WEATHER THEORY

Question 1

THIN VAIL OF ATMOSPHERE EXTENDING FROM THE SURFACE TO 7 MILES OUT

Answer 1

TROPOSPHERE

Question 2

TROPOSPHERE

Answer 2

WEATHER OCCURS HERE

Question 3

AIR PRESSURE DECREASES

Answer 3

WITH ALTITUDE

Question 4

AIR PRESSURE DECREASES

Answer 4

WITH ALTITUDE

Question 5

LESS DENSE AIR EQUALS

Answer 5

DECREASED PERFORMANCE

Question 6

DEWPOINT

Answer 6

THE TEMP TO WHICH AIR MUST BE COOL TO BECOME SATURATED

Question 7

WHICH STAGE OF THUNDERSTORM IS CHARACTERIZED BY DOWNDRAFT?

Answer 7

DISSIPATING

Question 8

WHAT MAY CREATE DOWNDRAFTS THAT AFFECT UAS PERFORMANCE?

Answer 8

WATER AND VEGITATION, BECAUSE THEY ABSORB WARM AIR AND CREATE COOL AREAS

Question 9

THUNDERSTORMS REACH THEIR GREATEST INTENSITY DURING THE

Answer 9

MATURE STAGE

Question 10

WHAT CLOUDS INDICATE CONVECTIVE TURBULANCE

Answer 10

TOWERING CUMULUS CLOUDS, THEY ARE UNSTABLE RISING AIR. UPWARD MOTION (CONVECTION) IS ACCOMPANIED BY SIGNIFICANT TURBULANCE

Question 10

WHAT CLOUDS INDICATE CONVECTIVE TURBULANCE

Answer 10

TOWERING CUMULUS CLOUDS, THEY ARE UNSTABLE RISING AIR. UPWARD MOTION (CONVECTION) IS ACCOMPANIED BY SIGNIFICANT TURBULANCE

Question 11

SQUALL LINE

Answer 11

NONFRONTAL NARROW BAND OF ACTIVE THUNDERSTOMRS THAT OFTEN DEVELOP AHEAD OF A COLD FRONT

Question 12

SQUALL LINE

Answer 12

NONFRONTAL NARROW BAND OF ACTIVE THUNDERSTOMRS THAT OFTEN DEVELOP AHEAD OF A COLD FRONT

Question 13

ONE WEATHER PHENOMENON WHICH WILL ALWAYS OCCUR WHEN A FRONT PASSES IS A CHANGE IN THE

Answer 13

WIND DIRECTION

Question 14

ONE OF THE MOST EASILY RECOGNIZED DISCONTINUITIES ACROSS A FRONT IS

Answer 14

CHANGE OF TEMP

Question 15

CONVECTIVE CIRCULATION PATTERNS ASSOCIATED WITH SEA BREAZES ARE CAUSED BY

Answer 15

COOL DENSE AIR MOVING INLAND FROM OVER THE WATER

Question 15

CONVECTIVE CIRCULATION PATTERNS ASSOCIATED WITH SEA BREAZES ARE CAUSED BY

Answer 15

COOL DENSE AIR MOVING INLAND FROM OVER THE WATER

Question 16

WHAT FEATURE IS NORMALLY ASSCOCIATED WITH THE CUMULUS STAGE OF A THUNDERSTORM

Answer 16

CONTINOUS UPDRAFT

Question 17

WHAT FEATURE IS NORMALLY ASSCOCIATED WITH THE CUMULUS STAGE OF A THUNDERSTORM

Answer 17

CONTINOUS UPDRAFT

Question 18

DEVELOPMENT OF THERMALS DEPENDS UPON

Answer 18

SOLAR HEATING

Question 19

DEW, FOG, CLOUDS FORM WHEN

Answer 19

WATER VAPOR CONDENSES, AKA WHEN TEMP AND DEW POINT CONVERGE

Question 19

DEW, FOG, CLOUDS FORM WHEN

Answer 19

WATER VAPOR CONDENSES, AKA WHEN TEMP AND DEW POINT CONVERGE

Question 20

WHAT ARE THE PROCESSES BY WHICH MOISTURE IS ADDED TO UNSATURATED AIR

Answer 20

EVAPORATION AND SUBLIMATION

Question 21

CUMULONIMBUS FORMATION

Answer 21

LIFTING ACTION, AND UNSTABLE MOIST AIR

Question 21

CUMULONIMBUS FORMATION

Answer 21

LIFTING ACTION, AND UNSTABLE MOIST AIR

Question 22

EVERY PHYSICAL PROCSS OF WEATHER IS ACCOMPANIED BY

Answer 22

HEAT EXCHANGE

Question 23

BOUNDARY BETWEEN 2 DIF AIR MASSES IS REFFERED TO A

Answer 23

FRONT

Question 23

BOUNDARY BETWEEN 2 DIF AIR MASSES IS REFFERED TO A

Answer 23

FRONT

Question 24

FROST OCCURS WHEN THE SURFACE IS AT OR BELOW THE DEWPOINT OF THE ADJACENT AIR

Answer 24

AND THE DEWPOINT IS BELOW FREEZING

Question 25

LENTICULAR CLOUDS CAUSE

Answer 25

HIGH WINDS AND TURBULANCE

Question 26

INFLIGHT ICING REQUIRES

Answer 26

VISIBLE MOISTURE

Question 27

INFLIGHT ICING REQUIRES

Answer 27

VISIBLE MOISTURE

Question 28

THE AMOUNT OF WATER VAPOR WHICH AIR CAN HOLD IS DEPENDENT ON

Answer 28

AIR TEMP

Question 29

NIMBUS

Answer 29

RAIN CLOUD

Question 30

DENSITY ALTITUDE

Answer 30

MEASURE OF ATMOSPHERIC DENSITY IN TERMS OF ALTITUDE UNDER STANDARD CONDITIONS

Question 30

DENSITY ALTITUDE

Answer 30

MEASURE OF ATMOSPHERIC DENSITY IN TERMS OF ALTITUDE UNDER STANDARD CONDITIONS

Question 31

STANDARD ATMOSPHERIC CONDITIONS AT SEA LEVEL

Answer 31

59 F AND 29.92”Hg mercury (pressure)

Question 32

true altitude

Answer 32

is msl

Question 33

absolute altitude is

Answer 33

agl

Question 34

standard datum plane

Answer 34

where the standard pressure line is

Question 35

pressure altitude

Answer 35

height above the standard datum plane

Question 36

when conditions are standard

Answer 36

pressure altitude and density altitude are equal

Question 37

density altitude

Answer 37

pressure altitude corrected for nonstandard temp

Question 38

barometric pressure descreases by approx 1’Hg per 1000 ft

Question 39

high density altitude describes low density air

Question 39

high density altitude describes low density air

Question 40

high density altitude describes

Answer 40

low density air, which you should expect reduced performance and shorter battery life