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ATPL 22 AIRCRAFT GENERAL KNOWLEDGE – INSTRUMENTATION |
| 22.04 GYROSCOPIC INSTRUMENTS |
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1
During the approach, a crew reads on the radio altimeter the value of 650 ft. this is an indication of the true:
Height of the lowest wheels with regard to the ground at any time. |
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2
For most radio altimeters, when a system error occurs during approach the ..
Height indication is removed |
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3
The tcas (traffic collision avoidance system) is a proximity alarm system which detects a "traffic" when the conflicting traffic is equipped with a :
Serviceable ssr transponder |
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4
Concerning the tcas (traffic collision avoidance system) :
No protection is available against aircraft not equipped with a serviceable ssr transponder |
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5
The tcas (traffic collision avoidance system) gives avoidance resolutions :
Only in the vertical plane |
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6
In the event of a conflict, the tcas (traffic collision avoidance system) will give information such as :
Climb/descent |
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7
The principle of the tcas (traffic collision avoidance systems) is based on the use of :
Transponders fitted in the aircraft |
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8
A radio altimeter can be defined as a :
Self-contained on-board aid used to measure the true height of the aircraft |
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9
The data supplied by a radio altimeter:
Indicates the distance between the ground and the aircraft. |
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10
The low-altitude radio altimeters used in precision approaches: 1 operate in the 1540- 1660 mhz range. 2 are of the pulsed type. 3 are of the frequency modulation type. 4 have an operating range of 0 to 5000 ft. 5 have a precision of +/- 2 feet between 0 and 500 ft. the combination of the correct statements is :
3, 5 |
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11
In low altitude radio altimeters, the reading is zero when main landing gear wheels are on the ground. for this, it is necessary to:
Account for signal processing time in the unit and apply a correction factor to the reading. |
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12
The operating frequency range of a low altitude radio altimeter is:
4200 mhz to 4400 mhz. |
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13
Modern low altitude radioaltimeters emit waves in the following frequency band:
Shf (super high frequency). |
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14
The yaw damper, which suppresses dutch roll:
Controls the rudder, with the angular rate about the vertical axis as the input signal. |
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15
In low altitude radio altimeters, the height measurement (above the ground) is based upon: measured.
A frequency modulation wave, for which the frequency variation between the transmitted transmitted and wave after ground reflection is measured. |
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16
The aircraft radio equipment which emits on a frequency of 4400 mhz is the :
Radio altimeter. altimeter. |
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17
The decision height (dh) warning light comes on when an aircraft:
Descends below a pre- set radio altitude. |
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18
The yaw damper indicator supplies the pilot with information regarding the:
Yaw damper action on the rudder |
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19
A "tcas ii" (traffic collision avoidance system) provides: horizontal planes.
The intruder relative position and possibly an indication of a collision avoidance manoeuvre within the vertical plane only. |
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20
The tcas ii data display devices can be in the form of: 1- a specific dedicated screen 2- a screen combined with the weather radar 3- a variometer represented on a liquid crystal screen which allows the display of traffic advisory (ta) and resolution advisory (ra) 4- an efis (electronic flight instrument system) screen the combination regrouping all the correct statements is:
1, 2, 3 and 4. |
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21
When compared with the volumetric fuel flowmeter, the mass fuel flowmeter takes into account the fuel :
Density. |
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22
A "close traffic advisory" is displayed on the display device of the tcas 2 (traffic collision avoidance system) by :
A blue or white empty lozenge. |
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23
A "resolution advisory" (ra) is represented on the display system of the tcas 2 (traffic collision avoidance system) by a :
Red full square. |
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24
An "intruding traffic advisory" is represented on the display system of the tcas 2 (traffic collision avoidance system) by displaying :
A blue or white empty lozenge. |
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25
On a tcas2 (traffic collision avoidance system), a corrective "resolution advisory" (ra) is a "resolution advisory":
Asking the pilot to modify effectively the vertical speed of his aircraft. |
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26
When the intruding aircraft is equipped with a serviceable mode c transponder, the tcas ii (traffic collision avoidance system) generates a :
Traffic advisory and vertical "resolution advisory". |
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27
When the intruding aircraft is equipped with a transponder without altitude reporting capability, the tcas (traffic collision avoidance system) issues a :
Traffic advisory vertical "resolution advisory". |
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28
The tcas (traffic collision avoidance system) computer receives information : 1- about the pressure altitude through the mode s transponder 2- from the radio- altimeter 3- specific to the airplane configuration 4- from the inertial units the combination regrouping all the correct statements is:
1, 2, 3 |
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29
The tcas 2 (traffic collision avoidance system) provides : 1- traffic information (ta: traffic advisory) 2- horizontal resolution (ra: resolution advisory) 3- vertical resolution (ra: resolution advisory) 4- ground proximity warning the combination regrouping all the correct statements is:
1, 3 |
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30
A paddle-wheel placed in a the fuel circuit of a gas turbine engine initially measures:
Volumetric flow by a tally of the impulses |
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31
On a tcas 2 (traffic collision avoidance system) the preventive "resolution advisory" (ra) is a "resolution advisory":
That advises the pilot to avoid certain deviations from the current vertical rate but does not require any change to be made to that rate. |
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32
The operating principle of flowmeters, or "unit flow meters," the most commonly used at the present time, is to measure across their system the :
Quantity of fuel movement |