AVMT 1140 INSTRUMENT MIDTERM
PREP
1. ATA code for instruments?: code 31
2. name the two display catagories for instruments?: Digital and Analog
3. what are the 3 basic kinds of instruments classified by their job they perform?: Flight
instruments, Engine instruments, Navigation instruments
4. what catagory of instrument is used in controlling aircraft flight attitude: -
flight instruments
5. what catagory of instrument help the plan maintain a course: navigation instrument
6. what happens to a diaphram in a instrument when a pressure is intro- duced?: it will
expand moving a linkage
7. what is a diaphram called when a diaphram is evacuated?: it is called an anroid
8. what does a bellow measure?: two different differential pressure values.
9. what is the standar value for standard pressure in instruments both psi and "HG: 14.7 psi and
29.92" of HG
10. what is manifold pressure?
what does it indicate?: the pressure of air in a engine induction manifold.
it indicates the power being developed by the engine
11. For turbine engines what does EPR mean?
and what does an EPR gauge do to meaure pressure?: EPR = Engine pressure ratio
measures by comparing two different pressures
12.for a fuel pressure gauge how it it measured since you dont want a fuel line running to the
instrument?: By using a transmitter and sensor
13.when a pitot tube takes in RAM air what 3 instruments usie the static air pressure?:
1/5
, AVMT 1140 INSTRUMENT MIDTERM
PREP
Airspeed indicator, Vertical speed indicator, altimeter?
14.what does an altimeter indicate?: the height of the aircraft at a predetermined level such as sea
level.
15.in a krollsman window on an altimeter what should the reference pressure be set to?: 29.92 "
HG
16.Name all 3 Synchro types?: D.C Selsyn
A.C Magnasysn
A.C Autosyn
2/5
PREP
1. ATA code for instruments?: code 31
2. name the two display catagories for instruments?: Digital and Analog
3. what are the 3 basic kinds of instruments classified by their job they perform?: Flight
instruments, Engine instruments, Navigation instruments
4. what catagory of instrument is used in controlling aircraft flight attitude: -
flight instruments
5. what catagory of instrument help the plan maintain a course: navigation instrument
6. what happens to a diaphram in a instrument when a pressure is intro- duced?: it will
expand moving a linkage
7. what is a diaphram called when a diaphram is evacuated?: it is called an anroid
8. what does a bellow measure?: two different differential pressure values.
9. what is the standar value for standard pressure in instruments both psi and "HG: 14.7 psi and
29.92" of HG
10. what is manifold pressure?
what does it indicate?: the pressure of air in a engine induction manifold.
it indicates the power being developed by the engine
11. For turbine engines what does EPR mean?
and what does an EPR gauge do to meaure pressure?: EPR = Engine pressure ratio
measures by comparing two different pressures
12.for a fuel pressure gauge how it it measured since you dont want a fuel line running to the
instrument?: By using a transmitter and sensor
13.when a pitot tube takes in RAM air what 3 instruments usie the static air pressure?:
1/5
, AVMT 1140 INSTRUMENT MIDTERM
PREP
Airspeed indicator, Vertical speed indicator, altimeter?
14.what does an altimeter indicate?: the height of the aircraft at a predetermined level such as sea
level.
15.in a krollsman window on an altimeter what should the reference pressure be set to?: 29.92 "
HG
16.Name all 3 Synchro types?: D.C Selsyn
A.C Magnasysn
A.C Autosyn
2/5
