WX 301 - Final Exam Prep

338 flashcards · Other · by Nicholas Enoul

1. Required atmospheric conditions for thunderstorms to form are ________. 1). instability preferably through a deep layer 2). all answers are correct 3). low-level moisture 4). a lifting mechanism Quiz 17 Q1

   2). all answers are correct

2. The temperature at Prescott is 76.4°F and the dew point is 50.0°F. Cumulus clouds will have their base near _____ AGL. A. 6,000 ft B. 4,000 ft C. 5,000 ft D. 3,000 ft Quiz 17 Q2

   A. 6,000 ft Note: the formula to remember is the LCL Since we are given these temperatures in °F, we have to use the first one. --> (76.4 - 50) / 4.4 = 6 --> 6 * 1000 = 6,000 ft AGL

3. Rising parcels of air inside a cumulus cloud cool at ____. 1). the saturated adiabatic lapse rate 2). exactly 2°C per 1,000 ft 3). the dry adiabatic lapse rate 4). the environmental lapse rate Quiz 17 Q3

   1). the saturated adiabatic lapse rate

4. K-index of minus 10 means ______. 1). thunderstorms are extremely unlikely 2). thunderstorms are almost certain 3). thunderstorms are possible but unlikely 4). thunderstorms are fairly likely Quiz 17 Q4

   1). thunderstorms are extremely unlikely Note: K-index between 25-30 is ~50% chance for airmass TS K >40 = 90% chance for airmass TS

5. If the parcel curve is to the right of the environment temperature, then _________. 1). Thunderstorms are likely and LI is negative 2). Thunderstorms are unlikely and LI is positive 3). Thunderstorms are unlikely and LI is negative 4). Thunderstorms are likely and LI is positive Quiz 17 Q5

   1). Thunderstorms are likely and LI is negative Note: if the parcel curve (parcel temperature) is to the right (warmer) of the environment, that means the weather is unstable and TS is likely. Additionally, if LI is ever positive then TS is unlikely. Positive LI = stable environment and parcel.

6. The highest point where the parcel temperature line crosses the environment temperature curve and becomes colder than the environment is called the __________. 1). CAPE 2). Triple point 3). Equilibrium Level 4). LCL Quiz 17 Q6

   3). Equilibrium Level Note: cloud tops out at EL

7. The area of positive nergy between the parcel curve and the environment temperature curve is called: 1). LCL 2). Equilibrium Point 3). Triple Point 4). CAPE Quiz 17 Q7

   4). CAPE Note: cloud tops out at EL

8. An overshooting cloud top indicates the location of _____. 1). A wall cloud 2). the downdraft 3). lighter turbulance 4). the updraft Quiz 17 Q8

   4). the updraft

9. For the sounding above, the surface temperature and dew point are ________. A. 20°C, 12°C B. 20°F, 12°F C. 25°C, 17°C D. 25°F, 17°F Quiz 17 Q9

   C. 25°C, 17°C Note: be very VERY careful with number locations. The temperature numbers are NOT at the bottom, rather, at the middle section of each temperature line.

10. For the sounding above, cloud bases will likely form 1). 3,200 m 2). 3,200 ft 3). 1,800 m 4). 1,800 ft Quiz 17 Q10

    2). 3,200 ft Note: you have to use the LCL equation. Be very VERY careful with number locations. The temperature numbers are NOT at the bottom, rather, at the middle section of each temperature line. --> T= 25°C and Tdp = 17°C --> use these equations [(20-17)/2.5]*1000 = 3,200

11. For the sounding above, the parcel curve is to the _____ of the environmental lapse rate. This means that the atmospheric ________. 1). right, stable 2). left, unstable 3). right, unstable 4). left, stable Quiz 17 Q11

    3). right, unstable

12. For the sounding above, thunderstorms are _____. 1). very likely 2). possible, but not likely 3). very unlikely Quiz 17 Q12

    1). very likely Note: The most secure way to answer this is to use the following equation. K-index between 25-30 is ~50% chance for airmass TS K >40 = 90% chance for airmass TS

13. For the sounding above, the parcel temperature and environmental temperature at 500 mb are ______. A. -11°C, -8°C B. -21°C, -28°C C. -8°C, -11°C D. -3°C, -4°C Quiz 17 Q13

    C. -8°C, -11°C Note: the temperature curves can be seen in the top right section in the middle of the right-angled lines.

14. In reference to meteorology, a trigger is _______. 1). a lifting mechanism that can initiate thunderstorms 2). an area of strong winds that can trigger thunderstorms 3). surface heating that can trigger thunderstorms 4). a region of sinking motion that can trigger thunderstorms. Quiz 17 Q15

    1). a lifting mechanism that can initiate thunderstorms

15. FOr the sounding above, the lifted index (LI) is _____ A. 1 B. -5 C. -3 D. 3 Quiz 17 Q14

    C. -3 Note: you gotta use the following equation A negative LI indicates unstable air (-11°C) - (-8°C) = LI LI = -3

16. Convective inhibition is _______. 1). a stable layer that inhibits convection 2). reduction of convection by sinking motion 3). inhibition of convection that occurs over cold land masses 4). a surface cooling that inhibits convection Quiz 17 Q16

    1). a stable layer that inhibits convection

17. convective inhibition (CIN) can help severe thunderstorms develop because ______. 1). CIN prevents low-level heat and moisture being used up by a lot of smaller storms, so the available energy is used for the few storms that can overcome the CIN. 2). both (1) and (3) 3). Thunderstorms are delayed by CIN, allowing heat and moisture to build up at low levels 4). CIN cools the upper levels, enhancing thee instability Quiz 17 Q17

    2). both (1) and (3)

18. IF the convective inhibtition has an absolute value that is greater than 200J/kg, thunderstorms are _______. 1). possible 2). likely 3). unlikely 4). purple Quiz 17 Q18

    3). unlikely Note: CIN values > ~200J/kg means that storms will not occur.

19. SPC stands for 1). Sigmet prediction (Convection) 2). Special Prediction of Convection 3). Sigmet Production Center 4). Storm Prediction Center 5). Secure, Protect, Contain. Quiz 17 Q19

    4). Storm Prediction Center

20. A convective SIGMET may be issued for hazardous situations such as ______. 1). embedded thunderstorms 2). thunderstorms affecting 40% or more of an area 3). a line of thunderstorms 4). all answers are correct 5). severe thunderstorms Quiz 17 Q20

    4). all answers are correct Note: as a wise man once said, EATSHT Embedded TS A line of TS Tornados Surface winds >50kts Hail >3/4" in diameter TS affecting a 3000 mile area 40% or more.

21. The lifted index indicates the _____ of the atmosphere, while the K-index indicates the _____ of thunderstorm development. 1). stability, probability 2). stability, moisture 3). moisture, probability Quiz 17 Q22

    1). stability, probability

22. Saying tomorrow's weather will be the same as the weather right now is _____. 1). a numerical forecast 2). an analogue forecast 3). a persistence forecast 4). a nowcast Quiz 16 Q1

    4). a persistence forecast

23. ASOS stands for ______. 1). Automated Surface Observation System 2). Automatic Static Observation System 3). Activated Surface Observing System 4). Aromatic Sensual Olfactory Sensitivity Quiz 16 Q2

    1). Automated Surface Observation System

24. Short-term forecasting of thunderstorms by extrapolating the movement of echoes using remote sensing and radar is an example of _______. 1). an analogue forecast 2). pattern recognition 3). a trend forecast 4). persistence forecasting Quiz 16 Q3

    3). a trend forecast

25. Saying the chance of snow on Christmas day is 30% is an example of a ______. 1). a quantitative snow forecast 2). quantitative precipitation forecast 3). a probability forecast 4). an ensemble prediction Quiz 16 Q4

    3). a probability forecast

26. When forecasts from different numerical models differ significantly, the weather is _______. 1). more severe 2). more predictable 3). less predictable 4). an ensemble prediction Quiz 16 Q5

    3). less predictable

27. As forecast lead time increases, forecast skill _______. 1). stays the same 2). decreases 3). increases 4). Increases everytime a mob is spawned Quiz 16 Q6

    2). decreases

28. Assuming the same computing capabilities, a numerical forecast is _____ and ______ accurate when the grid points are further apart. 1). slower, less 2). faster, less 3). slower, more 4). faster, more Quiz 16 Q7

    2). faster, less

29. Forecasting an unfolding flash flood situation by tracking echoes in a radar loop is an example of _____. 1). nowcasting 2). analogue forecasting 3). persistence forecasting 4). model output statistics Quiz 16 Q8

    1). nowcasting

30. Quoting the average wind and temperature for a particular date in the future is an example of _____ forecasting. 1). trend 2). persistence 3). climatological 4). probability Quiz 16 Q9

    3). climatological

31. Which of the following are not global models? 1). The ECMWF 2). The NAM 3). The U.S. Navy's NAVGEM 4). The GFS Quiz 16 Q10

    2). The NAM

32. Parameterization is _____. 1). adding another forecast parameter to an AWIPS display 2). including new observation parameters 3). have the weather forecast model output additional parameters 4). using an equation to represent a process we can't measure directly Quiz 16 Q12

    4). using an equation to represent a process we can't measure directly

33. The process that blends disparate dat sources into a form suitable for running a NWP forecast model is called _____. 1). parameterization 2). initialization 3). a first guess 4). The discombobulation cycle Quiz 16 Q11

    2). initialization

34. The sequence of tasks for numerical weather prediction is first to conduct _____ followed by _____ finally leading to _____. 1). data assimilation, data observation, numerical forecasts 2). data observation, data assimilation, numerical forecast 3). data assimilation, numerical forecast, data observation 4). numerical forecast, data assimilation, data observation Quiz 16 Q13

    2). data observation, data assimilation, numerical forecast

35. An ensemble forecast is a set of several numerical forecasts that differ slightly in _____. 1). model parameterization of physical processes 2). start time 3). model formulation 4). initial conditions Quiz 16 Q14

    4). initial conditions

36. When ensemble members cluster closely around a particular solution, we can conclude that the weather is _____, thus giving the forecaster higher confidence. 1). more severe 2). less predictable 3). more predictable 4). more settled (benign) Quiz 16 Q15

    3). more predictable

37. SREF stands for ____. 1). Silly Raucus Egg-laying Fish (keep the noise down, OK?) 2). Simulated Regression Ensemble Forecast 3). Short Range Ensemble Forecasts 4). Short Range Experimental Forecast Quiz 16 Q16

    3). Short Range Ensemble Forecasts

38. Assuming historical meteorological data is available, climatology is based on ______. 1). projecting climate trends 2). global climate models 3). 30-year averages 4). 15-year averages Quiz 16 Q17

    3). 30-year averages Note: there is no logic - this is just a pure rote memorization thing.

39. An accurate and timely forecast has the potential to ______. 1). Mitigate risk to property 2). save lives 3). increases business efficiencies 4). All answers are correct Quiz 16 Q18

40. In situ observations provide a ground "truth", but limitations of the data occur from ______. 1). lack of temporal coverage 2). random and systematic errors 3). All answers are correct 4). lack of spatial coverage Quiz 16 Q19

    3). All answers are correct

41. If atmospheric conditions are forecast to be favorable for hazardous weather to occur for a specific location, the National Weather Service may issue a ______. 1). Advisory 2). Watch 3). Warning 4). AWACS Quiz 16 Q20

    2). Watch

42. If hazardous weather such as a severe thunderstorm is imminent or already occurring, the National Weather Service will issue a _____. 1). Warning 2). Watch 3). Advisory Quiz 16 Q21

    1). Warning

43. Tornadoes in the U.S. are most common during _____. 1). September to December 2). June to August 3). February to April 4). April to June Quiz 15 Q1

    4). April to June Note: "Spring: tornado activity moves north into Oklahoma and Kansas (maximum in May)."

44. Which of the following phenomena are NOT typically associated with tornadoes? 1). a supercell thunderstorm 2). an airmass thunderstorm 3). a hook echo on radar 4). a wall cloud Quiz 15 Q2

    2). an airmass thunderstorm

45. Advance warning of an imminent tornado is provided by: 1). Large hail 2). frequent lightning 3). suction vortices 4). a hook echo in radar imagery and the appearance of a wall cloud Quiz 15 Q3

    4). a hook echo in radar imagery and the appearance of a wall cloud

46. The most severe tornado damage is related to ______. 1). a strong downburst 2). suction vortices 3). large hail 4). a strong updraft Quiz 15 Q4

    2). suction vortices

47. Suction vortices are _____. 1). rotating clouds that precede a tornado 2). smaller vortices within a tornado funnel 3). vortices near a gust front 4). vortices that occur during intense surface heating Quiz 15 Q5

    2). smaller vortices within a tornado funnel

48. For a tornado moving toward the northeast, strong tornadic winds will be on the _____ side of tornado. (Hint: assume counterclockwise rotation) 1). southeast 2). southwest 3). northwest 4). northeast Quiz 15 Q6

    1). southeast Note: the reason for this is because, in the SE quadrant, both the tornado and the wind movement are going in the same direction - meaning strong wind. As you can see with this HIGH QUALITY and PREMIUM computer aided-visual assistance tool, in the SE quadrant the wind is going NE. Because it is going NE, and the tornado itself is moving NE, winds will be stronger.

49. Tornadic wind speed is estimated using the _____ scale. 1). Enhanced Fujita 2). Fumento 3). Saffir-Simpson 4). Enhanced Fujiwhara 5). Enhanced Funion 6). Enhanced FREEDOM Quiz 15 Q7

    1). Enhanced Fujita

50. Tornadoes occur in ____ of supercell thunderstorms A. the vast majority (>75%) B. less than 10% C. over half (>50%) D. around 25% Quiz 15 Q8

    D. around 25% Note: thanks to a very specific super genius (whose IQ dwarves all of ours combined, except for Sam), below you will find a superb memory aid. Tornadoes, you know, kinda look like tomatoes. Do you know what else is round like a tomato? exactly: quarters. Do you know what quarters represent? 25% BOOM. (I am also sorry if this isn't verbatim - for the holy scriptures I am copying from aren't perfectly preserved in my memory)

51. Worldwide, the most common location for tornadic activity is _______. 1). southeast Asia 2). the United Kingdom 3). The United f*cking States of AMERICA, FREEDOM 4). near Uruguay and Paraguay Quiz 15 Q9

    3). The United f*cking States of AMERICA, FREEDOM

52. A weak echo region (WER) signifies: 1). suction vortices 2). a powerful updraft and chance of large hail 3). tornadoes 4).a powerful downdraft Quiz 15 Q10

    2). a powerful updraft and chance of large hail Note: from what I gather, the reason is because if you have a large updraft, the echo will not detect the rain drops that could get into its range. Instead, those rain/ice drops stay above the echo range, and accumulate more water/ice.

53. With respect to the United States, small hail is most common ____. 1). over the Great Plains 2). over high ground in the western half of the country 3). over Florida 4). along the Gulf coast 5). in the EXACT middle of the Principality of Sealand Quiz 15 Q11

    2). over high ground in the western half of the country Note: the way I remembered this is that, in Prescott, we never get insanely large hail - we get tons of sleet at times though.

54. Hail forms from _____ when supercooled water droplets collide and freeze onto ice crystals 1). aggregation 2). the ice-crystal process 3). collision-coalescence 4). accretion 5). amortization Quiz 15 Q12

    4). accretion

55. Large hail (bigger than 1 inch in diameter) is most common _____. 1). over Florida during the summer 2). in the Pacific northwest during fall 3). over high ground in the western half of the country during summer 4). over the Great Plains during spring Quiz 15 Q13

    4). Over the Great Plains during spring

56. Supercell thunderstorms with large hail are most commonly found _____. 1). over the Gulf coast in winter 2). over the Great Plains in summer 3). over Florida during the summer 4). over the Great plains in late spring Quiz 15 Q14

    4). over the Great plains in late spring

57. Fore a lightning stroke, what is the correct sequence? 1). thunder, bright return stroke, stepped leader 2). none of the below and or above, idk man I am not paid to do this. 3). stepped leader, return stroke, thunder 4). return stroke, stepped leader, thunder Quiz 15 Q15

    3). stepped leader, return stroke, thunder Above is the demonstration of return stroke.

58. The most visible/brightest part of a lightning stroke is the _______. 1). dart leader 2). red sprite 3). sonic 4). return stroke 5). stepped leader Quiz 15 Q16

    4). return stroke

59. Flying at low levels through a microburst, you will experience a ____ followed by a _____. 1). headwind, headwind 2). headwind, tailwind 3). tailwind, tailwind 4). tailwind, headwind Quiz 15 Q17

    2). headwind, tailwind

60. If forced to fly at FL350 around a supercell thunderstorm over the Great Plains, the safest side is typically the: 1). east side 2). as close to a hook echo as you can get 3). the west side 4). through the wall cloud 5). by challenging the supercell thunderstorm to a game of chicken. Quiz 15 Q18

    3). the west side

61. Above a thunderstorm anvil, turbulence is most commonly found ____. 1). anywhere just above the anvil 2). near and downstream of the overshooting top 3). trick question MORTAL; turbulence NEVER occurs in the stratosphere because the GOVERNMENT made UP the stratosphere!!!111!!! 4). upstream of the overshooting top Quiz 15 Q19

    2). near and downstream of the overshooting top

62. The _____ of hail is directly correlated to the ____ of a thunderstorm. 1). frequency, updraft strength 2). size, downdraft strength 3). size, updraft strength 4). frequency, downdraft strength Quiz 15 Q20

    3). size, updraft strength

63. For a multi-cell thunderstorm with low-level flow from the south, new cells typically form: 1). beneath the downdraft 2). south of the mature cell 3). west of the mature cell 4). north of the mature cell Quiz 14 Q1

    2). south of the mature cell Note: the reason, as far as I know, is because when a multi-cell splits off, the largest one splits to the south of the original mature cell (not sure though).

64. Supercell thunderstorms comprise about ____% of all thunderstorms. A. 10 B. 0.01 C. 30 D. 1 Quiz 14 Q2

    D. 1 Note: this has no logic behind it, just pure rote memorization.

65. Severe supercell convection is most common ______. 1). over the Great Plains at 3pm in June-September 2). over Florida at 3pm in May-August 3). over the Great plains at 6 am in July-September 4). over the Great Plains during late afternoon and evening in April-June Quiz 14 Q3

    4). over the Great Plains during late afternoon and evening in April-June

66. A shelf cloud is ____. 1). a shelf-like layer of stratus to the rear of a squall line 2). an over-30 unmarried cumulus cloud in a life-sucking job with no benefits but the over-30 unmarried cumulus cloud can't get out of it because the cloud lost its passion many years ago. 3). a growing cumuls cloud to the rear of a supercell TS 4). a shelf-like cloud that forms above the gust front Quiz 14 Q4

    4). a shelf-like cloud that forms above the gust front

67. An airmass thunderstorm is never classifed as a severe thunderstorm. (True / False) Quiz 14 Q5

    Answer: False

68. Compared with airmass thunderstorm, multi and supercell thunderstorms _____. 1). have slower movement 2). have more vertical shear 3). have a more vertical, symmetric structure Quiz 14 Q6

    2). have more vertical shear

69. What does the supercell have that a multicell storm lacks? 1). Rotation 2). Lightning 3). A low-level current of air from the south 4). Vertical wind shear Quiz 14 Q7

    1). Rotation

70. For the most conducive conditions for supercell thunderstorms to form over the Great Plains, you would expect the 5,000 AGL wind to be _______. A. 190/45 B. 200/15 C. 360/10 D. 240/90 Quiz 14 Q8

    Answer: A. 190/45

71. Severe convection is most likley when the atmosphere is warm and ____ near the surface while cold and ______ aloft with _____ vertical wind shear 1). moist, dry, strong 2). dry, moist, strong 3). moist, moist, weak 4). dry, moist weak 5). dry, dry, strong 6). moist, moist, even more moist Quiz 14 Q9

    1). moist, dry, strong

72. Supercell thunderstorms are most common _______. 1). in the warm sector, east of the cold front 2). in the cold air west of a surface cold front 3). near a low center 4). north of the warm front Quiz 14 Q10

    1). in the warm sector, east of the cold front Note: as far as I know, the reason why this is the case is because you will have moist surface air. With the cold front advancing and shoving that moist surface air to a colder dryer air, you get TS formation.

73. A supercell storm is embedded in an average tropospheric flow from the southwest. The storm will move to the _____. 1). east 2). west 3). southeast 4). northeast Quiz 14 Q11

    1). east

74. The low-level jet commonly occurs at a level of around _____ AGL and is strongest in the _____. 1). 5,000 ft, afternoon 2). 5,000 ft, evening 3). 1,000 ft, morning 4). 10,000 inches, afternoon Quiz 14 Q12

    2). 5,000 ft, evening

75. A wall cloud is ____ 1). a wall-like cloud in rising air ahead of the gust front 2). a rotating cloud hanging below the main base of a supercell 3). a wall-like cloud marking the precipitation shaft 4). a wall-like cloud that forms above the TS top Quiz 14 Q13

    2). a rotating cloud hanging below the main base of a supercell

76. Which of the following wind profiles is most likely for a supercell thunderstorm environment? A. 180/10, light and variable, light and variable B. 220/15, 220/40, 220/90 C. 150/20, 180/30, 240/70 D. 160/20, 190/45, 250/90 Quiz 14 Q14

    D. 160/20, 190/45, 250/90 Note: the reason it isn't C. is because of the wind velocities, not direction. 30 kts vs 45 kts is a more drastic difference.

77. Which of the wind profiles above is most likely the environment for an airmass thunderstorm? A. 180/10, light and variable, light and variable B. 220/15, 220/40, 220/90 C. 150/20, 180/30, 240/70 D. 160/20, 190/45, 250/90 Quiz 14 Q15

    A. 180/10, light and variable, light and variable

78. In a downdraft, cold air descends, hits the ground and spread out horizontally. The leading edge of the expanding cold air is called the ______. 1). flanking line 2). wall cloud 3). meso low 4). ouflow boundary Quiz 14 Q16

    4). ouflow boundary

79. The flanking line is a line towering cumulus clouds on the _____ side of a ____ thunderstorm. 1). north, supercell 2). north, multicell 3). south, multicell 4). south, supercell Quiz 14 Q17

    4). south, supercell Note: flanking line is going to be to the south of a supercell.

80. A squall line commonly forms ______. 1). along the warm front 2). west of the cold front 3). along the dry line, east of the cold front, and/or along the cold front Quiz 14 Q18

    3). along the dry line, east of the cold front, and/or along the cold front

81. Just west of the strongest precipitation associated with a squall line, I would most likely find ______. 1). A warm front 2). Sinking motion and clear sky 3). Lighter precipitation in a trailing stratiform region 4). Another band of heavy precipitation 5). Ice-encrusted petrified Norwegian zombie chickens Quiz 14 Q19

    3). Lighter precipitation in a trailing stratiform region

82. Severe squall line weather is most commonly found along the ____ edges of a cold frontal cloud band. 1). Middle 2). Eastern and southern 3). Western and southern 4). Northern Quiz 14 Q20

    2). Eastern and southern

83. Mesoscale convective complexes (MCC) typically form in ____ beneath _______. 1). April-June, an upper level jet 2). June-August, an upper level jet 3). April-June, an upper level trough 4). July-September, an upper level ridge Quiz 14 Q21

    4). July-September, an upper level ridge

84. MCCs in the United States are most common: 1). over desert southwest in July/August 2). over Florida in winter 3). over the Great Plains in summer 4). over the Great Plains in winter 5). over California in summer Quiz 14 Q22

    3). over the Great Plains in summer

85. The most likely vertical wind profile associated with a MCC is _____. 1). southwesterlies that increase to near 100kt near the tropopause 2). strong southerlies near the surface, jet stream aloft 3). moderately southerly at the surface, lighter variable winds higher up 4). a profile similar to that for a supercell Quiz 14 Q23

    3). moderately southerly at the surface, lighter variable winds higher up Note to self: Multicell and MCC are not the same. I believe MCC is just a bunch of airmass TS collected together.

86. Due to MCCs long duration and potential to form over the same areas several evenings/nights in a row, ____ is a major hazard associated with these storm systems. 1). damaging winds 2). hail 3). flooding 4). tornadoes Quiz 14 Q24

    3). flooding

87. Weather is a factor in roughly ____% of all aviation accidents. A. 21 B. 10 C. 40 D. <10 Quiz 1 Q1

    A. 21

88. Weather is a factor in about ____% of aviation fatalities. A. 30 B. 60 C. 10 D. <10 Quiz 1 Q2

    A. 30

89. The main cause of weather-related aviation fatalities is ____. 1). continued flight into IMC 2). icing 3). wind and turbulence 4). thunderstorms Quiz 1 Q3

    1). continued flight into IMC

90. The leading cause of airport delays is ____. 1). traffic volume 2). closed runways 3). equipment failures 4). weather Quiz 1 Q4

    4). weather

91. The leading cause of airport weather-related delays is ____. 1). thunderstorms 2). gusty wind and turbulence 3). low ceilings 4). reduced visibility Quiz 1 Q5

    1). thunderstorms

92. Average sea level pressure is near ____. 1). All the Above 2). 29.92 in Hg 3). 1013 mb 4). 14 lb per square inch Quiz 1 Q6

    1). All the Above

93. Which of the following does NOT occur when a column of air is heated? 1). the average density decreases 2). the air molecules move faster on average 3). the number of molecules per volume decreases 4). pressure decreases with height at a faster rate Quiz 1 Q7

    4). pressure decreases with height at a faster rate

94. The height above sea level at which the pressure is 700 mb is typically near ____. 1). 10,000 ft 2). 30,000 ft 3). 25,000 ft 4). 5,000 ft Quiz 1 Q8

    1). 10,000 ft

95. The pressure at 30,000 ft is about ____ mb. Correct! 1). 300 2). 100 3). 400 4). 200 Quiz 1 Q9

    1). 300

96. Cooling air at constant pressure will ____. 1). decrease pressure 2). increase density 3). decrease density 4). increase pressure Quiz 1 Q10

    2). increase density

97. Heating a parcel of air at constant pressure will make the air ____ dense than the surrounding air. The parcel of air will then ____. 1). more, rise 2). less, sink 3). more, sink 4). less, rise Quiz 1 Q11

    4). less, rise

98. If I heat air in a closed container the pressure inside the container will ____. 1). increase 2). decrease 3). stay constant Quiz 1 Q12

    1). increase

99. In the ISA (Standard Atmosphere), the lapse rate in the troposphere is closest to ____. 1). -2ºC per 1,000 ft 2). 3ºC per 1,000 ft 3). 2ºC per 1,000 ft 4). -3ºC per 1,000 ft Quiz 1 Q13

    3). 2ºC per 1,000 ft

100. Pressure decreases with height faster in a ____ column. 1). cold 2). moist 3). dry 4). warm Quiz 1 Q14

     1). cold