DATA
1 0 0 1 1 0 1 (EVEN PARITY)
1 0 1 0
0 1 0 1
0 1 1 0
0 1 1 1
- 3. Multiple Choice
CONVERT THE GIVEN GRAY CODE TO DECIMAL
1 0 1 1 0 0 1 0
202
220
222
221
- 4. Multiple Choice
A final product of a plant is checked on two parameters: weight and size, using three sensors S1, S2, and S3. If weight is not up to acceptable limit, then S1=1, if diameter is below the limit S2=1 and S3=1 for diameter higher than the limit. The product is rejected if it is too large or both too small and too light. The rejection function R can be related as
R = S1+S2+S3
R = S1.S2.S3
R = S1+S2.S3
R = S1.S2+S3
- 5. Multiple Choice
DETERMINE WHICH OF THE FOLLOWING EXPRESSIONS ARE EQUIVALENT TO
A⊙B
A' ⊕ B
A' ⊙ B
A ⊙ B'
A' ⊕ B'
- 6. Multiple Choice
The value of base x, if (211) base x = (152) base 8:
x = 4
x = 3
x = 7
x = 5
- 7. Multiple Choice
WHAT MUST BE THE INPUT GIVEN TO 'R'
WHEN SR FLIPFLOP IS CONVERTED TO JK
JQ'
JQ
KQ
K'Q
- 8. Multiple Choice
FIND THE MINTERMS AND MAXTERMS FOR THE EQUATION
MINTERMS:125
MAXTERMS:03467
MINTERMS:135
MAXTERMS:02467
MINTERMS:124
MAXTERMS:03567
MINTERMS:136
MAXTERMS:02457
- 9. Multiple Choice
One of most desired feature for a digital design used in VLSI circuits is:
SCALABILITY
Low complexity
High thermal dissipation
Low power dissipation
- 10. Multiple Choice
SIMPLIFY THE FOLLOWING BOOLEAN EXPRESSION
1
B
0
B'
- 11. Multiple Choice
- 12. Multiple Choice
WHAT IS THE CHARACTERISTIC EQUATION OF JK FLIPFLOP
- 13. Multiple Choice
The propagation delay in n-bit Ripple carry Adder is:
n^2 times (propagation delay of one full adder)
n times (propagation delay of one full adder)
propagation delay of one full adder
n/2 times (propagation delay of one full adder)
- 14. Multiple Choice
How many errors can the Digital Electronics parity method can find in a single word?
Single error
Double error
Triple error
Multiple errors
- 15. Multiple Choice
CONVERT THE FOLLOWING SOP EQUATION TO AN EQUIVALENT EQUATION
ABC+AB'C'+AB'C+ABC'+A'B'C
(A'+B'+C')(A+B+C')(A'+B+C)
(A+B+C)(A+B'+C)(A+B'+C')
(A'+B'+C')(A+B'+C)(A+B'+C')
(A'+B'+C')(A'+B+C')(A'+B'+C)
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