What are the 5 primary mechanical displays, a Primary Flight Display (PFD) can replace?
(a) Altimeter, turn coordinator, vertical speed indicator, artificial horizon and heading/compass indicator
(b) Altimeter, vertical speed indicator, artificial horizon, heading/compass indicator and Mach meter
(c) Altimeter, vertical speed indicator, artificial horizon, heading/compass indicator and landing gear position
(d) Altimeter, turn coordinator, artificial horizon, heading/compass indicator and Mach meter
I had been asked this question in an online interview.
Asked question is from Head Down Display Technology in portion Displays and Man-Machine Interaction of Avionics