CAE adapt

A flashing red light from control tower during an approach to land means: The airport is temporarily closed, continue circling. Give way to other aircraft in emergency. The airport is unsafe, do not land. Continue circling and wait for further instructions.

An aircraft is considered to overtake another if it approaches the other aircraft from the rear on a line forming an angle of less than : 70 degrees with the plane of symmetry of the latter. 60 degrees with the plane of symmetry of the latter. 80 degrees with the plane of symmetry of the latter. 50 degrees with the plane of symmetry of the latter.

4nm of rain is covering a runway. It is : Flooded. Damp. Wet. Contaminated.

Unless otherwise prescribed, what is the rule regarding level to be maintained by an aircraft flying IFR outside controlled airspace?. 1000 ft above the highest obstacle within 8 nautical miles of course. 2000 ft above the highest obstacle within 8 km of course. 1000 ft above the highest obstacle within 8km of the estimated position of the aircraft. 2000 ft above the highest obstacle within 8 nautical miles of course.

When a controlled flight inadvertently deviates from its current flight plan, ATC has to be informed in case : It is a deviation from the track. The TAS varies by plus or minus 5% of the TAS notified in the flight plan. The estimated time is in error by more than 10 minutes. Of an emergency.

An aircraft is flying over a mountainous region in which a search is being carried out to find the survivors of an aircraft accident. The pilot sees a ground signal in a form of "X". This indicates : Need medical assistance. Need mechanical assistance. None of the other options. Need food and water.

Which does ATC term "Radar Contact" signify?. Your aircraft has been identified on the radar display and radar flight instructions will be provided until radar identification is terminated. Your aircraft has been identified and you will receive separation from all aircraft while in contact with this radar facility. ATC is receiving your transponder and will furnish vectors and traffic advisories until you are advised that contact has been lost. You will be given traffic advisories until advised that the service has been terminated or that radar contact has been lost.

The sensitivity of a direct reading magnetic compass is : Inversely proportional to the horizontal compenents of the earth's magnetic field. Inversely proportional to the vertical compenents of the earth's magnetic field. Inversely proportional to the vertical and horizontal compenents of the earth's magnetic field. Proportional to the horizontal compenents of the earth's magnetic field.

An accumulator is pre-charged with air to 1000 psi and the hydraulic pressure is pressurized to 1500 psi. The accumulator gauge will read : 1500 psi. 2500 psi. 500 psi. 1000 psi.

True track is 348 deg, drift 17 deg left, variation 32 deg W, deviation 4 deg E, what is the compass heading?. 033. 359. 337. 007.

The earth may be referred to as : An oblate spheroid. Elliptical. A globe. Round.

On a direct Mercator projection, at latitude 45 deg north, a certain length represents 70nm. At latitude 30 deg north, the same length represents approximately : 86nm. 81nm. 57nm. 70nm.

On a Lambert Conformal chart the distance between meridians 5 deg apart along latitude 37 deg North is 9cm. The scale of the chart at the parallel approximates : 1 : 2000000. 1 : 6000000. 1 : 5000000. 1 : 3750000.

On a Lambert Conformal conic chart earth convergency is most accurately represented at the : Parallel of origin. North and south limits of the chart. Standard parallels. Equator.

Safety is often improved by applying the principles of CRM e.g. : Abstention from any suggestion which may be untimely. Unquestioned obedience to all the captain's decisions. The avoidance of any conflict in order to preserve the crew's energy. Expression of one's self doubt or different opinion for as long as this doubt cannot be rejected on the base of evidence.

Under normal circumstances, which gas will diffuse from the blood to the alveoli : Carbon monoxide. Oxygen. Carbon Dioxide. Nitrogen.

The following actions are appropriate when face with symptoms of decrompression sickeness : 1. climb to a higher level 2. Descent to the higher of 10000 ft or MSA and land soon as possible 3. Breathe 100 % oxygen 4. Get medical advice about recompression after landing. 1,2,3. 1,4. 2,3,4. 1,3.

What is understood by air sickness?. An illness caused by an infection of the middle ear. An illness caused by evaporation of gasses in the blood. An illness caused by reduced air pressure. A sensory conflict within the vestibular system accompanied by nausea, vomiting, and dizziness.

The metabolism of alcohol is : Can be accelerated more by coffee. Can be influenced by easy to get medication. Is quicker when used to it. Is a question of time.

In flight, when the needle of a needle and ball indicator is on the right and the ball is on the left, the aircraft is : Turning to the right with too much bank. Turning to the right with not enough bank. Turning to the left with not enough bank. Turning to the left with too much bank.

The purpose of the Annunciator unit of remote indicating compass is to : Show whether the compass is operating either in the GYRO or COMPASS mode. Indicate that the gyro is synchronized with the detector unit. Advise if the gyro is subject to excessive wander. Display the serviceability of the compass.

When climbing at a constant Mach number below the tropopause, in ISA conditions, the calibrated airspeed (CAS) will : Increase at an exponential rate. Decrease. Increase at a linear rate. Remain Constant.

The pitot blockage of both the ram air input and the drain hole with the static port open causes the airspeed indicator to : Freeze at zero. Read a little high. React like an altimeter. Read a little low.

A turn indicator is built around a gyroscope with : 2 degrees of freedom. 1 degrees of freedom. 3 degrees of freedom. 0 degrees of freedom.

The aircraft radio equipment which emits on a frequency of 4400 mhz is the : Weather radar. Primary radar. High altitude radio altimeter. Radio Altimeter.

When otherwise clear and calm conditions exist a station on the shore of a large body of water will experience wind : From the land in the daytime and from the water at night. From the water in the daytime and from the land at night. Continually from water to the land. Continually from land to water.

The atmosphere is heated primarily by : Shortwave terrestrial radiation from the earth. Longwave terrestrial radiation released by the earth. The sun's isolation. Earth bound electromagnetic radiation.

Which constant pressure altitude chart is standard for a 4781 ft pressure level (FL50). 700 hPa. 850 hPa. 500 hPa. 300 hPa.

In the following METAR : METAR YUDO 1630Z 24015KMH 0600 R12/1000U FG DZ SCT010 17/16 Q1018. W/V is 240deg (T) at 15 kilometer per hour, cloud is 4/8 at 100 , QNH is 1018 hPa. Airfield visibility is 600m, runway visual range is maximum of 1000m on touchdown R/W 12, weather is fog and drizzle. W/V is 240 (T) at 15 kilometers per hour, airfield visibility is 600m, runway visual range at touchdown in R/W 12 is 1000m showing a tendency to improve in the last 10 minutes, QNH is 1018 hPa. W/V is 240deg (M) at 15 kt, runway visual range at touchdown on R/W 12 is 1000m showing a tendency to improve in the last 10 minutes, dewpoint is +16deg C.

Refer to the following TAF extract; BECMG 1821 2000 BKN004 PROB30 BECMG 2124 0500 FG VV001. What does abbrevia on PROB30 means?. The cloud ceiling should lift to 3000 ft. Probability of 30 %. Conditions will last for at least 30 minutes. Change expected in less than 30 minutes.

During a flight over the sea at FL100 from Aga (QNH 1016 hPa) to Kochi (QNH 1016 hPa), the true al tude is constantly decreasing. What is the probable reason for this?. The altimeter is faulty. The air at Agatti is warmer than that at Kochi. The air at Kochi is warmer than that at Agatti. One of the QNH values must be wrong.

The rate of climb : Is the horizontal compenent of the true airspeed. Is the angle of climb multiplied by the true airspeed. Is approximately climb gradient multiplied by the true airspeed divided by 100. Is the downhill component of the true airspeed.

The C of G is : The point on the aircraft where the lift acts through. The point on the aircraft through which gravity appears to act. The point on the aircraft where the datum is located. The point on the aircraft from where the dihedral angle is measured.

A lower airspeed at constant mass and altitude requires : A higher coefficient of lift. Less thrust and lower coefficient of lift. More thrust and lower coefficient of lift. More thrust and lower coefficient of drag.

The critical engine inoperative : Does not affect the airplane perfomance since it is dependent of the power plant. Increase the power required and decrease the total drag due to the windmiling engine. Decrease the power required because of the lower drag caused by the windmilling engine. Increase the power required because of the greater drage caused by the windmilling engine and the compensation for the yaw effect.

The frangible obstacle is classed as : An obstruction in the take off path that is a minimum hazard to an aircraft. An obstruction that must be removed from any part of the maneuvering. An obstruction in the take off path that limits the length of the stopway. An obstruction that must be taken into account for performance calculations.

Which of the following statements is correct?. VTH is the maximum speed for setting approach flaps. VTH is the correct speed when crossing the Runway threshold. VTH is the maximum speed for an aborted takeoff. VTH is the correct touchdown speed.

Lateral Stability can be increased using : Wing diheral. Frise ailerons. Spoilers. Wing anhedral.

The formula of Mach number is?. M= TAS * Speed of sound. M= TAS / Speed of sound. M= Speed of sound / TAS. M= IAS / Speed of sound.

Which of the following devices is used to counter adverse yaw on rolling into and out of a turn?. Differential ailerons. Vortex generators. A yaw damper. A dorsal fin.

The direction of drag is : Perpendicular to the free steam flow. Perpendicular to the longitudinal axis of the aircraft. Parallel to the free stream airflow. Parallel to the longitudinal axis of the aircraft.

Weight acts : Perpendicular to the longitudinal axis. Perpendicular to the relative airflow. Parallel to the gravitational force. Perpendicular to the chord line.

Bernoulli's equation states that : The sum of center of pressure and dynamic pressure is total pressure. Dynamic pressure equals stagnation pressure. Static pressure equals stagnation pressure. The sum of static pressure and dynamic pressure equals stagnation pressure.

An aircraft DME receiver does not lock on its own transmissions reflected from the ground because: DME transmits twin pulses. They are not on the receiver frequency. DME uses UHF band. The pulse recurrence rates are varied.

Which of the following does not affect the accuracy of VDF bearings. Synchronous transmissions. Duct propagation. Sky waves. Ground reflections.

On a typical computere generated SSR display the following data on a particular flight will be shown : Squawk code, flight level, true heading, airplane call sign. Destination, flight level, ground speed, airplane call sign. Squawk code, flight level, ground speed, airplane call sign. Squawk code, magnetic heading, ground speed, airplane call sign.

The indicator of the ground VDF equipment responds to : The voice modulated signal transmitted by the aircraft. The carrier wave received. The identification transmitted from the aircraft. The signal being reflected from the aircraft.

Signal recep on is required from a minimum number of satellites that have adequate elevation on and suitable geometry in order for a Satellite-Assisted Navigation on System (GPS) to carry out independent three-dimensional operation on WITHOUT the Receiver Autonomous Integrity Monitoring (RAIM) function on. The number of satellites is: 5. 3. 4. 6.

The selection of code 7700 on aircraft SSR transponder indicates : Unlawful interference with the planned operation of the flight. Radio communication failure. An emergency. Transponder malfunction.

The effect of a headwind is to?? the climb gradient and to ?? the rate of climb : Not affect, increase. Increase, decrease. Increase, not affect. Decrease, increase.

Which of the following statements is correct?. VLE is the maximum airspeed at which the landing gear may be extended or retracted. VNE occurs vefore VNO. VS is a very specific airspeed. VR occurs before VLOF.

Which of the following statements is correct?. Gross acceleration is net acceleration minus 9.81m/s2. Gross landing distance is greater than net landing distance. Gross take-off distance is less than net take off distance. Gross gradient is less than net gradient.

In a cold air advection wind blows towards warmer air and causes : No wind at all. Strong wind forces. A veering. A backing.

The troposphere is deepest : Near the equator. Near the poles. Over the poles in summer. The same all over the earth.

The QFF at an airfield located 400 metres ABOVE sea level is 1016 hPa. The air temperature is 10°C HIGHER than a standard atmosphere. What is the QNH?. 1016 hPa. More than 1016 hPa. Less than 1016 hPa. It is not possible to give a definitive answer.

Stalling speed in a 15 degrees bank level turn is 60knts. The stalling speed in a 45 degree bank level turn will be. 60 knts. 70 knts. 83 knts. 85 knts.

Under which conditions would you expect the heaviest clear ice acceration to occur in a CB?. Close to the freezing level. Between -30C and -40C. Between -20C and -30C. Between -2C and -15C.

The QNH at an airfield located 0 metres above sea level is 1022 hPa. The air temperature is NOT AVAILABLE. What is the QFF?. Less than 1022 hPa. More than 1022 hPa. It is not possible to give a definitive answer. 1022 hPa.

Which combination of design features is known to be responsible for deep stall?. Swept back wings and wing mounted engines. Straight wings and T tail. Swept back wings and a T tail. Straight wings and aft fuselage mounted engines.

The station pressure used in surface weather charts is. QNH. QFE. QNE. QFF.

Which of the following procedures must be adopted if, on a flight under IFR conditions using a NAVSTAR/GPS satellite navigation system receiver, the position fix obtained from the GPS receiver differs from the position of conventional navigation systems by an unacceptable amount?. It may be continued using conventional navigation systems. It may be continued using NAVSTAR/GPS; Prior to the next flight all systems must be checked. It must be continued under VFR conditions. The pilot must determine the reason for the deviation and correct the error and switch off the faulty system.

Pressure altitude is : The altimeter indication when 1013.25 hPa is set on the sub-scale. The altitude above sea level. The altimeter indication when QFE is set on the sub-scale. The altimeter indication when QNH is set on the sub-scale.

Regarding take-off, the take-off decision speed V1: Is the airspeed of the airplane upon reaching 35 feet above the take off surface. Is always equal to VEF (Engine failure speed). Is the airspeed on the ground at which the pilot is assumed to have made a decision to continue or discontinue the take off. Is an airspeed at which the airplane is airborne but below 35ft and the pilot is assumed to have made a decision to continue or discontinue the take off.

The direction of drag is : Parallel to the free stream airflow. Perpendicular to the longitudinal axis of the aircraft. Parallel to longitudinal axis of the aircraft. Perpendicular to the free stream airflow.

The QFF at an airfield located 400 metres above sea level is 1016 hPa. The air temperature is 10°C LOWER than a standard atmosphere. What is the QNH?. 1016 hPa. It is not possible to give a definitive answer. Less than 1016 hPa. More than 1016 hPa.

As an airplane using gps moves through the enroute. Terminal and approaches phases of the flight GPS required navigational performance (RNP) standard levels are : +/-5NM , +/-3NM , +/-1NM. +/-2NM , +/-1NM , +/-0.3NM. +/-2NM , +/-1NM , +/-0.1NM. +/-2NM , +/-0.5NM , +/-0.1NM.

In order to calculate QFE from QNH, which of the following must be known?. Elevation of the airfield and the temperature at MSL. Temperature at the airfield. Elevation of the airfield. Elevation and the temperature at the airfield.

What is the approximate vertical interval which is equal to a pressure change of 1 hPa at an altitude of 5500 m?. 8m (27'). 64m (210'). 15m (50'). 32m (105').

What positions are connected by contour lines on a weather chart?. Positions with the same wind speed. Positions with the same height in a chart of constant pressure. Positions with the same thickness between two constant pressure levels. Positions with the same air density.

Two factors which contribute to the formation of radiation fog are. A high relative humidity and clear night skies. Clear night skies and a low relative humidity. At high relative humidity and no wind. A light wind (5 to 8 knots) and good cloud cover.

The isobars drawn on a surface weather chart represent lines of equal pressure. Reduced to sea level. At a determined density altitude. At flight level. At the height of the observatory.

Fog and cloud formation takes place by : Condensation. None of the above. Evaporation. Sublimation.

What is the most likely temperature at the tropical tropopause?. -35 C. -55 C. -75 C. -25 C.

Under what condition is pressure altitude and density altitude the same value?. When the altimeter setting is 1013 hg. When indicated, and pressure altitudes are the same value on the altimeter. At standard temperature. When the altimeter setting is 29.92 hg.

The percent by volume of the gases to be found in the atmosphere is distributed according to size as follows : More nitrogen than oxygen. More oxygen than nitrogen. Less oxygen than carbon dioxide. Less nitrogen than water vapor.

The absolute ceiling is defined as : The altitude where the rate of climb is maximum. The outer boundary of our galaxy. The altitude where the maximum rate of climb is 0 ft/minute. The altitude where a certain maximum rate of climb (ex;100ft/min is attained).

Given a surface temperature of +10 C, and a dew point of +5 C, at what height might you expect cumulus clouds to form : 4000 ft. 1000 ft. 2000 ft. 6000 ft.

Gross performance is : The minimum performance which a fleet of airplanes should achieve if satisfactorily maintained and flown in accordance with the techniques described in the manual. The maximum performance which a fleet of airplanes should achieve if satisfactorily maintained and flown in accordance with the techniques described in the manual. The average performance which a fleet of airplanes should achieve if satisfactorily maintained and flown in accordance with the techniques described in the manual. 65 percent of net perfomance.

The amount of water vapor which air can hold largely depends on : Stability of Air. Dew point. Relative Humidity. Air Temperature.

You are departing an airport (Altimeter setting 29.88) and proceed to another airfield (195ft AMSL) with the same altimeter setting. After landing, which barometric setting on the altimeter makes it again indicate 500ft. 30.32. 29.44. 29.29. 30.57.

The purpose of the horizontal stabilizer is to : Give the airplane sufficient longitudinal stability. Give the airplane sufficient lateral stability. Give the airplane sufficient directional stability. Give the airplane enough weight in the tail.

Which of the equations below expresses approximately the un-accelerated percentage climb gradient for small climb angles?. Climb gradient = ((Thrust - Drag) / Weight) x 100. Climb gradient = ((Thrust + Drag) / Lift) x 100. Climb gradient = ((Thrust - Mass) / Lift) x 100. Climb gradient = (Lift/Weight) x 100.

In which layer is most of the atmospheric humidity concentrated?. Tropopause. Stratopause. Troposphere. Stratosphere.

In the following METAR CYKF 271617Z AUTO 24009KT 220V280 6SM -SN BKN014 BKN019 BKN039 OVC048 M03/M05 A2982 RMK SLP115= The above SPECI has winds that vary from ____ degrees true to _____ degrees. A Variation in wind direction is only provided when the wind varies from _____ degrees or more. 220, 280, 30. 271, 617, 30. 220, 280, 60. 024, 009, 60.

The coefficient of lift can be increased either by flap extension or by. decreasing the 'nose up' elevator trim setting. increasing the CAS. increasing the TAS. increasing the angle of attack.

You observe the altimeter in a parked aircraft shortly AFTER an active cold front has passed. What does the altimeter indicate?. It increases. The pressure changes are very small and therefore, there is no visible change of the indication. It is not affected by a pressure change. It decreases.

The QNH at an airfield located 0 metres above sea level is 1022 hPa. The air temperature is not available. What is the QFF?. Less than 1022 hPa. 1022 hPa. It is not possible to give a definitive answer. More than 1022 hPa.

Density altitude is the : Height above the surface. Pressure altitude corrected for 'non standard' temperature. Altitude reference to the standard datum plane. Altitude read directly from the altimeter.

What is the primary cause of all changes in the Earths weather?. Changes in air pressure over the Earths surface. Variation of solar energy at the Earths surface. None of the above. Movement of air masses from moist areas to dry areas.

Given:VS= Stalling speed VMCA= Air minimum control speed VMU= Minimum unstick speed (disregarding engine failure) V1= take-off decision speed VR= Rotation speed V2 min.= Minimum take-off safety speed VLOF: Lift-off speed The correct formula is: V2min < VMCA < VMU. VR < VMCA < VLOF. VS < VMCA < V2min. VMU < VMCA < V1.

Lines connecting points of equal pressure are called : Isogonic lines. Agonic. Isobars. Barometric.

The pressure at sea level in the ISA is : 1012.35 hPa. 29.95 in Hg. 1013.25 hPa. 1025.13 hPa.

The scheduled landing distance required is the distance : From the point at which the aircraft is 50 meters above the runway to the point at which the aircraft has come to a complete stop. From touchdown to the point at which the aircraft has decelerated to a speed of 20 knots. From touchdown to the point at which the aircraft has come to a complete stop. From a screen of a designated height to the point at which the aircraft has come to a complete stop.

Where is the Ozone Layer?. Ionosphere. Troposphere. Tropopause. Stratosphere.

The temperature gradient in the international standard atmosphere (ISA) is : 1 C / 100m. 0.65 C / 100m. 0.6 C / 100m. 0.5 C / 100m.

For small multiengine aircraft weighing less than 6000 lbs a (light twin) : The single-engine rate of climb simply cannot be a negative number. The single-engine rate of climb at 5000 MSL must be determined. The single-engine rate of climb must be 50FPM or greater. The single-engine rate of climb gradient must be 1.43% at 5000 MSL.

Which constant pressure altitude chart is standard for a 4781 ft pressure level (FL50). 225 mmHg. 525 mmHg. 637 mmHg. 375 mmHg.

For single engine class B airplane, V2 may not be less than : Not applicable. 1.2 Vs. 1.15 Vs. 1.5 Vs.

The altimeter consists of one or several aneroid capsules located in a sealed casing. The pressure in the aneroid capsule (i) and casing (ii) are respectively: (i) total pressure (ii) static pressure. (i) vacuum (or a very low pressure) (ii) static pressure. (i) static pressure at time t (ii) static pressure at time tt. (i) static pressure (ii) total pressure.

The 'climb gradient' is defined as the ratio of : Rate of climb to true airspeed. The increase of altitude to distance above ground expressed as a percentage. The increase of altitude to horizontal air distance expressed as a percentage. True airspeed of rate of climb.

How does the level of the tropopause vary with latitude in the Northern Hemisphere?. It varies with longitude not latitude. Decrease North - South. Decrease South - North. Constant.

What are the standard temperature and pressure values at sea level?. 59C and 1013.2 millibars. 15C and 29.92" Hg. 0C and 1013.2 bar. 59 F and 29.92 millibars.

The speed VS is defined as. Design stress speed. Stalling speed or minimum steady flight speed at which the airplane is controlled. Safety speed for take off in case of a contaminated runway. Speed for best specific rage.

You observe the altimeter in a parked aircraft shortly BEFORE an active cold front passes. What does the altimeter indicate?. The pressure changes are very small and therefore, there is no visible change of the indication. It increases. It decreases. It is not affected by a pressure change.

On a Sectional chart, a thin line with "VR259" in black block letters indicates. To VFR military training route below 1500 AGL. To Victor airway. An IFR military training route below 1500 AGL. A GPS-only IFR route.

As a parcel of air warms, its ability to hold water vapor : Decreases. Unable to say - it also depends on the pressure. Remains unaltered. Increases.

What are the standard temperature and pressure values at sea level?. 59 deg C and 1013.2 millibars. 0 deg C and 1013 hPa. 59 deg F and 29.92 millibars. 15 deg C and 1013.25 hPa.

The QNH at an airfield located 200 metres ABOVE sea level is 1009 hPa. The air temperature is 10°C lower than a standard atmosphere. What is the QFF?: 1009 hPa. It is not possible to give a definitive answer. Less than 1009 hPa. More than 1009 hPa.

The stalling speed or the minimum steady flight speed at which the airplane is controllable in landing configuration is abbreviated as. VS1. VS. VMC. VSO.

VLO is defined as : The maximum speed for landing gear operation. The long range cruise speed. Minimum possible speed that the aircraft could lift off the ground. Actual speed that the aircraft lifts off the ground.

Contact apporaches : Can only be initiated by pilot request. May be requested by the pilot to an airfield without an Instrument Approach Procedure. May be issued to the aircraft by ATC upon entering the Terminal Control Area. Require at least 3SM flight visibility.

Which would normally be the longest possible distant : TORA (Take off runway available). LDA (landing distance available). TODA (take off distance available). ASDA (accelerate stop distance available).

An aircraft flying into the territory of the DC FRZ and DC SFRA must. Comply with ATC instructions. Follow the rules of the ADIZ. Follow the rules of TFR. For VFR flight within 60NM, complete the FAA online ADIZ training course.

During flight in IMC, the most reliable sense which should be used to overcome illusions is the : Visual sense by looking outside. Visual sense, Interpreting the attitude indicator. "Seat of the pants sense". Vestibular sense.

You intend to overfly a mountain ridge at an altitude of 15000 ft AMSL. The average air temperature is 15° C lower than ISA, the sea level pressure 1003 hPa. Which altimeter indication (standard setting) is needed?. 15630 ft. 16170 ft. 14370 ft. 13830 ft.

What positions are connected by isobars on the surface weather chart?. Positions with the same air pressure at a given level. Positions with the same wind velocity at a given level. Positions with the same temperature at a given level. Positions with the same relative pressure heights.

During a flight over the sea at FL 135 the True Altitude is 13'500 ft: local QNH is 30.09 In. What information, if any, can be gained about the air mass in which the aircraft is flying ?. Its average temperature is the same as ISA. There is insufficient information to make any assumption. It is colder than ISA. It is warmer than ISA.

You observe the altimeter in a parked aircraft while a cold front passes the airport. What does the altimeter indicate?. It first increase and then decreases. It first decreases and then increases. It is not affected by a pressure change. The pressure changes are very small and therefore, there is no visible change of the indication.

Reduced vertical separation minumum (RVSM). Can only be flown by registered air carriers operating under FAR 121 OpSpecs. Requires that aircraft operators (airlines or corporate operators) must receive approval from the aircraft's state of registry to conduct operations in RVSM airspace. Are required for flight above FL290. May only be flown by aircraft with specially certified altimeters in a CRM environment.