26
3-47. Which of the following Boolean laws
states, "a term that is TRUE in one part of
an expression will be TRUE in all parts of
the expression"?
1.
Identity
2.
Commutative
3.
Complementary
4.
Double negative
3-48. The examples AB = BA and A+B = B+A
represent which of the following Boolean
laws?
1.
Associative
2.
Commutative
3.
Intersection
4.
Union
3-49. What type of logic gate is modified to
produce an exclusive OR gate?
1.
AND
2.
NAND
3.
OR
4.
NOR
3-50. Which of the following symbols
represents the operation function of an
exclusive OR gate?
1.
Q
2.
3.
O
4.
Figure 3J. Logic gate.
IN ANSWERING QUESTIONS 3-51 AND
3-52, REFER TO FIGURE 3J.
3-51. What will be the output of the gate when
(a) X is HIGH and Z is LOW, and (b) X
and Z are both HIGH?
1.
(a) LOW (b) LOW
2.
(a) LOW (b) HIGH
3.
(a) HIGH (b) LOW
4.
(a) HIGH (b) HIGH
3-52. What will be the output of the gate when
(a) X and Z are both LOW and (b) X is
LOW and Z is HIGH?
1.
(a) LOW (b) LOW
2.
(a) LOW (b) HIGH
3.
(a) HIGH (b) LOW
4.
(a) HIGH (b) HIGH
