Atmospheric Pressure

1.       Winds in a low pressure

a.    Converge

b.      Diverge

c.      Go straight

2.       Low pressure is associated with

a.      Good Weather

b.    Bad Weather

c.      None

3.       In a high pressure area winds are

a.      Normal

b.      Strong

c.    Weak

4.       Flying from Low to High an altimeter would read

a.      Over

b.    Under

c.      constant

5.       Isallobars are lines of equal

a.      Pressure

b.      Temperature Tendency

c.    Pressure Tendency

6.       What kind of a barometer is an altimeter?

a.    Aneroid

b.      Mercury

c.      Alcohol

7.       A region between two Lows and Two Highs is

a.      Depression

b.      Secondary Low

c.    Col

8.       Bad weather and better visibility is associate with

a.      High

b.    Low

c.      Col

9.       The relationship between height and pressure is made use in construction of

a.    Altimeter

b.      ASI

c.      V S I

10.   Altimeter always measure the ht of aircraft

a.      Above MSL

b.      Above datum level of 1013.2 hPa

c.    Above datum level at which its sub-scale is set

11.   Two aircraft flying at the same indicated altitude with their altimeter set  to 1013.2 hPa. One is flying over cold air mass and other over warm air mass. Which of the two has greater altitude?

a.    Ac flying over warm air mass

b.      Ac flying over cold air mass

12.   The rate of fall of pressure with height in a warm air mass compared to cold air mass will be

a.      Same

b.      More

c.    Less

13.   An increase of 1000 feet in elevation near the earth is associated with decrease of pressure of

a.      100 hPa

b.      1000 hPa

c.      3 hPa

d.    33 hPa

14.   Lines drawn through places of equal pressure are known as

a.    Isobars

b.      Isotherms

c.      Isogonal

d.      Isoclinal

15.   Isoclinal

a.      Trough has frontal characteristics

b.    After crossing the axis of trough winds back

c.      After crossing the axis of trough winds veer

16.   Diurnal pressure changes are most pronounced in

a.      Polar region

b.      Middle latitudes

c.    Tropics

17.   Flying from Delhi to Calcutta at constant indicated altitude but, experiencing a drift to Starboard. The actual altitude will be (Vis-a-vis) indicated altitude

a.    Lower

b.      Same

c.      Higher

18.   In the Southern Hemisphere, around a Low Pressure Area wind blows

a.    In clockwise direction

b.      In anticlockwise direction

c.      Across isobars towards the centre

19.   If altimeter reads aerodrome elevation when a/c is on ground, its sub-scale must have been set

a.    QNH

b.      QNE

c.      QFF

d.      QFE

20.   Instrument for recording pressure is called

a.      Anemograph

b.    Barometer

c.      Hygrograph

21.   Poor visibility is associated with

a.    High

b.      Low

c.      Col

22.   On either side of    pressures rise

a.    Trough

b.      Ridge

c.      Low

23.   Fall of pressure with height is more rapid in

a.    Cold areas

b.      Warm areas

c.      Humid areas

24.   300 hPa in ISA corresponds to the level

a.      20,000ft

b.    30,000 ft

c.      35,000 ft

25.   18,000 ft height in ISA corresponds to level

a.      700 hPa

b.      200 hPa

c.    500 hPa

26.   200 hPa in ISA corresponds to the level

a.      20,000ft

b.      30,000 ft

c.    40,000 ft

27.   24,000 ft height in ISA corresponds to level

a.    400 hPa

b.      500 hPa

c.      300 hPa

28.   700 hPa in ISA corresponds to the level

a.      20,000ft

b.    10,000 ft

c.      18,000 ft

29.   40,000 ft height in ISA corresponds to level

a.      400 hPa

b.      500 hPa

c.    200 hPa

30.   850 hPa in ISA corresponds to the level

a.      7,000ft

b.    5,000 ft

c.