Describing Logic Circuits - General Questions Online Exam Quiz
Describing Logic Circuits - General Questions GK Quiz. Question and Answers related to Describing Logic Circuits - General Questions. MCQ (Multiple Choice Questions with answers about Describing Logic Circuits - General Questions
The format used to present the logic output for the various combinations of logic inputs to a gate is called a(n):
Options
A : truth table.
B : input logic function.
C : Boolean constant.
D : Boolean variable.
What is the basic difference between AHDL and VHDL?
Options
A : ADHL is used in all PLD's.
B : VHDL is used in all PLD's.
C : ADHL is proprietary.
D : VHDL is proprietary.
A small circle on the output of a logic gate is used to represent the:
Options
A : Comparator operation.
B : OR operation.
C : NOT operation.
D : AND operation.
Which of the figures in figure (a to d) is equivalent to figure (e)?
Options
A : a
B : b
C : c
D : d
In VHDL, the mode of a port does not define:
Options
A : an input.
B : an output.
C : both an input and an output.
D : the TYPE of the bit.
Which of the following equations would accurately describe a 4-input OR gate when A = 1, B = 1, C = 0, and D = 0?
Options
A : 1 + 1 + 0 + 0 = 1
B : 1 + 1 + 0 + 0 = 01
C : 1 + 1 + 0 + 0 = 0
D : 1 + 1 + 0 + 0 = 00
Which of the examples below expresses the distributive law?
Options
A : ( A + B ) + C = A + ( B + C )
B : A ( B + C ) = AB + AC
C : A + ( B + C ) = AB + AC
D : A ( BC ) = ( AB ) + C
Which of the examples below expresses the associative law of addition:
Options
A : A + ( B + C ) = ( A + B ) + C
B : A + ( B + C ) = A + ( BC )
C : A ( BC ) = ( AB ) + C
D : ABC = A + B + C
How are the statements between BEGIN and END not evaluated in VHDL?
Options
A : Constantly
B : Simultaneously
C : Concurrently
D : Sequentially
A NOR gate with one HIGH input and one LOW input:
Options
A : will output a HIGH
B : functions as an AND
C : will not function
D : will output a LOW
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