Jakobus Pretoriu
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Jakobus Pretoriu
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Rolled Instruments 1

Questão 1 de 42

1

Total Air Temperature (TAT) is:

Selecione uma das seguintes:

  • Higher or equal to the Static Air Temperature (SAT); TAT is a function of altitude and SAT.

  • Lower than Static Air Temperature (SAT); TAT is a function of altitude and SAT

  • Lower than Static Air Temperature (SAT); TAT is a function of Mach number and SAT

  • Higher or equal to Static Air Temperature (SAT); TAT is a function of Mach number and SAT

Explicação

Questão 2 de 42

1

The air speed indicator is a differential manometer measuring the difference between:

Selecione uma das seguintes:

  • The static pressure and the dynamic pressure

  • The total pressure and the static pressure

  • The total pressure and the dynamic pressure

  • The dynamic pressure and the static pressure

Explicação

Questão 3 de 42

1

Indication of Mach number is obtained from:

Selecione uma das seguintes:

  • An ordinary airspeed indicator scaled for Mach numbers instead of knots

  • A kind of echo sound comparing velocity of sound with indicated airspeed

  • Indicated speed and altitude using a speed indicator with an altimeter type aneroid

  • Indicated speed (IAS) compared with true airspeed (TAS) from the air data computer

Explicação

Questão 4 de 42

1

The alternate static source of a non-pressurised aircraft is located in the flight deck; when used, the static pressure sensed is likely to be

Selecione uma das seguintes:

  • Higher than ambient pressure due to aerodynamic suction

  • Higher than ambient pressure if QNH is greater than 1013 hpa

  • Lower than ambient pressure if QNH is greater than 1013 hpa

  • Lower than ambient pressure due to aerodynamic suction

Explicação

Questão 5 de 42

1

EAS is equal to:

Selecione uma das seguintes:

  • TAS corrected for compressibility and density errors

  • CAS corrected for compressibility error

  • TAS corrected for compressibility error

  • CAS corrected for density error

Explicação

Questão 6 de 42

1

The parameter that determines the relationship between EAS and TAS is:

Selecione uma das seguintes:

  • Mach number

  • Pressure altitude

  • Density altitude

  • OAT

Explicação

Questão 7 de 42

1

If the static ports are completely clogged up by ice during a climb, the vertical speed indicator shows:

Selecione uma das seguintes:

  • An increasing rate of climb f the ambient static pressure decreases

  • Zero

  • A descent if the outside static pressure is less than the pressure in the instrument's gauge

  • A constant rate of climb, even if the aircraft is levelling out

Explicação

Questão 8 de 42

1

If the pitot tube becomes blocked during a descent, the airspeed indicator

Selecione uma das seguintes:

  • Under-reads or over-reads, depending on the air density

  • Over-reads

  • Indicates a constant speed

  • Under-reads

Explicação

Questão 9 de 42

1

The open-ended tube parallel to the longitudinal axis of the aircraft senses the:

Selecione uma das seguintes:

  • Dynamic pressure

  • Total pressure plus static pressure

  • Total pressure

  • Static pressure

Explicação

Questão 10 de 42

1

The response time of the vertical speed detector may be decreased by adding a:

Selecione uma das seguintes:

  • Return spring

  • Second calibrated port

  • Bimetallic strip

  • Correction based on an acceleration sensor.

Explicação

Questão 11 de 42

1

Which of the following statements about hard and soft iron in relation to magnetism is correct?

Selecione uma das seguintes:

  • Both hard and soft iron are of non-permanent nature.

  • Hard iron magnetism is of a permanent nature, and soft iron is of a non-permanent nature

  • Hard iron is of a non-permanent nature, and soft iron is of a permanent nature

  • Both hard and soft iron are of a permanent nature

Explicação

Questão 12 de 42

1

When turning onto a northerly heading the rose of a magnetic compass tends to "undershoot", when turning onto a southerly heading it tends to "overshoot":

1) these compass indications are less reliable in the Northern Hemisphere than in the Southern Hemisphere.
2) there commas oscillations following a lateral gust are not identical if the aircraft is heading north or south
3) this behaviour is due to the mechanical construction of the compass
4) this behaviour is a symptom of a badly sun compass

Selecione uma das seguintes:

  • 2 and 3

  • 1 and 3

  • 1, 2, and 4

  • 2, 3, and 4

Explicação

Questão 13 de 42

1

The purpose of compass swinging is to determine the deviation of a magnetic compass:

Selecione uma das seguintes:

  • At any latitude

  • On any heading

  • On a given heading

  • At a given latitude

Explicação

Questão 14 de 42

1

A pilot wishes to turn right on to a southerly heading with 20 bank at latitude 20N. Using a direct reading magnetic compass, in order to achieve this he must stop the turn on an approximate heading of:

Selecione uma das seguintes:

  • 200

  • 160

  • 170

  • 180

Explicação

Questão 15 de 42

1

Among the systematic errors of the directional gyro, the error due to the earth rotation make the north reference turn in the horizontal plane. At a mean latitude of 45N, this reference turns by:

Selecione uma das seguintes:

  • 7.5/hour to the left

  • 10.5/hour to the right

  • 7.5/hour to the right

  • 15/hour to the right

Explicação

Questão 16 de 42

1

Concerning the directional gyro, the apparent drift rate due to the Earth's rotation is a function of

Selecione uma das seguintes:

  • Longitude

  • Magnetic longitude

  • Latitude and longitude

  • Latitude

Explicação

Questão 17 de 42

1

After the initial 90 degrees of a turn at constant pitch and bank, a classic artificial horizon indicates:

Selecione uma das seguintes:

  • Too much nose-up and too much bank

  • Pitch and bank correct

  • Too much nose-up and bank correct

  • Too much nose-up and too little bank

Explicação

Questão 18 de 42

1

The flux valve of a gyromagnetic compass:

1. Feeds the error detector
2. Feeds the direct indicating compass
3. Gives the earth's magnetic field direction

The combination regrouping all of the correct statements is:

Selecione uma das seguintes:

  • 1, 2

  • 3

  • 2, 3

  • 1, 3

Explicação

Questão 19 de 42

1

The accelerometers of a strap-down IRS are in line with:

Selecione uma das seguintes:

  • The geographical directions

  • The aircraft axes

  • The local meridian and parallel

  • The local vertical and the local meridian

Explicação

Questão 20 de 42

1

In an INS, ground speed is calculated:

Selecione uma das seguintes:

  • By integrating gyro precession in N/S and E/W directions respectively

  • By integrating measured acceleration

  • From TAS and W/V from ADC

  • From TAS and W/V from RNAV data

Explicação

Questão 21 de 42

1

Considering a stabilised platform inertial system, the principle of operation requires the use of at least

Selecione uma das seguintes:

  • 3 rate gyros and 2 accelerometers.

  • 3 rate gyros and 4 accelerometers.

  • 2 rate gyros and 3 accelerometers.

  • 2 rate gyros and 2 accelerometers.

Explicação

Questão 22 de 42

1

The sensors of an INS measure

Selecione uma das seguintes:

  • The horizontal component of the earth's rotation

  • Velocity

  • Acceleration

  • Precession

Explicação

Questão 23 de 42

1

The Notification (LOG ON) is a FANS application which consists in:

Selecione uma das seguintes:

  • Requesting to transfer datalink communication to the next ATC centre on the route

  • Sending automatically aircraft surveillance data to the ATS facility

  • Establishing air/ground connection to verify if the datalink communication can be performed

  • Transmitting datalink messages between the pilot and ATC controller

Explicação

Questão 24 de 42

1

The ADS-C is a FANS application performed:

Selecione uma das seguintes:

  • Semi automatically, the pilot has to define a set of data to downlink but cannot define the type of report contract

  • Manually, the pilot has to define the set of data to downlink and the type of report contract

  • Semi automatically, the pilot cannot define the set of data to downlink but can define the type of report contract

  • Automatically, without any crew action to define the set of data to downlink or the type of report contract

Explicação

Questão 25 de 42

1

The FMS enables to fly an optimum flight profile. For this, the FMC uses:

1. Flight crew entered flight plan data
2. Data from the ADC
3. Aircraft position
4. A memorised relief world data base
5. Data from the FMC navigation

The combination that regroups all of the correct statements is:

Selecione uma das seguintes:

  • 1, 2, 5

  • 1, 2, 3, 5

  • 1, 3, 5

  • 2, 3, 4

Explicação

Questão 26 de 42

1

Concerning the FMS, entering a cost index of zero results in:

Selecione uma das seguintes:

  • Minimum airspeed.

  • Minimum range airspeed

  • Maximum cruising airspeed

  • Maximum range airspeed

Explicação

Questão 27 de 42

1

In LEGS mode the FMS displays the following: (Select those that apply):

i) True Track
ii) Variation
iii) Elevation of Waypoints
iv) TAS
v) Distance to Waypoints

Selecione uma das seguintes:

  • ii, iv, v

  • i, ii, iii, iv, v

  • i, v

  • i, ii, iv

Explicação

Questão 28 de 42

1

The FMS vertical navigation management is generally performed based on:

Selecione uma das seguintes:

  • The baro altitude input from the ADC

  • The GPS altitude computed by the GPS receiver

  • A mix of bars and GPS altitudes

  • The geometric altitude input from the TAWS

Explicação

Questão 29 de 42

1

The radio altimeter is required to indicate zero heigh AGL as the main wheels touch down on the runway. For this reason, it is necessary to:

Selecione uma das seguintes:

  • Adjust the gross height according to the aeroplane instantaneous pitch

  • Compensate for residual cable height and cable length

  • Have a specific radio altimeter dedicated to automatic landing

  • Change the display scale in short final, in order to have a precise readout

Explicação

Questão 30 de 42

1

The radio altimeter supplies data to the following system(s):

1. Altitude alert system
2. TCAS
3. GPWS
4. Automatic landing system

The combination that regroups all the correct statements is:

Selecione uma das seguintes:

  • 3

  • 3, 4

  • 1, 4

  • 2, 3, 4

Explicação

Questão 31 de 42

1

An EFIS includes the following components:

Selecione uma das seguintes:

  • FMS, symbol generator, display unit(s)

  • ADC, inertial navigation computer, display unit(s)

  • Display unit(s) only

  • Symbol generator, display unit(s), control panel

Explicação

Questão 32 de 42

1

The purpose of the Navigation Display (ND) is to display the following information:

Selecione uma das seguintes:

  • Terrain map, navaid bearings, flight director active modes

  • Flight plan, weather radar, terrain map, TCAS symbols

  • Flight plan, engine failure, naiads, resolution advisory (RA)

  • Intruding traffics, TCAS symbols, weather radar

Explicação

Questão 33 de 42

1

The characteristics of the SATCOM transmissions, used for data link communications are

Selecione uma das seguintes:

  • Line of sight limitation, no variable quality of signals distorted by ionospheric conditions

  • No line of sight limitation, no variable quality of signals distorted by ionospheric conditions

  • Line of sight limitation, variable quality of signals distorted by ionospheric conditions

  • No line of sight limitation, variable quality of signals distorted by ionospheric conditions

Explicação

Questão 34 de 42

1

According to AMC 25-11 concerning the electronic display systems, the colour associated with a warning-type alert is:

Selecione uma das seguintes:

  • Magenta

  • Yellow

  • Red

  • Amber

Explicação

Questão 35 de 42

1

On a modern aircraft, the flight director modes are displayed on the:

Selecione uma das seguintes:

  • Control panel of the flight director only

  • Upper strip of the ND

  • Upper strip of the PFD

  • Upper strip of the ECAM

Explicação

Questão 36 de 42

1

The Navigation Display (ND) of an EFIS equipped aircraft can display the following data:

Selecione uma das seguintes:

  • Flight plan, weather radar, terrain map, intruding traffics

  • Flight plan, engine failure, navaids, resolution advisories

  • Intruding traffics, altitude, autopilot active modes, weather radar

  • Terrain map, navaid bearings, flight director active modes

Explicação

Questão 37 de 42

1

In a radio altimeter, the height measurement is based upon:

Selecione uma das seguintes:

  • A pulse transmission, for which time between transmission and reception is measured on a circular scanning screen.

  • A wave transmission, for which the frequency shift by doppler effect after ground reflection is measured.

  • A frequency modulated wave, for which the frequency difference between the transmitted wave and the received wave after ground reflection is measured

  • A triangular amplitude modulation wave, for which modulation phase shift between transmitted and received waves after ground reflection is measured

Explicação

Questão 38 de 42

1

The radio altimeter:

1. Operates in the 1600-1660 kHz range
2. Operates in the 4200-4400 Mhz range
3. Measures a frequency difference
4. Measures an amplitude difference

The combination that regroups all of the correct statements is:

Selecione uma das seguintes:

  • 1, 3

  • 2, 3

  • 1, 4

  • 2, 4

Explicação

Questão 39 de 42

1

When climbing at a constant CAS above the tropopause in ISA:

Selecione uma das seguintes:

  • TAS and Mach will increase

  • TAS will increase, and Mach No will remain constant

  • TAS and Mach No will remain constant

  • TAS will increase, and Mach No will decrease

Explicação

Questão 40 de 42

1

Increasing the altimeter sub-scale setting by 1hPa will:

Selecione uma das seguintes:

  • decrease the altimeter reading by about 30 feet at all altitudes

  • Decrease the altimeter reading by an amount between 30 and 100 feet, depending on the aircraft altitude

  • Increase the altimeter reading by about 30 feet at all altitudes

  • Increase the altimeter reading by an amount between 30 and 100 feet, depending on the aircraft altitude

Explicação

Questão 41 de 42

1

In an INS, the E/W accelerations are converted into an E/W speed (kts) at the first stage of integration and into E/W distance (nm) at the second stage of integration. This gives:

Selecione uma das seguintes:

  • departure, which is multiplied by the Cosine of the present latitude to obtain d long (min) which is used to automatically update the present longitude

  • d long (min) which is used to automatically update the present longitude

  • departure, which is multiplied by the Sine of the present latitude to obtain d long (min) which is used to automatically update the present longitude

  • departure, which is multiplied by Secant of the present latitude to obtain d long (min) which is used to automatically update the present longitude.

Explicação

Questão 42 de 42

1

By definition an Earth gyro is a

Selecione uma das seguintes:

  • Gyro having 2 degrees of freedom

  • Gyro having 2 degrees of freedom, but controlled by some external force

  • Tied gyro controlled by gravity

  • Gyro having one plane of freedom at right angles to the plane of Earth rotation

Explicação

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