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Q1. Binary means _
(A) Three
(B) Four
(C) Ten
(D) Two
Answer:(D) Two
Q2. An inverter is also called a _ gate.
(A) NOT
(B) OR
(C) AND
(D) NAND
Answer: (A) NOT
Q3. The functional capacity of SSI devices is
(A) 1 to 11 gates
(B) 12 to 99 gates
(C) 100 to 10,000 gates
(D) More than 10,000 gates
Answer: (A) 1 to 11 gates
Q4. The functional difference between SR flip-flop and JK flip-flop is that
(A) JK flip-flop is faster than SR flip-flop
(B) JK flip-flop has a feedback path
(C) JK flip-flop accepts both inputs 1
(D) JK flip-flop does not require external clock
Answer: (C) JK flip-flop accepts both inputs 1
Q5. One way to simplify the sum-of-products equation is to use boolean algebra. Another way is the _ map.
(A) De Morgan
(B) Standard
(C) Schottky
(D) Karnaugh
Answer: (D) Karnaugh
Q6. How many bits are required to encode all twenty six letters ten symbols, and ten numerals?
(A) 2
(B) 3
(C) 5
(D) 6
Answer: (D) 6
Q7. Which of the following electronic component is not found in ordinary ICs?
(A) Diodes
(B) Resistors
(C) Transistors
(D) Inductors
Answer: (D) Inductors
Q8. A _ TTL device can sink up to 16mA and can source up to 400 MA.
(A) Low-power
(B) High-power
(C) Standard
(D) Schottky
Answer: (C) Standard
Q9. FETs are used in linear ICs to:
(A) Increase input resistance
(B) Provide large resistances
(C) Increase device complexity
(D) Both (a) and (b) above
Answer: (D) Both (a) and (b) above
Q10. A positive AND gate is also a negative
(A) NAND gate
(B) NOR gate
(C) AND gate
(D) OR gate
Answer: (D) OR gate
Q11. A flip-flop is a _ element that stores a binary digit as a low or high voltage.
(A) Chip
(B) Bus
(C) I/O
(D) Memory
Answer:(D) Memory
Q12. Which of the following flip-flops is free from race around problem?
(A) T flip-flop
(B) SR flip-flop
(C) Master slave JK flip-flop
(D) None of the above
Answer:(C) Master slave JK flip-flop
Q13. Conversion of decimal number 9910 to hexadecimal number is
(A) 6316
(B) 816
(C) 6116
(D) 5016
Answer: (A) 6316
Q14. When a transistor is cut off or saturated, transistor _ have almost no effect
(A) Wave
(B) Variations
(C) Stage
(D) Circuits
Answer: (B) Variations
Q15. Conversion of decimal number 8910 it’s binary number equivalent is
(A) 10110112
(B) 11001112
(C) 10110012
(D) 100112
Answer: (C) 10110012
Digital Computer Electronics MCQ – All Set
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