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Cuál expresión es correcta referente a un sistema de indicación de temperatura tipo termocupla:
Answer
Es un circuito de resistencia variable de tipo balanceado,
No requiere fuente de energía externa.
Usualmente contiene un circuito balanceado dentro del instrumento para prevenir fluctuaciones de voltaje del sistema que pueda afectar la lectura de temperatura.
Question 2
Question
Cuál de las siguientes causas de errores en el Compás Magnético de un avión podrán ser compensadas por los técnicos:
Answer
Desviación
"Corriente de Compás Magnético."
Variación.
Question 3
Question
Cuando el motor está apagado el manifold indica
Answer
Cero
14.7 PSI
La presión atmosférica del lugar.
Question 4
Question
Cuando la resistencia bulbo de un termómetro, recibe calor :
Answer
Aumenta su valor Mho
Aumenta su valor Ohmico.
La temperatura por el aumento de voltaje en el circuito cae a cero.
Question 5
Question
El acelerómetro sirve para:
Answer
Medir la velocidad de un avión en sentido longitudinal
La aceleración de una aeronave en sentido longitudinal
La aceleración de una aeronave en sentido vertical.
Question 6
Question
El mecanismo de un acelerómetro incorpora:
Answer
Un diafragma
Un fuelle
Una pesa.
Question 7
Question
El tacómetro para su funcionamiento toma la corriente del :
Answer
Sistema eléctrico del avión.
Generador correspondiente.
Un amperímetro, bobinas y piñones.
Question 8
Question
En el Termómetro bimetálico de aire ambiente, el elemento sensitivo es :
Answer
Un tubo Bourdon.
Un aneroide.
Un resorte helicoidal.
Question 9
Question
La indicación del termocouple ò par termo- eléctrico depende de :
Answer
La mayor temperatura que reciba uno de los metales de la unión.
La diferencia entre los potenciales eléctricos de los diferentes metales en contacto.
La clase de refrigeración que reciba el motor
Question 10
Question
Un tipo de indicador de temperatura de aceite tipo eléctrico, utiliza
Answer
Cualesquiera, un puente de Wheastone ò un circuito de relación (ratio).
Un circuito tipo termocupla.
Presión de Vapor ò suiches de presión
Question 11
Question
Un manómetro de indicación de presión de múltiple (manifold) esta diseñado para :
Answer
Mantener presión constante en la toma de entrada del múltiple.
Indicar la presión diferencial entre el múltiple de entrada y la presión atmosférica.
Mantener presión constante en la toma de entrada de aire del motor.
Question 12
Question
Un sistema Autosyn es :
Answer
Un método eléctrico de transmisión de acciones mecánicas.
En instrumentos no se usa este sistema.
Un sistema de transmisión electrónica.
Question 13
Question
What does indicate the yellow arch in an instrument:
Answer
Normal operation
Maximum operation limit
Caution
Question 14
Question
When swinging a magnetic compass, the compensators are adjusted to correct for
Answer
magnetic influence deviation.
compass card oscillations.
magnetic variations.
error magnetic variations
Question 15
Question
A radar altimeter determines altitude by
Answer
transmitting a signal and receiving back a reflected signal.
receiving signals transmitted from ground radar stations.
means of transponder interrogation.
mode s transponder interrogation.
Question 16
Question
A radar altimeter indicates
Answer
"flight level (pressure) altitude."
altitude above sea level.
altitude above ground level.
"hight level (pressure) altitude."
Question 17
Question
A synchro transmitter is connected to a synchro receiver
Answer
mechanically through linkage.
electromagnetically without wires.
electrically with wires.
electromagnetically without wires and connetors.
Question 18
Question
A turn coordinator instrument indicates
Answer
the longitudinal attitude of the aircraft during climb and descent.
the need for corrections in pitch and bank.
both roll and yaw.
radio altmeter
Question 19
Question
Aircraft instrument panels are generally shock- mounted to absorb
Answer
all vibration.
low-frequency, high- amplitude shocks.
high-frequency, high- amplitude shocks.
low energy impact shocks caused by hard landings.
Question 20
Question
Aircraft instruments should be marked and graduated in accordance with
Answer
the instrument manufacturer's specifications.
both the aircraft and engine manufacturers' specifications.
the specific aircraft maintenance or flight manual.
Advisory circular UAEAC
Question 21
Question
An aircraft instrument panel is electrically bonded to the aircraft structure to
Answer
act as a restraint strap.
provide current return paths.
aid in the panel installation.
wiring in the panels
Question 22
Question
An aircraft magnetic compass is swung to up- date the compass correction card when
Answer
an annual inspection is accomplished on the aircraft.
the compass is serviced.
equipment is added that could effect compass deviation.
2 years is requiered
Question 23
Question
Cases for electrically operated instruments are made of
Answer
Plastic or composite cases.
Aluminum or bakelite cases.
Iron or steel cases.
Composite materials
Question 24
Question
Cuales son los instrumentos básicos de navegación aérea
Answer
GPS y vertical Speed
"Radar meteorológico, GPS y indicador de giros y ladeos"
ADF, VOR, Brújula
Velocímetro, altímetro y brújula.
Question 25
Question
Cuales son los instrumentos Pitot Estáticos
Answer
"altímetro, Velocímetro y Variómetro"
altímetro, Turn And Bank y VOR
ADF, Velocímetro
Horizonte artificial, vertical speed, y radar meteorológico.
Question 26
Question
Cuales son los instrumentos que permiten conocer la actitud del avión en vuelo
Answer
"VOR, vertical speed y ADF"
Indicador de presión de combustible, temperatura de motor y Horizonte artificial.
Indicador de presión de aceite del motor, Horizonte artificial y altímetro
Horizonte artificial, giro direccional, indicador de giros y ladeos.
Question 27
Question
"Data transmitted between components in an EFIS are converted into"
Answer
digital signals.
analog signals.
carrier wave signals.
teller wave signals.
Question 28
Question
El funcionamiento del variómetro está basado en la contracción y expansión de:
Answer
un fuelle
aneroide
diafragma
ninguna de las anteriores
Question 29
Question
El mecanismo interior del manifold se compone de:
Answer
Una cápsula aneroide y un dispositivo multiplicador
Un diafragma y un dispositivo multiplicador
2 contrapesas y un eje flexible
Tambor o copilla magnética y eje actuador
Question 30
Question
Fuel flow transmitters are designed to transmit data
Answer
mechanically.
magnetics
utilizing fluid power.
electrically.
Question 31
Question
Generalmente cuando se unen dos metales diferentes y se calienta esta unión, se genera:
Answer
Fricción.
Pérdida de resistencia.
Pérdida de corriente eléctrica.
Voltaje.
Question 32
Question
If a static pressure system check reveals excessive leakage, the leak(s) may be located by
Answer
pressurizing the system and adding leak detection dye.
only pressurizing the system.
removing and visually inspecting the line segments.
isolating portions of the line and testing each portion systematically starting at the instrument connections.
Question 33
Question
Instrument panel shock mounts absorb
Answer
high energy impact shocks caused by hard landings.
low frequency, high- amplitude shocks.
high G shock loads imposed by turbulent air.
low energy impact shocks caused by hard landings.
Question 34
Question
Instrument static system leakage can be detected by observing the rate of change in indication of the
Answer
airspeed indicator after suction has been applied to the static system to cause a prescribed equivalent airspeed to be indicated.
altimeter after pressure has been applied to the static system to cause a prescribed equivalent altitude to be indicated.
altimeter after suction has been applied to the static system to cause a prescribed equivalent altitude to be indicated.
airspeed indicator before suction has been applied to the static system to cause a prescribed equivalent airspeed to be indicated.
Question 35
Question
"La mayoría de la cajas o carcasas donde vienen alojados los instrumentos se fabrican de la siguiente composición:"
Answer
Hierro fundido.
Tungsteno.
Fenol moldeado.
Material compuesto.
Question 36
Question
Magnetic compass bowls are filled with a liquid to
Answer
retard precession of the float.
reduce deviation errors.
dampen the oscillation of the float.
for not retard precession of the float.
Question 37
Question
Que significa el arco blanco en el velocímetro
Answer
La velocidad de perdida de la aeronave
La velocidad para operar los flaps
La operación normal de la aeronave
La velocidad a la cual la aeronave puede realizar un viraje.
Question 38
Question
Que significa el arco verde en los instrumentos
Answer
Precaución en la operación del sistema
Condición de nunca exceder
La velocidad de rotación de la aeronave
La operación normal del sistema
Question 39
Question
"The function of a symbol generator (SG) in an EFIS is to"
Answer
display alphanumeric data and representations of aircraft instruments.
allow the pilot to select the appropriate system configuration for the current flight situation.
receive and process input signals from aircraft and engine sensors and send the data to the appropriate display.
show alphanumeric data and representations of aircraft instruments.
Question 40
Question
The green arc on an aircraft temperature gauge indicates
Answer
the instrument is not calibrated.
the desirable temperature range.
a low, unsafe temperature range.
the instrument is bad
Question 41
Question
The lubber line on a directional gyro is used to
Answer
represent the nose of the aircraft.
align the instrument glass in the case.
represent the wings of the aircraft.
represent the stabilizer of the aircraft.
Question 42
Question
The operating mechanism of most hydraulic pressure gauges is
Answer
a Bourdon tube.
an airtight diaphragm.
an evacuated bellows filled with an inert gas to which suitable arms, levers, and gears are attached.
a Pascal tube
Question 43
Question
The red radial lines on the face of an engine oil pressure gauge indicates
Answer
"minimum engine safe RPM operating range."
minimum precautionary safe operating range.
minimum and/ or maximum safe operating limits.
the instrument is not calibrated.
Question 44
Question
"The requirements for testing and inspection of instrument static systems required by RAC part
4 are contained in"
Answer
"Type Certificate Data Sheets."
advisory circular UAEAC
Part 4 appendix E CHAPTER 1
Station Repair Documents
Question 45
Question
Thermocouple leads
Answer
are designed for a specific installation and may not be altered.
may be installed with either lead to either post of the indicator.
may be repaired using solderless connectors.
Question 46
Question
Turbine engine exhaust gas temperatures are measured by using
Answer
iron/constantan thermocouples.
chromel/alumel thermocouples.
ratiometer electrical resistance thermometers.
iron/alumel thermocouples.
Question 47
Question
Un giroscopio se opone a cualquier fuerza que trate de apartarlo del eje a cuyo alrededor esté girando. Esto se conoce como:
Answer
Dirección o rumbo magnético.
Campo magnético.
Rigidez.
Resistencia magnética
Question 48
Question
Una cápsula aneroide se comporta de la siguiente manera:
Answer
Se expande cuando la presión fluye y se achata o se contrae cuando esta no fluye.
Se achata o contrae cuando disminuye la presión y se expande cuando esta aumenta
Se achata o contrae cuando la presión aumenta y se expande cuando esta disminuye
"Su condición no se afecta por los cambios de presión"
Question 49
Question
What is the fixed line mark attached to the compass bowl of a magnetic compass called?
Answer
Reeder line.
Lubber line.
Reference line.
Rubber line
Question 50
Question
What will be the result if the instrument static pressure line becomes disconnected inside a pressurized cabin during cruising flight?
Answer
"The altimeter and airspeed indicator will both read low."
"The altimeter and airspeed indicator will both read high."
The altimeter will read low and the airspeed indicator will read high.
The altimeter or airspeed indicator will both read high.
Question 51
Question
When an aircraft altimeter is set at 29.92" Hg on the ground, the altimeter will read
Answer
pressure altitude.
density altitude.
field elevation.
hight altitude
Question 52
Question
When flags such as NAV, HDG, or GS are displayed on an HSI, the indication is
Answer
that function is inoperative.
that function is operating.
to call attention to deviation from the desired setting, or flight path, or heading, etc.
that function is operative.
Question 53
Question
When performing the static system leakage check required by RAC PART 4 , the technician utilizes
Answer
static pressure.
positive pressure.
negative pressure.
Dynamic pressure
Question 54
Question
Which condition would be most likely to cause excessive vacuum in a vacuum system?
Answer
Vacuum pump overspeed.
Vacuum relief valve improperly adjusted.
Vacuum relief valve spring weak.
Vacuum relief spring weak.
Question 55
Question
Which of the following causes of aircraft magnetic compass inaccuracies may be compensated for by mechanics?
Answer
Deviation.
Magnetic compass current.
Variation.
Validations
Question 56
Question
Which statement regarding an aircraft instrument vacuum system is true?
Answer
Dry-type vacuum pumps with carbon vanes are very susceptible to damage from solid airborne particles and must take in only filtered air.
Vacuum systems are generally more effective at high altitudes than positive pressure systems.
If the air inlet to each vacuum instrument is connected to a common atmospheric pressure manifold, the system generally will be equipped with individual instrument filters only.