Logic Gates
The characteristic equation of D flip-flop is:
Answer: D
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An exclusive-NOR gate output is HIGH when the inputs are unequal.
Answer: B
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What is the circuit number of the IC that contains four two-input AND gates in standard TTL?
Answer: C
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A clock signal with a period of 1 
s is applied to the input of an enable gate. The output must contain six pulses. How long must the enable pulse be active?
Answer: C
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Which table shows the electrical state of a digital circuit's output for every possible combination of electrical states in the inputs ?
Answer: A
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The inverter OR-gate and AND gate are called deeision-making elements because they can recognize some input while disregarding others. A gate recognize a word when its output is
Answer: A
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If four 4 input multiplexers drive a 4 input multiplexer, we get a:
Answer: A
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A full-adder is a logic circuit which can add two single order bits plus a carry in from a previous adder. Its incomplete truth table is given in the table below. The missing entry in the outputs for SUM and CARRY out are
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Input |
Outputs |
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A |
A |
B |
Cin |
Sum |
CarryOUT |
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0 |
0 |
0 |
0 |
0 |
0 |
|
0 |
0 |
0 |
1 |
1 Answer: D No answer description available for this question
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What does the small bubble on the output of the NAND gate logic symbol mean? Answer: C No answer description available for this question
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A logic pulser is used to determine the level of floating in a circuit. Answer: B No answer description available for this question
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