Answer:
Technician B is correct only
Explanation:
The actions of technician b helps to eliminate uneven rotating speed which causes vibrations.

Difference between first and second generation of computers.

Refer to attachment.!
<h3>Hope It's helped mate! :)</h3>
Usually a LAN (Local Area Network), but it's not a requirement. A WAN (Wide Area Network) would need to be used in a multi-campus setup.
It is called a fluid layout
A fluid
web page typically is configured with percentage widths that sometimes take up
100% of the browser. They will use relative units like percentages instead of pixels
and will often fill the width of the page regardless of what the width of the
browser might be. They keep the same spatial weighting to all elements and
works fine on different sizes of screens of similar sort. They define each area
of an image layout perfectly.