The Vacuum System Flashcards
0
Q
What are the normal vacuum operating limits?
A
4.8-5.2 inches of mercury at 2000 rpm
1
Q
Which instruments are vacuum driven?
A
The attitude indicator and Heading Select Indicator (if no slaving mechanisms installed.)
2
Q
How many vacuum pumps does the PA-44 have?
A
The Seminole is equipped with two engine driven vacuum pumps.
3
Q
What indications would occur in the event of a vacuum pump failure?
A
Indicated by an annunciator panel light and a red, pump inoperative indicator on the vacuum gauge.
