Top 350+ Solved Digital Electronics and Logic Design MCQ Questions Answer
Q. After each circuit in a subsection of a VHDL program has been , they can be combined and the subsection can be tested.
a. designed
b. tested
c. engineered
d. produced
Q. The series of IC's are pin, function, and voltage-level compatible with the 74 series IC's.
a. als
b. cmos
c. hct
d. 2n
Q. The circuit produces a HIGH output whenever the two inputs are equal.
a. exclusive-and
b. exclusive- nand
c. exclusive- nor
d. exclusive- or
Q. In VHDL, data can be each of the following types except .
a. bit
b. bit_vector
c. std_logic
d. std_vect or
Q. When grouping cells within a K-map, the cells must be combined in groups of .
a. 2\s
b. 1, 2, 4, 8, etc.
c. 4\s
d. 3\s
Q. The circuit produces a HIGH output whenever the two inputs are unequal.
a. exclusive-and
b. exclusive- nor
c. exclusive-or
d. inexclusive-or
Q. Occasionally, a particular logic expression will be of no consequence in the operation of a circuit, such as in a BCD-to-decimal converter. These result in terms in the K-map and can be treated as either or , in order to the resulting term.
a. don\t care, 1\s, 0\s, simplify
b. spurious, and\s, or\s,eliminate
c. duplicate, 1\s, 0\s, verify
d. spurious, 1\s, 0\s,simplify
Q. A good rule of thumb for determining the pin numbers of dual-in-line package IC chips would be to place the notch to your right and pin #1 will always be in the lower right corner.
a. true
b. false
c. none of the above
d. can not predict
Q. The carry output of each adder in a ripple adder provides an additional sum output bit.
a. true
b. false
c. none of the above
d. can not predict
Q. Truth tables are great for listing all possible combinations of independent variables.
a. true
b. false
c. none of the above
d. can not predict
Q. A square in the top row of a K-map is considered to be adjacent to its corresponding square in the bottom row.
a. true
b. false
c. none of the above
d. can not predict
Q. To implement the full-adder sum functions, two exclusive-OR gates can be used.
a. true
b. false
c. none of the above
d. can not predict