Logic Gate Quiz

The output of a logic gate is 1 when all the input are at logic 0 as shown below: INPUT OUTPUT A B C 0 0 1 0 1 0 1 0 0 1 1 0 INPUT OUTPUT A B C 0 0 1 0 1 0 1 0 0 1 1 1 The gate is either _________

• A NAND or an EX-OR

• An OR or an EX-NOR

• An AND or an EX-OR

• A NOR or an EX-NOR

The code where all successive numbers differ from their preceding number by single bit is __________

• excess 3

• grey

• bcd

• alpha numerical

How many AND gates are required to realize Y = CD + EF + G?

• 3

• 4

• 2

• 1

How many two-input AND and OR gates are required to realize Y = CD+EF+G?

• 2 2

• 2 3

• 3 2

• 3 3

The gates required to build a half adder are __________

represents

• half subtractor

• full adder

• half adder

represents

• half adder

• full adder

• full subtractor

represents

• half subtractor

• full subtractor

• half adder

represents

• half subtractor

• full subtractor

• full adder

represents which gate

• exor

• exnor

• nor

• not