FREE EARTH SCIENCE AND STUDY GAMES ABOUT

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FREE EARTH SCIENCE AND STUDY GAMES ABOUT

CHAPTER 6 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -50 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: A relatively warm surface tends to ______ the overlying air.

Answer:

destabilize Question 2: Suppose that the vapor pressure of the cold outside air is the same as the vapor pressure of the warm air indoors. If the door is opened and the cold air replaces some of the warm air, then the new relative humidity indoors would be

Answer:

higher than before.Question 3: Cumulus clouds are ______ likely to build into thunderstorm clouds when the air temperature profile (sounding) indicates unstable conditions.

Answer:

most Question 4: In an agricultural field, direct evaporation of water from the soil is usually ______ transpiration of water by plants.

Answer:

less than

Question 5: If the air temperature is 12 °C and the vapor pressure is the same as the saturation vapor pressure, the relative humidity is

Answer:

100%

Question 6: In an isothermal temperature profile, the air temperature

Answer:

does not change with altitude.Question 7: A lapse rate of ______ Celsius degrees per 1000 meters is stable for unsaturated air parcels.

Answer:

All of these are correct.

Question 8: As an unsaturated parcel of air ascends dry adiabatically,

Answer:

None of the above is correct.

Question 9: As an aircraft ascends within the troposphere, the external

Answer:

None of the above is correct.

Question 10: A snow cover tends to ______ the overlying air.

Answer:

stabilize

Question 11: Conditional stability indicates that an air layer is

Answer:

unstable for cloudy and stable for clear air parcels.

Question 12: Air mass advection ______ change the relative humidity.

Answer:

can

Question 13: As a clear parcel of air ascends dry adiabatically,

Answer:

All of the above are correct.Question 14: As unsaturated (clear) air flows down the leeward slopes of a mountain range,

Answer:

All of the above are correct.

Question 15: Stable air ______ vertical motion of air parcels.

Answer:

suppresses Question 16: If the mixing ratio of a parcel of air is 6 grams per kilogram and the relative humidity is 25 percent, the saturation mixing ratio is ______ grams per kilogram.

Answer:

none of these is correct

Question 17: Conditional stability indicates that an air layer is

Answer:

unstable for saturated and stable for unsaturated air parcels.Question 18: A temperature inversion is characterized by a(n) ______ of air temperature with altitude.

Answer:

increase Question 19: If the air temperature drops with altitude such that the actual lapse rate (sounding) is 7 Fahrenheit degrees per 1000 feet, the air layer is ______ for saturated (cloudy) air parcels and ______ for unsaturated (clear) air parcels.

Answer:

unstable...unstable Question 20: In winter, the precipitable water value is likely to be highest in ________.

Answer:

Miami, FL

Question 21: The saturation vapor pressure ______ with rising air temperature.

Answer:

increases

Question 22: Unstable air ______ vertical motion of air parcels.

Answer:

enhances Question 23: If a saturated (cloudy) air parcel is heated (say by absorption of radiation), its relative humidity ______.

Answer:

decreases Question 24: As the temperature of a saturated (cloudy) air parcel falls, its relative humidity

______.

Answer:

does not change Question 25: As saturated (cloudy) air flows up the windward slopes of a mountain range,

Answer:

the saturation mixing ratio decreases.Question 26: If the temperature of an unsaturated (clear) air parcel does not change while its mixing ratio increases, the density of the parcel ______.

Answer:

decreases Question 27: If the mixing ratio of a parcel of air is 2 grams per kilogram and its saturation mixing ratio is 6 grams per kilogram, the relative humidity is ______ percent.

Answer:

33.3 Question 28: Rising parcels of saturated (cloudy) air do not cool as rapidly as rising parcels of unsaturated (clear) air because

Answer:

expansional cooling of saturated air is partially compensated for by release of latent heat.