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Logic Gates - A/L ICT by Teran Subasinghe

Quiz by Teran Subasinghe

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35 questions
Show answers
  • Q1
    Which logic gate performs the logical AND operation?
    NOT gate
    NAND gate
    AND gate
    OR gate
    30s
  • Q2
    Which logic gate is the inverse or complement of the AND gate?
    OR gate
    NAND gate
    XOR gate
    NOT gate
    30s
  • Q3
    What is the output of an XOR gate if both inputs are high?
    Low
    Undefined
    High
    No change
    30s
  • Q4
    What is the truth table for a NOT gate?
    Input: 0, Output: 1; Input: 1, Output: 1
    Input: 0, Output: 1; Input: 1, Output: 0
    Input: 0, Output: 0; Input: 1, Output: 1
    Input: 0, Output: 0; Input: 1, Output: 0
    30s
  • Q5
    What is the output of an XNOR gate if both inputs are the same (both high or both low)?
    Low
    High
    Undefined
    No change
    30s
  • Q6
    What is the symbol used to represent an XOR gate in a logic circuit diagram?
    ∧
    ⊕
    ¬
    ∨
    30s
  • Q7
    What is the output of a NOR gate if both inputs are low?
    Undefined
    No change
    High
    Low
    30s
  • Q8
    Which logic gate is used to build a SR flip flop?
    NAND gate
    AND gate
    OR gate
    XOR gate
    30s
  • Q9
    In a SR flip flop, what does the S input stand for?
    Set
    Reset
    Select
    Stop
    30s
  • Q10
    What is the purpose of the feedback loop in an SR flip flop?
    To provide power to the flip flop
    To maintain the state of the flip flop
    To change the state of the flip flop
    To control the clock signal
    30s
  • Q11
    What is the function of the R input in a SR flip flop?
    Set
    Reset
    Randomize
    Reverse
    30s
  • Q12
    How many stable states does a SR flip flop have?
    1
    4
    3
    2
    30s
  • Q13
    Which of the following logic gates is used for the implementation of memory elements like SR flip flops?
    NOT gate
    XNOR gate
    NAND gate
    NOR gate
    30s
  • Q14
    What is the characteristic feature of an SR flip flop?
    It has three inputs: Set (S), Reset (R), and Clock (C)
    It has only one input: Toggle (T)
    It has two inputs: Set (S) and Reset (R)
    It has four inputs: A, B, C, D
    30s
  • Q15
    What is the output of a SR flip flop when both S and R inputs are high?
    Set
    Reset
    Indeterminate
    No change
    30s

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