Question 1

Given the Boolean expression X =  and the values L = 1, M = 0, N = 1, D = 1, and G = 0, the value of X is:

Accepted Answer

A)  1 
B)  0 
A)  1 
B)  0

Question 2

The basic logic circuit whose output is the complement of the input is the:

Accepted Answer

A)  Inverter. 
B)  OR gate. 
C)  Comparator. 
D)  AND gate. 
A)  Inverter. 
B)  OR gate. 
C)  Comparator. 
D)  AND gate.

Question 3

Parentheses are used in Boolean expressions to eliminate confusion as to which operation is to be performed first.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following Boolean expressions represents a three input AND gate?

Accepted Answer

A)  X = AB + C 
B)  X =   
C)  X = ABC 
D)  X = A + B + C 
A)  X = AB + C 
B)  X =   
C)  X = ABC 
D)  X = A + B + C

Question 5

OR gates can have more than two inputs.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following Boolean expressions represents a four input AND gate followed by an inverter?

Accepted Answer

A)  X =   
B)  X =   
C)    
D)   
A)  X =   
B)  X =   
C)    
D)

Question 7

Bubbles represent inversion.

Accepted Answer

A) True 
 B)False

Question 8

Boolean variables are allowed to have how many possible values?

Accepted Answer

A)  any number 
B)  two 
C)  none 
D)  one 
A)  any number 
B)  two 
C)  none 
D)  one

Question 9

Which of the three basic logic functions is accomplished by connecting all the inputs of a NAND gate to a single logic function?

Accepted Answer

A)  Inversion 
B)  AND 
C)  OR 
D)  Comparison 
A)  Inversion 
B)  AND 
C)  OR 
D)  Comparison

Question 10

The_______ laws indicate that the variables in an AND expression or an OR expression can be grouped in any way.

Accepted Answer

The answer of The_______ laws indicate that the variables in...

Question 11

The output generated by a logic circuit for some combination of inputs can often be determined without using its Boolean expression.

Accepted Answer

A) True 
 B)False

Question 12

-Refer to Figure 3- 2. The output (Y) will be LOW whenever A and B are HIGH, and C is LOW.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following gates is the output gate for a circuit with the expression Y =   ?

Accepted Answer

A)  NAND 
B)  AND 
C)  OR 
D)  NOR 
A)  NAND 
B)  AND 
C)  OR 
D)  NOR

Question 14

Transitions are measured at the 50% point because transitions are not truly_______.

Accepted Answer

The answer of Transitions are measured at the 50% point...

Question 15

Any logic expression can be implemented using NOR gates.

Accepted Answer

A) True 
 B)False

Question 16

An OR gate with inverters on each of its inputs is equivalent to a_______gate.

Accepted Answer

The answer of An OR gate with inverters on each...

Question 17

Often times, an IC input label will contain an over- bar. In order for that particular input to perform a required function:

Accepted Answer

A)  the input needs to be low. 
B)  the input is active only on PGT. 
C)  the input is active only on NGT. 
D)  the input needs to be high. 
A)  the input needs to be low. 
B)  the input is active only on PGT. 
C)  the input is active only on NGT. 
D)  the input needs to be high.

Question 18

A NAND gate has:

Accepted Answer

A)  active high inputs and an active low output. 
B)  active low inputs and an active high output. 
C)  active high inputs and an active high output. 
D)  active low inputs and an active low output. 
A)  active high inputs and an active low output. 
B)  active low inputs and an active high output. 
C)  active high inputs and an active high output. 
D)  active low inputs and an active low output.

Question 19

Which logic function provides a low output only when all inputs are low?

Accepted Answer

A)  NOT 
B)  FOR 
C)  AND 
D)  OR 
A)  NOT 
B)  FOR 
C)  AND 
D)  OR

Question 20

-Refer to Figure 3- 2. The output (Y) will be HIGH when both A and B are LOW, and C is HIGH.

Accepted Answer

A) True 
 B)False

Given the Boolean expression X = and the values L = 1, M = 0, N = 1, D = 1, and G = 0, the value of X is:

The basic logic circuit whose output is the complement of the input is the:

Parentheses are used in Boolean expressions to eliminate confusion as to which operation is to be performed first.

Which of the following Boolean expressions represents a three input AND gate?

OR gates can have more than two inputs.

Which of the following Boolean expressions represents a four input AND gate followed by an inverter?

Bubbles represent inversion.

Boolean variables are allowed to have how many possible values?

Which of the three basic logic functions is accomplished by connecting all the inputs of a NAND gate to a single logic function?

The_______ laws indicate that the variables in an AND expression or an OR expression can be grouped in any way.

The output generated by a logic circuit for some combination of inputs can often be determined without using its Boolean expression.

-Refer to Figure 3- 2. The output (Y) will be LOW whenever A and B are HIGH, and C is LOW.

Which of the following gates is the output gate for a circuit with the expression Y = ?

Transitions are measured at the 50% point because transitions are not truly_______.

Any logic expression can be implemented using NOR gates.

An OR gate with inverters on each of its inputs is equivalent to a_______gate.

Often times, an IC input label will contain an over- bar. In order for that particular input to perform a required function:

A NAND gate has:

Which logic function provides a low output only when all inputs are low?

-Refer to Figure 3- 2. The output (Y) will be HIGH when both A and B are LOW, and C is HIGH.

Introductory Concepts

Number Systems and Codes

Combinational Logic Circuits

Flip-Flops and Related Devices

Digital Arithmetic: Operations and Circuits

Counters and Registers

Integrated-Circuit Logic Families

MSI Logic Circuits

Digital System Projects Using HDL

Interfacing With the Analog World

Memory Devices

Programmable Logic Device Architectures

Filters

Exam 3: Describing Logic Circuits

Given the Boolean expression X = and the values L = 1, M = 0, N = 1, D = 1, and G = 0, the value of X is:

The basic logic circuit whose output is the complement of the input is the:

Parentheses are used in Boolean expressions to eliminate confusion as to which operation is to be performed first.

Which of the following Boolean expressions represents a three input AND gate?

OR gates can have more than two inputs.

Which of the following Boolean expressions represents a four input AND gate followed by an inverter?

Bubbles represent inversion.

Boolean variables are allowed to have how many possible values?

Which of the three basic logic functions is accomplished by connecting all the inputs of a NAND gate to a single logic function?

The_______ laws indicate that the variables in an AND expression or an OR expression can be grouped in any way.

The output generated by a logic circuit for some combination of inputs can often be determined without using its Boolean expression.

-Refer to Figure 3- 2. The output (Y) will be LOW whenever A and B are HIGH, and C is LOW.

Which of the following gates is the output gate for a circuit with the expression Y = ?

Transitions are measured at the 50% point because transitions are not truly_______.

Any logic expression can be implemented using NOR gates.

An OR gate with inverters on each of its inputs is equivalent to a_______gate.

Often times, an IC input label will contain an over- bar. In order for that particular input to perform a required function:

A NAND gate has:

Which logic function provides a low output only when all inputs are low?

-Refer to Figure 3- 2. The output (Y) will be HIGH when both A and B are LOW, and C is HIGH.

Introductory Concepts

Number Systems and Codes

Combinational Logic Circuits

Flip-Flops and Related Devices

Digital Arithmetic: Operations and Circuits

Counters and Registers

Integrated-Circuit Logic Families

MSI Logic Circuits

Digital System Projects Using HDL

Interfacing With the Analog World

Memory Devices

Programmable Logic Device Architectures

Filters