Answer:
Engine bearings are lubricated by <u>motor oils</u> constantly supplied in sufficient amounts to the bearings surfaces. Lubricated friction is characterized by the presence of a thin film of the pressurized lubricant
Explanation:
Answer: Ports
Explanation:
Ports are the devices tat is used for connection of input devices and output devices wit computer.Te links created by ports between peripheral and computing system connects devices such as monitors, keyboard,modems , printer speaker s etc.
External devices get plugged into ports which are embedded on motherboard of the computing system to establish peripheral connection.