Question

If a signal passing through a gate is inhibited by sending a LOW into one of the inputs, and the output is HIGH, the gate is a(n):

• A. AND
• B. NAND
• C. NOR
• D. OR

Answer 1

The correct option is B NAND

NAND gate: Output is high if any of the input is low. The truth table for NAND gate is:

A	B	Output
1	1	0
1	0	1
0	1	1
0	0	1