The term "beep" is an onomatopoeic word that refers to a short, sharp sound made by electronic devices or machinery. It can also be used as a verb to describe making such a sound, for example when testing if something is working properly.
Usage examples
As the delivery truck reversed, it emitted a series of beeps to ensure safety.
The cashier scanned each item at the grocery store, and with every beep, the price got added to the bill.
Adapt Sound will now run a hearing test, which consists of a series of beeps of varying frequencies from the left and right earbuds. (android.gadgethacks.com)
Some cars sound warning beeps when your car crosses a solid or dotted lane marking, then silences itself once it's away from the lane edge. (extremetech.com)
From the 3rd to 7th time the collar start with beeping sound follows by the vibration. (petpeoplesplace.com)