HSC ICT Chapter 3 Board Questions with Important MCQ Solutions. I hope that solving these questions will give you a good preparation.
If A = 0 and B = 1, then AB=?
a) 0
b) 1
c) 2
d) 3
When logical multiplication of three variables A, B and C will be 1?
a) All three values are 1
b) All three values are 0
c) Any one value is 1
d) Any two values are 1
The logical sum of three variables A, B and C will be 1 if-
i. Any one of them is 1
ii. Any two of them are 1
iii. All three are 0
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
What is the function of a truth table?
a) Value determination
b) Truth checking
c) Input determination
d) Output determination
The theorem A+BC=(A+B)(A+C) is-
[Ra. Board 2017]
a) Commutative
b) Associative
c) Basic
d) Distributive
Which is the basic theorem?
[B. Board 2017]
a) A+1=A
b) A+0=A
c) A+A’=0
d) A+A=1
Which is the basic theorem of Boolean algebra?
[C. Board 2019]
a) A+1=A
b) A+A=A
c) A+0=0
d) A+A’=0
How many basic logic gates are there?
[Cu. Board 2023]
a) 2
b) 3
c) 4
d) 6
Which is not a basic gate?
[M. Board 2019]
a) OR
b) NOR
c) AND
d) NOT
The output of the OR gate will be ‘1’ if—
i. All inputs are 1
ii. Any one input is 1
iii. All inputs are 0
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
The output of AND gate will be ‘0’ if—
i. All inputs are 1
ii. Any one input is 0
iii. All inputs are 0
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Which of the following logic gates has the opposite output to its input?
[Ch. Board 2016]
a) AND
b) NAND
c) OR
d) NOT
Which logic gate acts as an inverter?
[J. Board 2023]
a) AND
b) XOR
c) OR
d) NOT
Which logic gate has the same input and output lines?
[Dha. Board, Ma. Board 2017]
a) AND
b) NAND
c) OR
d) NOT
Which is a compound gate?
a) OR
b) AND
c) NAND
d) NOT
Which one is the universal gate?
[J. Board 2017]
a) AND
b) NAND
c) XOR
d) XNOR
Which gate should be used with XOR to form XNOR gate?
a) OR
b) AND
c) NAND
d) NOT
The output of NAND gate will be ‘1’ if—
i. All inputs are 1
ii. Any one input is 0
iii. All inputs are 0
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
The output of the NOR gate will be ‘0’ if–
[Di. Board 2017]
i. Any one of the inputs is 0
ii. Any one of the inputs is 1
iii. All the inputs are 1
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
The output of the NOR gate will be ‘0’ when-
[Dha. Board 2019]
i. All inputs are 1
ii. All inputs are 0
iii. Any one input is 1
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
The output of the above figure will be-
[Cu. Board 2023]
a) AB
b) A´B
c) A´B´
d) AB´
The formula to be used to simplify this equation is-
[Cu. Board 2023]
i. A ⊕ B
ii. A´B + AB´
iii. (A ⊕ B)´
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Which gate produces 0 output when both inputs are 1?
[J. Board 2019]
i. NAND
ii. NOR
iii. XNOR
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
The output of XNOR will be ‘1’ when-
[Cu. Board 2019]
i. P=1, Q=1, R=0
ii. P=1, Q=0, R=1
iii. P=1, Q=1, R=1
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Used to make universal gates-
[Ra. Board 2023]
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
For a=1, b=0, a⊕b=?
[Cu. Board 2017]
a) 0
b) 1
c) 0,1
d) 1,0
Which gate does the above equation indicate?
[Q. Board 2019]
a) NOR
b) NAND
c) XOR
d) XNOR
The value of X will be 1 when-
[Di. Board 2023]
a) a = 0, b = 0, c = 0
b) a = 1, b = 0, c = 0
c) a = 1, b = 1, c = 0
d) a = 0, b = 1, c = 1
XOR gate is used to make-
[Ch. Board 2016]
i. OR
ii. AND
iii. NOT
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
F = X′Y + Y + X এর সরলীকৃত মান কত?
[Sy. Board 2023]
a) XY
b) X
c) X (Y + 1)
d) X + Y
Which gate will have an output of 1 if all inputs are 0?
[All. Board 2018]
i. NAND
ii. NOR
iii. XNOR
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
See the stem and answer questions 1 and 2:
1. Which gate does the truth table indicate?
a) AND
b) NAND
c) OR
d) NOR
2. Which Boolean function does the truth table represent?
a) F=A.B
b) F=(A.B)´
c) F=A+B
d) F=(A+B)´
Look at the stem and answer questions 3 and 4:
3. The output of the logic circuit will be-
a) F= A+B
b) F= AB
c) F= (A+B)´
d) F= (AB)´
4. The output of the circuit will be 1 when-
i. A=0, B=0
ii. A=1, B=0
iii. A=1, B=1
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Look at the stem and answer questions 5 and 6:
5. What is the value of Y?
[Dha. Board 2019]
6. What should be input values of A and B to get the output Y=1 of the stimulus circuit?
[Dha. Board 2019]
a) A=0 and B=0
b) A=0 and B=1
c) A=1 and B=0
d) A=1 and B=1
Look at the stem and answer questions 7 and 8:
7. Which gate is equivalent to the above diagram?
[syl. Board 2017]
a) NOT
b) AND
c) OR
d) NOR
8. The value of Y will be 1 if-
[Syl. Board 2017]
i. A=0, B=1
ii. A=0, B=0
iii. A=1, B=0
Which one is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Look at the stem and answer questions 9 and 10:
9. Which logic gate is equivalent to stimulus F?
[Raj. Board 2019]
a) OR
b) XOR
c) NAND
d) XNOR
10. The equivalent logic gate of G is used-
[Raj. Board 2019]
i. To compare the state of two bits
ii. To make a half-adder
iii. To make a counter
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Look at the stem and answer questions 11 and 12:
11. What is the value of the output F of the above figure?
[Ctg. Board 2019]
12. What will be the value of F if AND gate is used instead of OR gate in the stimulus figure?
[Ctg. Board 2019]
a) A
b) B
c) 0
d) 1
Look at the stimulus circuit and answer questions 13 and 14:
13. What is the value of F?
[All Boards 2018]
a) AB
b) A’B
c) AB’
d) A’B’
14. Which gate will replace XNOR and the output will be 0?
[All Boards 2018]
a) AND
b) OR
c) NAND
d) NOR
Look at the stimulus circuit and answer questions 15 and 16:
15. What is the value of P?
[Sly. Board 2019]
a) A+B
b) A’+B
c) A+B’
d) A’+B’
16. P=0 of the stem when-
[Sly. Board 2019]
a) A=0, B=0
b) A=0, B=1
c) A=1, B=0
d) A=1, B=1
Look at the stimulus table and answer question 17:
|
Input |
Output |
|
|
A |
B | X |
|
0 |
0 |
0 |
|
0 |
1 |
1 |
|
1 |
0 |
1 |
| 1 | 1 |
0 |
17. Which gate does the above truth table indicate?
[Dha. Board 2023]
a) NOR
b) EX-OR
c) EX-NOR
d) NAND
Look at the figure and answer questions 18 and 19:
18. What is the value of Y?
[Dha. Board 2023]
a) A+B
b) (AB)’
c) (A+B)’
d) A⊕B
19. To get the output Y=1 of the stimulus circuit, what are the inputs of A and B?
[Dha. Board 2023]
a) A=0 and B=0
b) A=0 and B=1
c) A=1 and B=0
d) A=1 and B=1
Look at the figure and answer questions 20 and 21:
20. The value of X will be-
[M. Board 2023]
a) A’+B’+C’
b) A+B+C
c) A+BC
d) AB+C
21. What is the output if A=0, B=1, C=1?
[M. Board 2023]
a) 0
b) 1
c) 2
d) 3
Look at the circuit and answer questions 22 and 23:
22. Y of the stem can be-
[Raj. Board 2023]
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
23. The output of the circuit will be Y = 0, when –
[Raj. Board 2023]
a) NOR gate instead of gate 1 and 2
b) NAND gate instead of gate 3
c) AND gate instead of gate 4
d) NAND gate will be used instead of gate 5
Look at the picture and answer questions 24 and 25:
24. What is the simplified value of F?
[Di. Board 2023]
a) P⊕Q
b) (P⊕Q)’
c) P+Q
d) P’+Q’
25. How many basic gates can be used to implement the simplified value of F?
[Di. Board 2023]
a) 2
b) 3
c) 4
d) 5
Look at the picture and answer questions 26 and 27:
26. The value of Y will be-
[Ctg. Board 2023]
a) A’+B
b) AB’
c) A+B’
d) AB’
27. What are the values of A and B so that Y = 1?
[Ctg. Board 2023]
i. A = 0, B = 0
ii. A = 1, B = 0
iii. A = 0, B = 1
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Look at the picture and answer questions 28 and 29:
28. Which gate does the above logic circuit represent?
[Sly. Board 2023]
a) AND
b) OR
c) NOR
d) NAND
29. When will the light turn on in the case of NAND?
[Sly. Board 2023]
i. A = 0, B = 0
ii. A = 1, B = 0
iii. A = 1, B = 1
Which of the following is correct?
a) i and ii b) i and iii
c) ii and iii d) i, ii and iii
Look at the picture and answer questions 30 and 31:
30. The output equation of the logic circuit of stem is equivalent to which gate?
[Jess. Board 2023]
a) NAND
b) NOR
c) X-OR
d) X-NOR
31. When will X=1 if the inputs of the circuit are A, B and C?
[Jess. Board 2023]
a) A = 0, B = 0, C = 0
b) A = 0, B = 0, C = 1
c) A = 0, B = 1, C = 0
d) A = 1, B = 0, C = 0
Look at the picture and answer questions 32 and 33:
32. The gate indicated by the truth table of the stimulus is-
[Ba. Board 2023]
a) NOR
b) NAND
c) XOR
d) XNOR
33. The gate that will indicate the stem if the value of Y is 0, 1, 1, 0 is –
[Ba. Board 2023]
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- Mizanur Rahman (Mizan)
- Lecturer in ICT, Shaheed Bir Uttam Lt. Anwar Girls’ College , Dhaka Cantonment
- Founder & Author at www.edupointbd.com
- Software Engineer at mands IT
- Former Lecturer in ICT, Cambrian College, Dhaka
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