Basic Logic gates

A NOT gate has

• two inputs and one output

• one input and two outputs

• one input and one output

• two input and two outputs

What kind of logic gate is this?

• OR

• AND

• NAND

• NOR

What kind of gate does this truth table represent?

• OR

• AND

• NOR

• NAND

NAND gate is equivalent to combination of

• NOT gate followed by AND gate

• NOT gate followed by OR gate

• OR gate followed by NOT gate

• AND gate followed by NOT gate

What kind of logic gate is this?

• OR

• NOR

• XOR

• NAND

Which of the following is truth table for NAND gate?

• 
• 
• 
• 

What kind of logic gates is used in half adder?

• NOT gate and AND gate

• AND gate and OR gate

• XOR gate and AND gate

• XNOR and AND gate

A AND B = Q. If A=1 and B=0, what does Q equal?

• 0

• 1

NOT(A OR B) = Q. If A=0 and B=0, what does Q equal?

• 0

• 1

The diagram shows combination of three logic gates.

Which of the following logic gate is NOT in the diagram?

• OR

• NOR

• AND

• NAND