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Weather and Climate: Chapter 7

Instructions: For each question, click on the radio button beside your answer. When you have completed the entire quiz, click the “Submit my answers” button at the bottom of the page to receive your results.

Question 1:


a) The vapour pressure when evaporation equals condensation
b) The pressure contributed by a single gas in a mixture of gases
c) The partial pressure exerted by water vapour
d) The maximum amount of water vapour that can exist at a given temperature

Question 2:


a) It is the maximum vapour pressure that can exist at a given temperature.
b) It depends on atmospheric pressure.
c) It increases with increasing temperature.
d) It is the vapour pressure when evaporation equals condensation.

Question 3:


a) Dew-point temperature
b) Relative humidity
c) Dew-point depression
d) Vapour pressure deficit

Question 4:


a) Vapour pressure
b) Absolute humidity
c) Mixing ratio
d) Dew-point temperature

Question 5:


a) The ratio of the mass of water vapour to the mass of dry air.
b) The mass of water vapour in a unit volume of air
c) The ratio of the amount of water vapour in the air to the saturation value at the air’s temperature
d) The ratio of the mass of water vapour to the total mass of air

Question 6:


a) Air temperature is higher than dew-point temperature.
b) Dew-point temperature is higher than air temperature.
c) Air temperature and dew-point temperature are the same.
d) There is no relationship between relative humidity and temperature.

Question 7:


a) Overnight
b) Early afternoon
c) Late afternoon
d) Evening

Question 8:


a) A decrease in vapour pressure
b) A decrease in saturation vapour pressure
c) A decrease in temperature
d) An increase in dew-point temperature

Question 9:


a) How hair lengthens in humid conditions
b) The relationship between changes in electrical resistance and relative humidity
c) A measurement of the dew-point temperature
d) The cooling produced by evaporation

Question 10:


a) Heat index
b) Wind chill
c) Dry-bulb temperature
d) Dew-point temperature

Question 11:


a) True
b) False

Question 12:


a) True
b) False

Question 13:


a) True
b) False

Question 14:


a) True
b) False

Question 15:


a) True
b) False