EMB 145-Flight Instruments Questions With Complete
Solutions
ADS 2 (RH)? Correct Answers -ADC 2
-Pitot 2
-TAT 2
-Static Ports 2 & 3
Amber range? Correct Answers 1.13 Vs - Vs (stickshaker may
activate in this range)
Are there any cockpit control panels? Correct Answers no
At Vmo or Mmo, what is the color of airspeed isplay? Correct
Answers red
Does AHRS self test with initialization mode? Correct Answers
yes
Does AHRU have backup power if primary power fails?
Correct Answers yes.
Does this mode have attitude output? Correct Answers yes
similar to a conventional vertical gyro
how bout in a non-ISIS airplane? Correct Answers a minimum
of 9 minutes with 5 v back lighting
How long does AH-900 require to complete a power up built in
test (BIT)? Correct Answers 30 seconds.
, How long does AHRS power last on backup power? Correct
Answers 40 minutes.
How long does it take ISIS to complete alignment phase after
batteries are selected to AUTO on aircraft powerup? Correct
Answers 90 seconds
How long does this mode take? Correct Answers 5-10 minutes
or more after the BIT depending on the latitude at which the
AHRU is aligned. closer to the equator the quicker.
How long will it operate for in an electrical emergency? Correct
Answers 40 minutes
How many AHRS types do we have? Correct Answers AH-800
and AH-900
How many AHRS units on aircraft? Correct Answers 2
AHRS 1 and AHRS 2
How many AHRU does each AH-900 have? Correct Answers
2 located in the forward electronics compartment.
If failure of the attitude function is detected by internal
monitoring what will ISIS display show? Correct Answers
Display is replaced with a black background and an ATT flag is
displayed.
If the acceleration trend vector exceeds Vmo or Mmo, the digits
in the airspeed window and the digital Mach read out are
displayed in what color? Correct Answers Amber
Solutions
ADS 2 (RH)? Correct Answers -ADC 2
-Pitot 2
-TAT 2
-Static Ports 2 & 3
Amber range? Correct Answers 1.13 Vs - Vs (stickshaker may
activate in this range)
Are there any cockpit control panels? Correct Answers no
At Vmo or Mmo, what is the color of airspeed isplay? Correct
Answers red
Does AHRS self test with initialization mode? Correct Answers
yes
Does AHRU have backup power if primary power fails?
Correct Answers yes.
Does this mode have attitude output? Correct Answers yes
similar to a conventional vertical gyro
how bout in a non-ISIS airplane? Correct Answers a minimum
of 9 minutes with 5 v back lighting
How long does AH-900 require to complete a power up built in
test (BIT)? Correct Answers 30 seconds.
, How long does AHRS power last on backup power? Correct
Answers 40 minutes.
How long does it take ISIS to complete alignment phase after
batteries are selected to AUTO on aircraft powerup? Correct
Answers 90 seconds
How long does this mode take? Correct Answers 5-10 minutes
or more after the BIT depending on the latitude at which the
AHRU is aligned. closer to the equator the quicker.
How long will it operate for in an electrical emergency? Correct
Answers 40 minutes
How many AHRS types do we have? Correct Answers AH-800
and AH-900
How many AHRS units on aircraft? Correct Answers 2
AHRS 1 and AHRS 2
How many AHRU does each AH-900 have? Correct Answers
2 located in the forward electronics compartment.
If failure of the attitude function is detected by internal
monitoring what will ISIS display show? Correct Answers
Display is replaced with a black background and an ATT flag is
displayed.
If the acceleration trend vector exceeds Vmo or Mmo, the digits
in the airspeed window and the digital Mach read out are
displayed in what color? Correct Answers Amber
