Practice Set-2 Total points 74/83
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Ruthreshwaran M
74 of 83 points
The pressure of the atmosphere: 1/1
MX0302
decreases at a constant rate up to the tropopause and then remains constant
decreases at an increasing rate as height increases
decreases at a decreasing rate as height increases
decreases at a constant rate as height increases
The aerodrome QNH is the aerodrome barometric pressure: 1/1
MX1102
corrected to mean sea level assuming standard atmospheric conditions exist
corrected to MSL using ambient temperature
corrected for temperature and adjusted to MSL assuming standard atmosphere
conditions exist
corrected to mean sea level, assuming isothermal conditions exist
#The QFF is the atmospheric pressure: 0/1
MX0602
corrected for temperature difference from standard and adjusted to MSL assuming
standard atmospheric conditions exist
at the place where the reading is taken
at a place where the reading is taken corrected to MSL considering the prevailing
temperature conditions
as measured by a barometer at the aerodrome reference point
Correct answer
at a place where the reading is taken corrected to MSL considering the prevailing
temperature conditions
A contour of 9160 m can be expected on a constant pressure chart for 1/1
pressure level
MI3302
300 hPa
200 hPa
500 hPa
400 hPa
*In temperate latitudes in summer, what conditions would you expect in 0/1
the centre of a high-pressure system?
MX03-024
Thunderstorms
Showers
Calm winds, haze
Dense cloud
Correct answer
Calm winds, haze
What type of inversion occurs when a stable layer lies in a high-pressure 1/1
area
MI3802
Subsidence
Negative
Airmass
Radiation
** Two aircraft flying at the same indicated altitude with their altimeter set1/1
to 1013.2 hPa. One is flying over cold air mass and the other over warm
air mass. Which of the two has greater altitude?
MI1102
Ac flying over warm air mass
inadequate data
Ac flying over cold air mass
*What is the vertical movement of air relating to a trough? 1/1
MX09-024
Ascending and diverging
Descending and diverging
Converging and ascending
Descending and converging
An aerodrome is at the mean sea level. Its QNH is 1014.0 hPa. Its QFF will 1/1
be
MI4102
1013.25 hPa
1014.0 hPa
Difficult to tell
More than QNH
* An airfield in England is 200 m above sea level, QFF is 1030 hPa, the 0/1
temperature at the surface is +5°C. What is the value of QNH?
MX1502A
Same as QFF
Less than 1030 hPa
Impossible to determine
More than 1030 hPa
Correct answer
Less than 1030 hPa
Feedback
temperature at surface is +5 so ISA deviation is = -ve
Then use the trick
*** The rate of fall of pressure with height in a warm air mass compared 1/1
to cold air mass will be
MI1202
Same
More
Less
*** The QNH at an airfield 200 m AMSL is 1009 hPa; air temperature is 1/1
10°C lower than standard. What is the QFF?
MX05-024
Less than 1009 hPa
Not possible to give a definite answer
1009 hPa
More than 1009 hPa
The pressure of 1013 hPa is known as: 1/1
MX0702
Standard Pressure Setting
QFF
QNH
QFE
The altimeter of a/c on the ground reads aerodrome elevation, its subscale 1/1
is set to
MI1902
QNH
QFF
QNE
QFE
In the Southern Hemisphere, around a Low-Pressure Area wind blows 1/1
MI1802
In clockwise direction
In anticlockwise direction
Across isobars towards the centre
The movement of wind in relation to a cyclone is 1/1
MI4002
Ascending and converging
Ascending and diverging
Descending and subsiding
Descending and cooling
# When an altimeter subscale is set to the aerodrome QFE, the altimeter 1/1
reads:
MX1002
the appropriate altitude of the aircraft
the elevation of the aerodrome at the aerodrome reference point
zero at the aerodrome reference point
the pressure altitude at the aerodrome reference point
//not important // In a constant pressure chart of 500 hPa, isohypse are 1/1
drawn at an interval of
MI3502
80 gpm
40 gpm
60 gpm
20 gpm
* The average pressure found at a height of 1620 m in mid-latitudes would 1/1
be:
MX26-024
350 hPa
400 hPa
850 hPa
950 hPa
# The instrument that gives a continuous printed reading and record of 1/1
the atmospheric pressure:
MX0202
hygrometer
barometer
barograph
anemograph
When considering the actual tropopause which statement is correct? 1/1
MX0402
It is the same height of 36 090 ft all over the world
It is high over the poles and low over the Equator
It is low over the poles and high over the Equator
It is at a constant altitude of 26 000’
** How would you characterize an air temperature of -15°C at the 700 hPa 1/1
level over western Europe?
MX1501
High
Within +/-5°C of ISA
20°C below standard
Low
Feedback
atmosphere is 10C colder than ISA, means at the surface pressure will be high.
but in the question ---- character of the wind at 700 hPa level - upper level.
when surface pressure is high ---- upper level low pressure ((( ans))
Semi Diurnal pressure changes are most pronounced in 1/1
MI1602
Tropics
Polar region
Middle latitudes
Pressure will _________ with increase of height and will be about __________ 1/1
at 10 000 ft and ___________ at 30 000 ft.
MX1402
Increase; 800 hPa; 400 hPa
Increase; 200 hPa; 800 hPa
Decrease; 700 hPa; 300 hPa
Poor visibility is associated with 1/1
MI2102
Col
High
Low
*What is the vertical movement of air relating to a ridge? 1/1
MX10-024
Ascending and diverging
Ascending and converging
Descending and converging
Descending and diverging
Atmospheric pressure may be defined as: 1/1
MX0502
a pressure exerted by the atmosphere of 1013.2 hPa
the weight of the atmosphere exerted on any surface with which it is in contact
the weight of the atmosphere at standard sea level
the force per unit area exerted by the atmosphere on any surface with which it
is in contact
//not important // In a contour chart of 300 hpa, isohypse (contours) are 1/1
drawn at an interval of
MI3402
80 gpm
40 gpm
20 gpm
60 gpm
What kind of a barometer is an altimeter? 1/1
MI0602
Aneroid
Alcohol
Mercury
24,000 ft height in ISA corresponds to the level 1/1
MI2702
500 hPa
400 hPa
300 hPa
A neutral region between two Lows and Two Highs is 1/1
MI0702
Col
Depression
Secondary Low
### On a surface weather chart, isobars are lines of: 1/1
MX16-024
QFF
QFE
QNE
QNH
The barometric pressure at the airfield datum point is known as: 1/1
MX0102
QFE
QNH
Standard Pressure
QFF
40,000 ft height in ISA corresponds to the level 1/1
MI2902
400 hPa
200 hPa
500 hPa
200 hPa in ISA corresponds to the level 1/1
MI2602
30,000 ft
40,000 ft
20,000ft
*The airfield is 69 meters below sea level, QFF is 1030 hPa, the 1/1
temperature is ISA -10°C. What is the QNH?
MX08-024
Impossible to tell
More than 1030 hPa
Less than 1030 hPa
1030 hPa
300 hPa in ISA corresponds to the level 1/1
MI2402
35,000 ft
30,000 ft
20,000 ft
The 200 hPa pressure altitude level can vary in height. In temperate regions 1/1
which of the following average heights is applicable?
MX0401
FL50
FL390
FL100
FL300
*** At a certain position, the temperature on the 300 hPa chart is -54°C, and 0/1
according to the significant weather chart, the tropopause is at FL330.
What is the most likely temperature at FL350?
MX0601
-56.5°C
-48°C
-64°C
-60°C
Correct answer
-60°C
Feedback
300 hPa = 30000 feet
given at 30000fett temp is -54 C.
Temp at 33000 = -54 -6 = -60 C
because FL350 will be in the tropopause an temperature is constant = so at FL350 temp =
-60C ----ANS
Isobars are lines of equal 1/1
MI0502
Pressure Tendency
Pressure
Temperature Tendency
Flying from Low to High an altimeter would read 1/1
MI0402
Over
constant
Under
*** Air at the upper levels of the atmosphere is diverging. What would you 0/1
expect at the surface?
MX13-024
Rise in pressure with clouds dissipating
Fall in pressure with cloud forming
Rise in pressure with clouds forming
Fall in pressure with cloud dissipating
Correct answer
Fall in pressure with cloud forming
Feedback
for cloud formation we require updraft ( climbing air ).
{ air climb, WV condenses and forms cloud )
----> subsidence ( sinking of air ) opposes cloud formation.
-- cloud dissipates
850 hPa in ISA corresponds to the level 1/1
MI3002
5,000 ft
7,000ft
10,000 ft
### You are flying at FL170. The pressure level which is closest to you is 1/1
the:
MX15-024
850 hPa
700 hPa
500 hPa
300 hPa
Which constant pressure altitude chart is standard for 4781 ft pressure 1/1
level (FL50)?
MX0801
300 hPa
700 hPa
500 hPa
850 hPa
Winds in a low pressure 1/1
MI0102
Go straight
Converge
Diverge
*** Flying from Delhi to Calcutta at constant indicated altitude but, 1/1
experiencing a drift to Starboard. The actual altitude will be ………………….
than indicated altitude
MI1702
Lower
Higher
Same
The relationship between height and pressure is made use in the 1/1
construction of
MI0902
ASI
VSI
Altimeter
Low pressure is associated with 1/1
MI0202
None
Good Weather
Bad Weather
At which average height can the 500 hPa pressure level be expected in 0/1
moderate latitudes?
MX25-024
9.0 km
3 km
5.5 km
12.2 km
Correct answer
5.5 km
The aircraft altimeter will read zero at aerodrome level with which pressure 1/1
setting set on the altimeter subscale:
MX0802
QNH
SPS
QFE
QFF
Which is true 1/1
MI1502
At trough winds back in N - hemisphere
At trough winds veer in Nhemisphere
Trough has frontal characteristics
Feedback
Near Low/Cyclone / hurricane / depression , Trough ----- Wind backs
Near High/Anticyclone , Ridge ------ wind Veers
### A steep pressure gradient is characterized by: 1/1
MX01-024
isobars close together, temperature increasing
isobars far apart, temperature decreasing
isobars far apart, decreased wind
isobars close together, strengthened wind
At FL60 what pressure chart would you use? 1/1
MX17-024
1000 hPa
500 hPa
700 hPa
800 hPa
** QNH at the airfield (200 m AMSL) is 1015 hPa. What is the QFE? 1/1
(Assume 1 hPa = 8 m)
MX02-024
1020 hPa
995 hPa
1000 hPa
990 hPa
Winds in high pressure 1/1
MI0102a
Converge and sinks
Converge and climbs
Diverges and climbs
Diverges and sinks
An instrument for recording pressure is called 1/1
MI2002
Hygrograph
Barometer
Anemograph
An aircraft is gaining altitude, in spite of altimeter reading constant 1/1
altitude. why?
MI3202
Standard pressure has risen
Flying Towards Low
Flying towards High
Temperature has decreased
***Aerodrome at MSL, QNH is 1022 hPa. QFF is: 1/1
MX12-024
greater than 1022 hPa
cannot tell without temperature information
same as QNH
less than 1022 hPa
18,000 ft height in ISA corresponds to the level 1/1
MI2502
500 hPa
200 hPa
700 hPa
Fall of pressure with height is more rapid in 1/1
MI2302
Warm areas
Cold areas
Humid areas
***Landing at an airfield with QNH set the pressure altimeter reads: 1/1
MX07-024
the elevation of the airfield
zero
the elevation of the airfield if ISA conditions prevail
zero feet on landing only if ISA conditions prevail
**** In a Level flight aircraft is moving towards higher contour value which 0/1
signified that ________________________.
MI3202a
Flying Towards Low
Standard pressure has risen
Temperature has decreased
Flying towards High
Correct answer
Flying towards High
Lines drawn through places of equal pressure are known as 1/1
MI1402
Isogonal
Isoclinal
Isotherms
Isobars
#On either side, perpendicular to the ………... pressures rise 0/1
MI2202
Low
Ridge
Trough
Correct answer
Trough
Feedback
RIDGE -----along the line pressure is highest so both side of the ridge pressure will be
falling.
Trough -----along the line pressure is Lowest so both side of the Trough pressure will be
Rising.
# What is subsidence? 1/1
MX11-024
Vertical up draught of air
Vertical down draught of air
Adiabatic cooling
Horizontal motion of air
Atmospheric pressure is due to 1/1
MI3102
density
temperature
wind
gravity
**If the pressure level surface bulges upwards, the pressure system is a: 1/1
MX04-024
warm/low
cold/low
cold/high
warm/high
# Altimeter always measure the height of aircraft above 1/1
MI1002
datum level at which its sub-scale is set
datum level of 1013.2 hPa
MSL
A line drawn on a chart joining places having the same barometric pressure1/1
at the same level and at the same time is:
MX1202
a contour
an isobar
an isallobar
an isotherm
700 hPa in ISA corresponds to the level 1/1
MI2802
18,000 ft
20,000ft
10,000 ft
In a high-pressure area, winds are 1/1
MI0302
Normal
Weak
Strong
** Steep Pressure gradient would mean 1/1
MI3702
Contours far apart and strong wind
Contours far apart and weak wind
Isobars far apart and temperature low
Isobars tightly packed and strong wind
QNH is defined as: 1/1
MX06
QFE reduced to MSL using the standard atmosphere
the pressure at MSL obtained using the standard atmosphere
the pressure at MSL obtained using the actual conditions
QFE reduced to MSL using the actual conditions
On either side, perpendicular to the ………... pressures falling. 1/1
MI2202a
Ridge
Low
Trough
Feedback
RIDGE -----along the line pressure is highest so both side of the ridge pressure will be
falling.
Trough -----along the line pressure is Lowest so both side of the Trough pressure will be
Rising.
** An airfield in England is 100 m above sea level, QFF is 1030 hPa, the 1/1
temperature at the surface is -15°C. What is the value of QNH?
MX1502
Less than 1030 hPa
Same as QFF
Impossible to determine
More than 1030 hPa
## Subsidence would be described as: 1/1
MX14-024
vertical down flow of air
vertical ascension of air
horizontal movement of air
the same as convection
QNH of an aerodrome 160 m AMSL is 1005 hPa. QFE? (Assuming 1 hPa = 1/1
8 m)
MI3602
990 hPa
985 hPa
1005 hPa
1010 hPa
Bad weather and better visibility is associate with 1/1
MI0802
Col
High
Low
** Which of the following would cause true altitude to increase when the 1/1
altimeter indicates constant altitude?
MI3902
Cool/Low
Hot/High
Warm/Low
Cold/Low
An isobar on a meteorological chart joins all places having the same: 1/1
MX1301
QFE
standard pressure
QNH
QFF
** The aerodrome QFE is: 0/1
MX0902
the reading on the altimeter on an aerodrome when the sea level barometric
pressure is set on the subscale
the aerodrome barometric pressure
the reading on the altimeter on touchdown at an aerodrome when 1013 is set on
the subscale
the reading on the altimeter on an aerodrome when the aerodrome barometric
pressure is set on the subscale
Correct answer
the aerodrome barometric pressure
An increase of 1000 ft at MSL is associated with a decrease in the 1/1
pressure of
MI1302
3 hPa
33 hPa
100 hPa
1000 hPa
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