Rolled Instruments 1

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Jakobus Pretoriu
Quiz by Jakobus Pretoriu, updated more than 1 year ago
Jakobus Pretoriu
Created by Jakobus Pretoriu almost 9 years ago
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Resource summary

Question 1

Question
Total Air Temperature (TAT) is:
Answer
  • 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

Question 2

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

Question 3

Question
Indication of Mach number is obtained from:
Answer
  • 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

Question 4

Question
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
Answer
  • 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

Question 5

Question
EAS is equal to:
Answer
  • TAS corrected for compressibility and density errors
  • CAS corrected for compressibility error
  • TAS corrected for compressibility error
  • CAS corrected for density error

Question 6

Question
The parameter that determines the relationship between EAS and TAS is:
Answer
  • Mach number
  • Pressure altitude
  • Density altitude
  • OAT

Question 7

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

Question 8

Question
If the pitot tube becomes blocked during a descent, the airspeed indicator
Answer
  • Under-reads or over-reads, depending on the air density
  • Over-reads
  • Indicates a constant speed
  • Under-reads

Question 9

Question
The open-ended tube parallel to the longitudinal axis of the aircraft senses the:
Answer
  • Dynamic pressure
  • Total pressure plus static pressure
  • Total pressure
  • Static pressure

Question 10

Question
The response time of the vertical speed detector may be decreased by adding a:
Answer
  • Return spring
  • Second calibrated port
  • Bimetallic strip
  • Correction based on an acceleration sensor.

Question 11

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

Question 12

Question
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
Answer
  • 2 and 3
  • 1 and 3
  • 1, 2, and 4
  • 2, 3, and 4

Question 13

Question
The purpose of compass swinging is to determine the deviation of a magnetic compass:
Answer
  • At any latitude
  • On any heading
  • On a given heading
  • At a given latitude

Question 14

Question
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:
Answer
  • 200
  • 160
  • 170
  • 180

Question 15

Question
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:
Answer
  • 7.5/hour to the left
  • 10.5/hour to the right
  • 7.5/hour to the right
  • 15/hour to the right

Question 16

Question
Concerning the directional gyro, the apparent drift rate due to the Earth's rotation is a function of
Answer
  • Longitude
  • Magnetic longitude
  • Latitude and longitude
  • Latitude

Question 17

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

Question 18

Question
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:
Answer
  • 1, 2
  • 3
  • 2, 3
  • 1, 3

Question 19

Question
The accelerometers of a strap-down IRS are in line with:
Answer
  • The geographical directions
  • The aircraft axes
  • The local meridian and parallel
  • The local vertical and the local meridian

Question 20

Question
In an INS, ground speed is calculated:
Answer
  • 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

Question 21

Question
Considering a stabilised platform inertial system, the principle of operation requires the use of at least
Answer
  • 3 rate gyros and 2 accelerometers.
  • 3 rate gyros and 4 accelerometers.
  • 2 rate gyros and 3 accelerometers.
  • 2 rate gyros and 2 accelerometers.

Question 22

Question
The sensors of an INS measure
Answer
  • The horizontal component of the earth's rotation
  • Velocity
  • Acceleration
  • Precession

Question 23

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

Question 24

Question
The ADS-C is a FANS application performed:
Answer
  • 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

Question 25

Question
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:
Answer
  • 1, 2, 5
  • 1, 2, 3, 5
  • 1, 3, 5
  • 2, 3, 4

Question 26

Question
Concerning the FMS, entering a cost index of zero results in:
Answer
  • Minimum airspeed.
  • Minimum range airspeed
  • Maximum cruising airspeed
  • Maximum range airspeed

Question 27

Question
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
Answer
  • ii, iv, v
  • i, ii, iii, iv, v
  • i, v
  • i, ii, iv

Question 28

Question
The FMS vertical navigation management is generally performed based on:
Answer
  • 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

Question 29

Question
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:
Answer
  • 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

Question 30

Question
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:
Answer
  • 3
  • 3, 4
  • 1, 4
  • 2, 3, 4

Question 31

Question
An EFIS includes the following components:
Answer
  • FMS, symbol generator, display unit(s)
  • ADC, inertial navigation computer, display unit(s)
  • Display unit(s) only
  • Symbol generator, display unit(s), control panel

Question 32

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

Question 33

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

Question 34

Question
According to AMC 25-11 concerning the electronic display systems, the colour associated with a warning-type alert is:
Answer
  • Magenta
  • Yellow
  • Red
  • Amber

Question 35

Question
On a modern aircraft, the flight director modes are displayed on the:
Answer
  • Control panel of the flight director only
  • Upper strip of the ND
  • Upper strip of the PFD
  • Upper strip of the ECAM

Question 36

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

Question 37

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

Question 38

Question
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:
Answer
  • 1, 3
  • 2, 3
  • 1, 4
  • 2, 4

Question 39

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

Question 40

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

Question 41

Question
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:
Answer
  • 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.

Question 42

Question
By definition an Earth gyro is a
Answer
  • 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
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