NEIEP Mechanics Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the NEIEP Mechanics Exam with multiple choice questions, hints, and detailed explanations. Ace your test and advance your career!

Start Multiple Choice Practice Test
Start Flash Cards

Practice this question and more.

What inputs are required for the output of a NAND gate to be low (0)?

  1. A high (1) on inputs A and B

  2. A low (0) on both inputs

  3. A high (1) on input A only

  4. Any combination of inputs

The correct answer is: A high (1) on inputs A and B

The output of a NAND gate is low (0) only when all of its inputs are high (1). This means that if both inputs A and B are high (1), then the NAND gate produces a low (0) output. In digital logic, a NAND gate is a universal gate; it outputs a high (1) in all cases except when all inputs are high (1). The other options describe scenarios where the inputs do not meet the condition needed for a low output. If both inputs are low (0) or if only one input is high (1), the output will be high (1). Therefore, the condition specified in the correct answer is the only configuration that results in a low output from a NAND gate.

More Questions Like This