Combinational Logic Circuits - General Questions Online Exam Quiz
Combinational Logic Circuits - General Questions GK Quiz. Question and Answers related to Combinational Logic Circuits - General Questions. MCQ (Multiple Choice Questions with answers about Combinational Logic Circuits - General Questions
How many 3-line-to-8-line decoders are required for a 1-of-32 decoder?
A : 1
B : 2
C : 4
D : 8
Convert BCD 0001 0010 0110 to binary.
A : 1111110
B : 1111101
C : 1111000
D : 1111111
Convert BCD 0001 0111 to binary.
A : 10101
B : 10010
C : 10001
D : 11000
How many data select lines are required for selecting eight inputs?
A : 1
B : 2
C : 3
D : 4
How many 1-of-16 decoders are required for decoding a 7-bit binary number?
A : 5
B : 6
C : 7
D : 8
The implementation of simplified sum-of-products expressions may be easily implemented into actual logic circuits using all universal ________ gates with little or no increase in circuit complexity. (Select the response for the blank space that will BEST make the statement true.)
A : AND/OR
B : NAND
C : NOR
D : OR/AND
Which of the following statements accurately represents the two BEST methods of logic circuit simplification?
A : Boolean algebra and Karnaugh mapping
B : Karnaugh mapping and circuit waveform analysis
C : Actual circuit trial and error evaluation and waveform analysis
D : Boolean algebra and actual circuit trial and error evaluation
Which of the following combinations cannot be combined into K-map groups?
A : Corners in the same row
B : Corners in the same column
C : Diagonal corners
D : Overlapping combinations
As a technician you are confronted with a TTL circuit board containing dozens of IC chips. You have taken several readings at numerous IC chips, but the readings are inconclusive because of their erratic nature. Of the possible faults listed, select the one that most probably is causing the problem.
A : A defective IC chip that is drawing excessive current from the power supply
B : A solar bridge between the inputs on the first IC chip on the board
C : An open input on the first IC chip on the board
D : A defective output IC chip that has an internal open to V cc
Which gate is best used as a basic comparator?
A : NOR
B : OR
C : Exclusive-OR
D : AND
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