Menu
Home / ECE / Digital Electronics :: Section 13

ECE :: Digital Electronics

Digital Electronics - Section 1
Digital Electronics - Section 2
Digital Electronics - Section 3
Digital Electronics - Section 4
Digital Electronics - Section 5
Digital Electronics - Section 6
Digital Electronics - Section 7
Digital Electronics - Section 8
Digital Electronics - Section 9
Digital Electronics - Section 10
Digital Electronics - Section 11
Digital Electronics - Section 12
Digital Electronics - Section 13
Digital Electronics - Section 14
Digital Electronics - Section 15
Digital Electronics - Section 16
Digital Electronics - Section 17
Digital Electronics - Section 18
Digital Electronics - Section 19
Digital Electronics - Section 20
Digital Electronics - Section 21
Digital Electronics - Section 22
Digital Electronics - Section 23
Digital Electronics - Section 24
Digital Electronics - section-25
Digital Electronics - Section-26

  1. In 8085 microprocessor, even after a Reset operation which of the following interrupts remains enabled?

    2. A.
    INTR
    B.
    RST 5.5
    C.
    RST 7.5
    D.
    TRAP

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. A decoder can be used as a demultiplexer.

    3. A.
    True
    B.
    False

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. ADC 0804 is a

    4. A.
    dual slope A/D converter
    B.
    single slope A/D converter
    C.
    successive approximation A/D converter
    D.
    either (a) or (b)

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. The noise margin of a TTL gate is about

    5. A.
    0.2 V
    B.
    0.4 V
    C.
    0.6 V
    D.
    0.8 V

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. Assertion (A): BCD code is used in pocket calculators

    Reason (R): BCD code is slower than binary.

    6. A.
    Both A and R are correct and R is correct explanation of A
    B.
    Both A and R are correct but R is not correct explanation of A
    C.
    A is true, R is false
    D.
    A is false, R is true

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. In TTL the transistors are driven into and out of saturation.

    7. A.
    True
    B.
    False

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. The most commonly used logic family is

    8. A.
    ECL
    B.
    TTL
    C.
    CMOS
    D.
    PMOS

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. In a JK master slave flip flop

    9. A.
    master is clocked when clock is low
    B.
    slave is clocked when clock is high
    C.
    master is clocked when clock is high and slave is clocked when clock is low
    D.
    master is clocked when clock is low and slave is clocked when clock is high

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. The characteristic equation for the next state (Qn+1) of a J-K flip-flop is

    10. A.
    Qn+1 = JQn + KQn
    B.
    Qn+1 = JQn + KQn
    C.
    Qn+1 = JQn + KQn
    D.
    Qn+1 = JQn + KQn

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. A semiconductor Read-only-Memory basically is

    11. A.
    a combinational logic circuit
    B.
    a set of flip-flop memory elements
    C.
    a sequential circuit with flip-flops and gates
    D.
    none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers