1. Match the logic gates in Column A with their equivalents in Column B.

a. P – 2, Q – 4, R – 1, S – 3
b. P – 4, Q – 2, R – 1, S – 3
c. P – 2, Q – 4, R – 3, S – 1
d. P – 4, Q – 2, R – 3, S – 1
Solution :
https://www.youtube.com/watch?v=dkREztdPw8E
2. For the output F to be 1 in the logic circuit shown, the input combination should be

a. A = 1, B = 1, C = 0
b. A = 1, B = 0, C = 0
c. A = 0, B = 1, C = 0
d. A = 0, B = 0, C = 1
Solution :
https://www.youtube.com/watch?v=pQAOPtOwtBk
3. In the circuit shown, the device connected to Y5 can have address in the range

a. 2000 – 20FF
b. 2D00 – 2DFF
c. 2E00 – 2EFF
d. FD00 – FDFF
Solution :
https://www.youtube.com/watch?v=5P58M5A7t2U
4. Assuming that all flip-flops are in reset condition initially, the count sequence observed at QA in the circuit shown is

a. 0010111….
b. 0001011….
c. 0101111….
d. 0110100….
Solution :
https://www.youtube.com/watch?v=UsicxIAMqx0
5. The Boolean function realized by the logic circuit shown is

a. F = ∑m(0,1,3,5,9,10,14)
b. F = ∑m(2,3,5,7,8,12,13)
c. F = ∑m(1,2,4,5,11,14,15)
d. F = ∑m(2,3,5,7,8,9,12)
Solution :
https://www.youtube.com/watch?v=pOgzYeepujg
6. For the 8085 assembly language program given below, the content of the accumulator after the execution of the program is
3000 MVI A, 45H
3002 MOV B, A
3003 STC
3004 CMC
3005 RAR
3006 XRA B
a. 00H
b. 45H
c. 67H
d. E7H
Solution :
https://www.youtube.com/watch?v=NSdbNs_Oiwk

a. P – 2, Q – 4, R – 1, S – 3
b. P – 4, Q – 2, R – 1, S – 3
c. P – 2, Q – 4, R – 3, S – 1
d. P – 4, Q – 2, R – 3, S – 1
2. For the output F to be 1 in the logic circuit shown, the input combination should be

a. A = 1, B = 1, C = 0
b. A = 1, B = 0, C = 0
c. A = 0, B = 1, C = 0
d. A = 0, B = 0, C = 1
3. In the circuit shown, the device connected to Y5 can have address in the range

a. 2000 – 20FF
b. 2D00 – 2DFF
c. 2E00 – 2EFF
d. FD00 – FDFF
4. Assuming that all flip-flops are in reset condition initially, the count sequence observed at QA in the circuit shown is

a. 0010111….
b. 0001011….
c. 0101111….
d. 0110100….
5. The Boolean function realized by the logic circuit shown is

a. F = ∑m(0,1,3,5,9,10,14)
b. F = ∑m(2,3,5,7,8,12,13)
c. F = ∑m(1,2,4,5,11,14,15)
d. F = ∑m(2,3,5,7,8,9,12)
6. For the 8085 assembly language program given below, the content of the accumulator after the execution of the program is
3000 MVI A, 45H
3002 MOV B, A
3003 STC
3004 CMC
3005 RAR
3006 XRA B
a. 00H
b. 45H
c. 67H
d. E7H
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