Describing Logic Circuits Questions and Answers
Practice ModeShowing 10 of 34 questions
Q21
A NAND gate consists of an AND gate and an OR gate connected in series with each other.
Answer: Option B
Q22
In an expression containing both AND and OR operations, the AND operations are performed first (unless parentheses indicate otherwise).
Answer: Option A
Q23
The effect of an inverted output being connected to the inverting input of another gate is to effectively eliminate one of the inversions, resulting in a single inversion.
Answer: Option B
Q24
A minimum of three universal NOR gates would be required to perform the logical operation of a 2-input AND gate.
Answer: Option A
Q25
The Boolean expression for a three-input AND gate is X = ABC.
Answer: Option A
Q26
Output logic levels for certain input conditions of a logic circuit may often be determined without using the Boolean expression.
Answer: Option A
Q27
The comments in ADHL are enclosed between # characters.
Answer: Option B
Q28
The output of a NAND gate is the inverse of the output for an AND gate for all possible input combinations.
Answer: Option A
Q29
NOR gates can be used to construct AND gates.
Answer: Option A
Q30
The commutative law of Boolean addition states that A + B = A · B.
Answer: Option B