PMU EXAM QUESTIONS WITH COMPLETE SOLUTIONS!!

Primary power for PMU? - ANSWER Permanent Magnet Alternator (PMA) PMA voltage - ANSWER 32 volts What powers PMU if PMA fails - ANSWER 28 volts from battery bus Purpose of PMU? - ANSWER Keeps the engine and propeller within operating limits "PMU FAIL" waring CAS for PMU - ANSWER PMU is nonfunctional (anytime PMU fail illuminatests, the "PMU STATUS" will illuminate as well "PMU STATUS" CAS inflight - ANSWER Inflight = ground idle not available, plan for longer landing rollout at 67% N1 however, PMU will still function How is the PCL connected to the PMU - ANSWER PCL is: Mechanically connected to FMU Electrically connected to FMU via PMU What must you monitor if PMU fails? - ANSWER All engine limitations How many CAS messages for PMU? - ANSWER 2 PMU STATUS PMU FAIL "PMU STATUS" caution CAS for PMU - ANSWER 1) Illuminates after landing to alert maintenance of PMU internal fault 2)Illuminates in flight if there is a mismatch between WOW switches, meaning PMU won't switch to ground mode