Question 1

If any input of a NAND gate is low, the output will be low.

Accepted Answer

A NAND gate only outputs low when all inputs are high; if any input is low, the output will be high.

Question 2

The simplest gate is the ____ gate: it has one input and one output.&#10;A) INVERTER&#10;B) NOR&#10;C) NAND&#10;D) OR

Accepted Answer

The simplest gate in terms of functionality is the INVERTER gate, also known as a NOT gate. It has one input and one output, where the output is the opposite (inverted) state of the input.

Question 3

Digital-logic gates are generally housed in ____.&#10;A) 8-pin IC packages&#10;B) 14-pin IC packages&#10;C) 16-pin IC packages&#10;D) 20-pin IC packages

Accepted Answer

Digital-logic gates are commonly housed in 14-pin IC packages, which is a standard size for many small-scale integration (SSI) logic circuits.

Question 4

A(n) ____ is one that has only two states, on or off.&#10;A) conditional device&#10;B) digital device&#10;C) analog device&#10;D) floor device

Accepted Answer

Digital devices operate with two states, representing on (1) and off (0), which is the basis of binary code used in computing and digital electronics.

Question 5

A(n) ____ gate is made by connecting an INVERTER to the output of an OR gate.&#10;A) NAND&#10;B) NOT&#10;C) XOR&#10;D) NOR

Accepted Answer

Connecting an INVERTER to the output of an OR gate results in a NOR gate, which outputs true only when all inputs are false.

Question 6

The electrician in industry today must be familiar with solid-state digital-logic circuits.

Accepted Answer

Solid-state digital-logic circuits are fundamental to modern industrial automation and control systems, requiring electricians to understand and work with these technologies.

Question 7

When two NAND gates are connected as INVERTERS, and these INVERTERS are connected to the inputs of another NAND gate, the OR gate is formed.

Accepted Answer

When two NAND gates are used as inverters, they provide the NOT operation. Connecting these inverters to the inputs of another NAND gate results in an OR gate due to De Morgan's laws.

Question 8

There can be a difference in the way some ICs are connected.

Accepted Answer

Different ICs (Integrated Circuits) can have varying connection requirements based on their function, power needs, and the overall design of the electronic system they are part of. This includes differences in pin configurations, voltage levels, and signal types.

Question 9

Magnetic relays are not digital devices.

Accepted Answer

The answer of Magnetic relays are not digital devices....

Question 10

A characteristic of CMOS logic is that unused inputs cannot be left in a(n) ____ state.&#10;A) shortened&#10;B) low&#10;C) indeterminate&#10;D) high

Accepted Answer

Unused inputs in CMOS logic circuits should not be left in an indeterminate state because this can lead to increased power consumption and erratic behavior. Floating (indeterminate) inputs can pick up noise, causing the CMOS device to switch states unpredictably.

Deck 43: Digital Logic