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Instrument Systems Flashcards

(61 cards)

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1
Q

What is the minimum instruments required by CFR 91.205

A

Tachometer for each engine
Coolant temp gauge for liquid cooled
Oil temp gauge for air cooled
Manifold pressure gauge for each altitude engine

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2
Q

What are the three types of pressures

A

Absolute
Gage
Differential

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3
Q

What does the oil pressure use to indicate

A

Gage pressure
Bourdon tube

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4
Q

What is used to measure oil temp

A

Bourdon tube
Capillary tube

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5
Q

How to measure fuel pressure

A

Capsule type measures low gage pressure such as fuel pressure

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6
Q

What are the two types of temp measuring devices

A

Ratiometer Instrument
Thermocouple instrument

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7
Q

What are the two wires that are connected together for the thermocoupling

A

Chromel lead
Alumel lead
Hot junction
Cold junction

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8
Q

What are the two types of tachometer

A

Mechanical
Electrical

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9
Q

What does the mechanical tachometer use

A

Drive cable
Rotating magnet
Hairspring
Dial
Pointer

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10
Q

What is a green arc mean

A

Normal operating range

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11
Q

What does yellow arc mean

A

Caution range

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12
Q

What does white arc mean

A

Special operating range

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13
Q

What does red arc mean

A

Prohibited range

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14
Q

What does a red radial line mean

A

Do not exceed

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15
Q

What does a blue radial line mean

A

Special operating condition

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16
Q

What does a red triangle, dot or diamond mean

A

Maximum limit for high transients such as starting

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17
Q

What does a turbine fuel flow indicator use

A

Aircraft electricity to power an impeller to swirl the fuel

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18
Q

What does the fuel flow indicator on a turbine use to measure

A

Fuel mass

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19
Q

What does the recip engine use for fuel flow

A

Fuel pressure

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20
Q

What does the manifold pressure gauge do

A

Indicate absolute pressure in the intake manifold

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21
Q

What common type of electrically operated oil temp gauge utilize

A

Wheatstone bridge
Ratiometer

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22
Q

What type of lead is in a recip thermocoupling

A

Bayonet type

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23
Q

What unit sends the information of engine speed to the tachometer in an electrical system

A

Three phase ac generator

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24
Q

What does the axial flow compressor turbine use to mesure thrust

A

EPR

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25
What is the borudon tube used for
To measure high pressures such as hydraulic or fuel pressures
26
What does a glass cockpit use
LCD CRT MFD
27
What is BITE
Built in test equipment
28
What type of system do the electronic devices use
Binary system
29
What does a digital computer contain
CPU Memory Input out put devices
30
What does the computerized fuel system give the pilots
Pounds or gallons of fuel on board Fuel flow in gallons per hour Fuel time remaining Number or gallons of fuel used so far
31
What does EICAS stand for
Engine indication and crew altering system
32
What are the classes of fires
Class A Class B Class C Class D
33
What is a class A fire
Has fuels that are solid combustibles
34
What is a Class B fire
Fuels that are combustible liquids
35
What is a class C fire
Involving electrical equipment
36
What is a Class D fire
Fires that involve metals
37
What is a class A fire zone
Large volumes of air flowing past regular arranged objects
38
What is a Class B fire zone
Large volumes of air flowing over aerodynamic clean objects
39
What is a Class C fire zone
Small air flow
40
What is a Class D fire zone
Have little to no air running through them
41
What is a Class X fire zone
Large volumes of air flow at an irregular rate
42
What are the requirements for fire detection and warning systems
Must have a separate fire detection system for each engine with light and audible sound No false readings Can’t be damaged Must operate off a aircraft electrical system
43
What are the two types of detectors
Fire Overheat
44
What is a thermoswitch
Uses metal to expand when there is a presents of fire. It is also a spot detector
45
What are the two types of thermoswitch detectors
Single loop Double loop
46
What does a thermocoupling do
Two dissimilar metal wires are welded together and sends a loop of electricity between the hot junction and cold junction
47
Thermocoupling sends the voltage to the warning light how
By sending voltage through the measuring junctions and the temp difference between the junctions allowing current to flow
48
What detects overheat condition as well as fire protection
Continuous loop fire and overheat detection system
49
What does a thermistor type continuous loop system do
Salt melts and allows the wire to ground sending voltage through the system
50
What is the single thermistor type continuous loop referred to as
Fenwall system
51
What is the two conductor thermistor type continuous loop called
Kiddie system
52
How do pneumatic type continuous loop systems work
Use a stainless steel tube that contains a gas that absorbed gas when cold and releases when heated
53
What are the types of pneumatic type of continuous loop
Lindberg system Systron dinner
54
What are the types of fire extinguishers agents
Carbon dioxide Liquid nitrogen Halogenated hydrocarbons
55
How do you test a thermocoupling
Press and hold the test button for the specific time period and allows the test junction to heat up causing energy to flow through the wires
56
What can the kidde system do that the fenwall cannot
It can detect overheat conditions as well as hotspots
57
How is the systron Donnor system differ from the lindberg system
It has a mixture of two gases and a titanium center wire
58
What does the integrity switch do for the systron donnor system
This is for when the glass breaks if you try and test the system it will not test
59
Where are CO2 discharge bottles usually connected to
Recip engine compartments
60
Where are HRD systems usually located
On most modern jet transport aircraft
61
What do CO2 bottles have to let them know whether a bottle has discharged or not
Indicator disk

Instrument Systems (1 decks)

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