 
 <prompt> Wetin fit helep moto make e stop suddenly? Based on di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Manifold vacuum fit use drive accessories for motor. The popular one na vacuum servo, wey dem dey use give power assist for brakes. Old school applications include vacuum-driven windscreen wipers and Autovac fuel pumps. Some aircraft instruments (Attitude Indicator (AI) and the Heading Indicator (HI)) dey typically vacuum-powered, as protection against loss of all (electrically powered) instruments, since early aircraft often no get electrical systems, and since there dey two easy sources of vacuum for moving aircraft—the engine and an external venturi. Vacuum induction melting dey use electromagnetic induction inside vacuum.``` 