Question 1

The functions of electrical control systems and their associated devices can be grouped into three functions: input, , output.&#10;A)information&#10;B)reaction&#10;C)logic&#10;D)action

Accepted Answer

The functions of electrical control systems and their associated devices can be grouped into three main functions: input, logic, and output. The logic function processes the input signals to determine the output.

Question 2

Input accessories receive and transmit information to the logic section of the control, such as a relay or .&#10;A)amplifier&#10;B)transistor&#10;C)contactor&#10;D)starter

Accepted Answer

Transistors are semiconductor devices used to amplify or switch electronic signals and electrical power, making them crucial in the logic section of controls for processing input signals.

Question 3

An AND gate must have all inputs in a high state before it develops a high output.

Accepted Answer

This statement is true for an AND gate as it develops a high output only when all of its inputs are in a high state. This is the definition of an AND gate. It requires all inputs to be high in order for the output to be high. If any input is low, the output will also be low.

Question 4

The input section of control consists of contactors, starters, solenoids, power magnetic amplifiers, electronic and solid state contactors.

Accepted Answer

The input section of control systems typically includes sensors, switches, and input devices, while contactors, starters, solenoids, and similar components are part of the output section, responsible for controlling power to devices.

Question 5

The INVERTER is a single-input, single output device.

Accepted Answer

An inverter is a logic gate that has one input and one output, where the output is the opposite (inverted) logic state of the input.

Question 6

The logic of an OR gate is that .&#10;A)if any input is low, the output also will be low&#10;B)if any input is low, the output will be high&#10;C)any high input will produce a high output&#10;D)if either but not both of its inputs is high it will have a high output

Accepted Answer

An OR gate operates such that if any of its inputs are high, the output will be high, regardless of the state of the other inputs.

Question 7

Sequence control is required whenever the must be operating before the machine itself can be operated safely.&#10;A)upstream equipment&#10;B)equipment connected in parallel with a machine&#10;C)auxiliary equipment associated with a machine&#10;D)downstream equipment

Accepted Answer

Auxiliary equipment associated with a machine often includes components such as lubrication systems, cooling systems, or power supplies that must be operational to ensure the machine can operate safely and effectively. Sequence control ensures these systems are activated in the correct order.

Question 8

A NOR gate will have a high input if any input is high.

Accepted Answer

A NOR gate outputs a high signal only when all inputs are low; if any input is high, the output is low.

Question 9

Main or subassembly line conveyors use sequence control.

Accepted Answer

Sequence control is used in main or subassembly line conveyors to ensure that the different processes occur in the correct order and at the right time to avoid collisions or delays in production. Main or subassembly line conveyors use sequence control to ensure that the products being assembled are in the correct order and are properly assembled. This helps to improve production efficiency and reduce errors in the manufacturing process.

Question 10

Solid-state control logic elements convert a single input into a single output by controlling a .&#10;A)transistor&#10;B)contactor&#10;C)solenoid&#10;D)starter

Accepted Answer

Solid-state control logic elements use transistors to convert a single input signal into a single output signal based on pre-programmed logic. They are commonly used in electronic circuits and automation systems. The other options listed are components used in electrical systems, but not directly related to control logic elements. Solid-state control logic elements are electronic devices that use transistors for their operation. They receive a single input and use the transistor to control a single output. Contactors, solenoids, and starters are all types of electromechanical devices that are used for controlling the power flow in electrical systems, but they are not used in solid-state control logic elements.

Deck 22: Sequence Control