Digital Electronics Objective Questions - Set 13 - ObjectiveBooks

Digital Electronics Objective Questions - Set 13

Practice Test: Question Set - 13


1. 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

2. 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

3. Conversion of decimal number 9910 to hexadecimal number is
    (A) 6316
    (B) 816
    (C) 6116
    (D) 5016

4. _______dominates the LSI field, and _______ is used extensively where lowest power consumption is necessary.
    (A) NMOS, PMOS
    (B) PMOS, CMOS
    (C) NMOS, CMOS
    (D) MOSFET, PMOS

5. Conversion of a hexadecimal number 6316 to binary number is
    (A) 11001112
    (B) 11000112
    (C) 1110112
    (D) 11001112

6. Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH?
    (A) 16
    (B) 32
    (C) 38
    (D) 63

7. Arithmetic operation are coded in
    (A) Decision symbols
    (B) Input/Output (I/O)
    (C) Processing symbols
    (D) Terminal symbols

8. De Morgan's second theorem says that NAND gate is equivalent to a bubbled _______ gate.
    (A) AND
    (B) XAND
    (C) XOR
    (D) OR

9. An AND gate has 7 inputs, what is the only input word that produces a 1 output?
    (A) 0000000
    (B) 0001111
    (C) 1110000
    (D) 1111111

10. An OR gate has 6 inputs. What is the only input word that produces a 0 output?
    (A) 000000
    (B) 000111
    (C) 111000
    (D) 111111

11. A full-adder adds _______ bits, and producing a SUM and a _______
    (A) 8, SUBTRACTION
    (B) 3, CARRY
    (C) 16, DIVIDE
    (D) All of the above

12. De Morgan's first theorem says that a NOR gate is equivalent to a bubbled _______ gate.
    (A) AND
    (B) XAND
    (C) XOR
    (D) NOR

13. The master slave JK flip-flop is effectively a combination of
    (A) An SR flip-flop and a T flip-flop
    (B) An SR flip-flop and a D flip-flop
    (C) A T flip-flop and a D flip-flop
    (D) Two T flip-flops

14. Which of the following logic families has the highest noise immunity?
    (A) RTL
    (B) DTL
    (C) TTL
    (D) HTL

15. A de-multiplexer is also known as
    (A) Data selector
    (B) Data distributor
    (C) Multiplexer
    (D) Encoder

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