Industrial Engineering Quiz

3 Questions

What is selective preamble?

A type of introductory statement that is chosen based on specific criteria

What is lubrication?

The process of adding a non-sticky substance to reduce friction between moving parts

How is selective preamble different from lubrication?

Selective preamble involves choosing an introductory statement based on specific criteria, while lubrication involves reducing friction between moving parts

Study Notes

Lubrication and Selective Preamble

Lubrication

Lubrication refers to the application of a lubricant to reduce friction between two moving surfaces, thus reducing wear and tear, heat generation, and energy consumption
Lubricants can be in various forms, such as oils, greases, or waxes
The primary goal of lubrication is to prevent metal-to-metal contact, which can lead to damage and overheating

Selective Preamble

Selective preamble is a technique used in communication systems, particularly in wireless networks, to optimize transmission efficiency
It involves transmitting a short sequence of bits, called a preamble, before the actual data transmission
The preamble serves as a synchronization signal, allowing the receiver to synchronize with the transmitter and prepare for data reception
Selective preamble is different from lubrication as it is a communication technique, whereas lubrication is a mechanical concept used to reduce friction and wear

Comparing Selective Preamble and Lubrication

The main difference between selective preamble and lubrication lies in their application and purpose
Selective preamble is used in digital communication systems, while lubrication is used in mechanical systems
While both techniques aim to improve efficiency, selective preamble optimizes data transmission, whereas lubrication reduces friction and wear