ELEXTECH 213

1. A number system is a system representing numbers. It is also called the___________

• a. numerical system                          

• b. system of enumeration

• c. binary system

• d. all of the above

2. What number system that positions successive to the left to represent units.

• a. binary number system                   

• b. octal number system                     

• c. decimal number system

• d. hexadecimal number system

3. Commonly used in computer applications.

• a. octal number system                      

• b. binary number system                    

• c. decimal number system

• d. hexadecimal number system

4.What device that acts as building block for digital circuits.

• a. Integrated Circuit                          

• b. Microprocessor                             

• c. Logic gates

• d. Embedded system

5. The output is false if both inputs are true. Otherwise, the output is true.

• a. AND gate                                      

• b. NAND gate                                   

• c. NOR gate

• d. XNOR gate

6. Its output is true if the inputs are the same and false if the inputs are different

• a. XNOR gate                                    

• b. XOR gate                                       

• c. OR gate

• d. AND gate

7. Its output is “true” if both inputs are “false”. Otherwise, the output is “false”

• a. XOR gate       

• b. OR gate                                         

• c. NAND gate

• d. NOR gate

9. The output is “true” if either, but not both of the inputs are “true”.

• a. NOT gate                                   

• b. XOR gate                                  

• c. XNOR gate

• d. NAND gate

10. The output is “true” if either or both of the inputs are “true”.

• a. OR gate                                     

• b. NOR gate                                  

• c. AND gate

• d. XOR gate

8. If the input is 1, then the output is 0. If the input is 0, then the output is 1

• a. Logical inverter                         

• b. AND gate                                   

• c. XNOR gate

• d. OR gate