The following quiz deals with the subject of Logic Gates and Circuits. Please read the appropriate sections in the text as well as the lecture notes and then answer the questions below. (Go back to homepage.)

1. Which of the following gates generates the truth table shown?

   x  y  |  F 
   ------+----
   0  0  |  0 
   0  1  |  1
   1  0  |  1
   1  1  |  0 
   

   1. AND gate
   2. OR gate
   3. NAND gate
   4. NOR gate
   5. XOR gate

2. The gate function illustrated is an equivalent representation for an
   1. AND gate
   2. OR gate
   3. NAND gate
   4. NOR gate
   5. XOR gate

3. Identify the function generated by the logic network illustrated.
   1. F = A
   2. F = AB'C
   3. F = ABC
   4. F = (A+B)C
   5. F = (A+B')C
      
      
      
      

4. Identify the gate elements in the circuit below.
   1. 2 OR and 1 NAND
   2. 2 NAND and 1 OR
   3. 2 AND and 1 NOR
   4. 2 NOR and 1 NAND
   5. 2 NAND and 1 NOR
      
      
      
      

5. In general, a NAND-NAND circuit is equivalent to which of the following circuit types?
   1. AND-AND
   2. OR-OR
   3. AND-OR
   4. OR-AND
   5. NOR-NOR

6. Identify that function generated by the logic circuit shown.
   1. F = AB + C + D
   2. F = (A'+B')C'D
   3. F = A'B'+ C'+ D'
   4. F = (A+B)CD
   5. None of the above
      
      
      
      

7. Integrated logic circuits whose gate complexity ranges between 20 and 200 gates are classified as:
   1. SSI circuits
   2. MSI circuits
   3. LSI circuits
   4. VLSI circuits
   5. None of the above

8. Which of the following digital logic families have the lowest propagation delays (i.e. highest speeds)?
   1. TTL
   2. ECL
   3. MOS
   4. CMOS
   5. I^2L

9. Which of the following IC digital logic families have the best low-power characteristics?
   1. TTL
   2. ECL
   3. MOS
   4. CMOS
   5. I^2L

10. Determine the states of the NMOS transistors, given the gate voltages shown below:
    1. off off on
    2. on off R
    3. off on R
    4. R off on
    5. on on R

11. Identify the NMOS gate circuit shown
    1. AND gate
    2. OR gate
    3. NOT gate
    4. NAND gate
    5. NOR gate
       
       
       
       
       
       
       
       
       
       
       
       
       
       

12. Identify that function generated by the logic circuit shown.
    1. F = ABCD
    2. F = A + B + C + D
    3. F = (A' + B')(C' + D')
    4. F = AB(C + D)
    5. F = (A + B)(C + D)
       
       
       
       

13. Identify the NMOS gate circuit shown.
    1. AND gate
    2. OR gate
    3. NOT gate
    4. NAND gate
    5. NOR gate