Question 1

When the temperature is below freezing from the surface to the 500 hPa pressure level, which precipitation type would be expected?

Accepted Answer

A) snow 
B) rain 
C) ice pellets 
D) freezing rain 
A) snow 
B) rain 
C) ice pellets 
D) freezing rain

Question 2

Explain why snowflakes differ in appearance depending on the moisture content in the air.

Accepted Answer

Snowflakes differ in appearance dependin

Question 3

Explain why the curvature effect acts to inhibit the growth of small droplets.

Accepted Answer

The curvature effect acts to inhibit the

Question 4

Why might a radar display indicate that precipitation is falling when in fact none is reaching the surface?

Accepted Answer

A radar display might indicate that prec

Question 5

Comparing supercooled water and ice, the difference in their saturation vapour pressure reaches a maximum at about - C. Consequently, the ice crystal process will most effectively produce precipitation at which of the following cloud temperatures?

Accepted Answer

A) much colder than - C 
B) around - C 
C) much warmer than - C 
D) around  C 
A) much colder than - C 
B) around - C 
C) much warmer than - C 
D) around  C

Question 6

Which of the following describes when homogeneous freezing occurs?

Accepted Answer

A) when water vapour condenses onto hydrophobic nuclei 
B) when water vapour condenses without nuclei 
C) when water vapour condenses onto hygroscopic nuclei 
D) when all the condensation nuclei are exactly the same 
A) when water vapour condenses onto hydrophobic nuclei 
B) when water vapour condenses without nuclei 
C) when water vapour condenses onto hygroscopic nuclei 
D) when all the condensation nuclei are exactly the same

Question 7

Consider a city that receives 12.7 mm of rain in the morning and then 12.7 cm of snow that afternoon. About how much precipitation would Environment Canada report for that day?

Accepted Answer

A) 1.27 cm 
B) 2.54 cm 
C) 13.97 cm 
D) 25.40 cm 
A) 1.27 cm 
B) 2.54 cm 
C) 13.97 cm 
D) 25.40 cm

Question 8

Explain why it is possible for an ice crystal to grow in a cold cloud even though the supercooled water droplets surrounding the ice crystal do not.

Accepted Answer

Ice crystals can grow in a cold cloud ev

Question 9

In which of the following conditions does cloud seeding work using silver iodide only?

Accepted Answer

A) cumuliform clouds 
B) warm clouds composed entirely of water droplets 
C) cold clouds composed entirely of ice crystals 
D) cold clouds composed of ice crystals and supercooled droplets 
A) cumuliform clouds 
B) warm clouds composed entirely of water droplets 
C) cold clouds composed entirely of ice crystals 
D) cold clouds composed of ice crystals and supercooled droplets

Question 10

Which of the following gives the name for hail that is deposited in a long, narrow band?

Accepted Answer

A) squall line 
B) hail line 
C) ice line 
D) hailstreak 
A) squall line 
B) hail line 
C) ice line 
D) hailstreak

Question 11

Which of the following is the name for a raindrop or partially melted snowflake that freezes into an ice pellet in a deep subfreezing layer of air near the surface?

Accepted Answer

A) ice pellet 
B) freezing rain 
C) hail 
D) snow 
A) ice pellet 
B) freezing rain 
C) hail 
D) snow

Question 12

Which of the following changes happen as a result of freshly fallen snow?

Accepted Answer

A) Sound waves are amplified. 
B) Sound waves are absorbed. 
C) The intensity of visible light is decreased. 
D) The intensity of visible light is enhanced. 
A) Sound waves are amplified. 
B) Sound waves are absorbed. 
C) The intensity of visible light is decreased. 
D) The intensity of visible light is enhanced.

Question 13

After a snowstorm, the newspaper reports that a city received 38.1 mm of precipitation. Assuming an average water equivalent ratio for this snowstorm, about how many centimetres of snow did the city receive?

Accepted Answer

A) 3.81 cm 
B) 7.62 cm 
C) 22.86 
D) 39.1 cm 
A) 3.81 cm 
B) 7.62 cm 
C) 22.86 
D) 39.1 cm

Question 14

Which of the following conditions are probably occurring when large raindrops hit the ground?

Accepted Answer

A) thick cloud overhead and weak updrafts 
B) thick cloud overhead and strong updrafts 
C) thin cloud overhead and weak updrafts 
D) thin cloud overhead and strong updrafts 
A) thick cloud overhead and weak updrafts 
B) thick cloud overhead and strong updrafts 
C) thin cloud overhead and weak updrafts 
D) thin cloud overhead and strong updrafts

Question 15

Which of the following statements describes the size of a typical raindrop compared to a typical cloud droplet?

Accepted Answer

A) A typical raindrop is 1000 times larger. 
B) A typical raindrop is 100 times larger. 
C) A typical raindrop is 100 times smaller. 
D) A typical raindrop is 1000 times smaller. 
A) A typical raindrop is 1000 times larger. 
B) A typical raindrop is 100 times larger. 
C) A typical raindrop is 100 times smaller. 
D) A typical raindrop is 1000 times smaller.

Question 16

Which of the following describes the most common snow condition that produces a creaking sound when someone is walking on snow?

Accepted Answer

A) old snow when the air temperature is above -10°C 
B) old snow when the air temperature is near freezing 
C) new snow when the air temperature is below -10°C 
D) new snow when the air temperature is near freezing 
A) old snow when the air temperature is above -10°C 
B) old snow when the air temperature is near freezing 
C) new snow when the air temperature is below -10°C 
D) new snow when the air temperature is near freezing

Question 17

Which of the following conditions are most suitable for natural cloud seeding by ice crystals?

Accepted Answer

A) stratus clouds above ground fog 
B) altocumulus clouds above stratus clouds 
C) cirrus clouds above stratus clouds 
D) cirrus clouds above altostratus clouds 
A) stratus clouds above ground fog 
B) altocumulus clouds above stratus clouds 
C) cirrus clouds above stratus clouds 
D) cirrus clouds above altostratus clouds

Question 18

Which of the following is the most likely type of cloud that causes rain to fall on one side of a street and not on the other?

Accepted Answer

A) stratus cloud 
B) altostratus cloud 
C) nimbostratus cloud 
D) cumulonimbus cloud 
A) stratus cloud 
B) altostratus cloud 
C) nimbostratus cloud 
D) cumulonimbus cloud

Question 19

Design an automated device for measuring snowfall. How might it work?

Accepted Answer

An automated device for measuring snowfa

Question 20

Glaze is another name for which of the following?

Accepted Answer

A) freezing rain 
B) rime ice 
C) ice pellet 
D) snow 
A) freezing rain 
B) rime ice 
C) ice pellet 
D) snow

When the temperature is below freezing from the surface to the 500 hPa pressure level, which precipitation type would be expected?

Explain why snowflakes differ in appearance depending on the moisture content in the air.

Explain why the curvature effect acts to inhibit the growth of small droplets.

Why might a radar display indicate that precipitation is falling when in fact none is reaching the surface?

Comparing supercooled water and ice, the difference in their saturation vapour pressure reaches a maximum at about -12C. Consequently, the ice crystal process will most effectively produce precipitation at which of the following cloud temperatures?

Which of the following describes when homogeneous freezing occurs?

Consider a city that receives 12.7 mm of rain in the morning and then 12.7 cm of snow that afternoon. About how much precipitation would Environment Canada report for that day?

Explain why it is possible for an ice crystal to grow in a cold cloud even though the supercooled water droplets surrounding the ice crystal do not.

In which of the following conditions does cloud seeding work using silver iodide only?

Which of the following gives the name for hail that is deposited in a long, narrow band?

Which of the following is the name for a raindrop or partially melted snowflake that freezes into an ice pellet in a deep subfreezing layer of air near the surface?

Which of the following changes happen as a result of freshly fallen snow?

After a snowstorm, the newspaper reports that a city received 38.1 mm of precipitation. Assuming an average water equivalent ratio for this snowstorm, about how many centimetres of snow did the city receive?

Which of the following conditions are probably occurring when large raindrops hit the ground?

Which of the following statements describes the size of a typical raindrop compared to a typical cloud droplet?

Which of the following describes the most common snow condition that produces a creaking sound when someone is walking on snow?

Which of the following conditions are most suitable for natural cloud seeding by ice crystals?

Which of the following is the most likely type of cloud that causes rain to fall on one side of a street and not on the other?

Design an automated device for measuring snowfall. How might it work?

Glaze is another name for which of the following?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters

Exam 7: Precipitation

When the temperature is below freezing from the surface to the 500 hPa pressure level, which precipitation type would be expected?

Explain why snowflakes differ in appearance depending on the moisture content in the air.

Explain why the curvature effect acts to inhibit the growth of small droplets.

Why might a radar display indicate that precipitation is falling when in fact none is reaching the surface?

Comparing supercooled water and ice, the difference in their saturation vapour pressure reaches a maximum at about -12C. Consequently, the ice crystal process will most effectively produce precipitation at which of the following cloud temperatures?

Which of the following describes when homogeneous freezing occurs?

Consider a city that receives 12.7 mm of rain in the morning and then 12.7 cm of snow that afternoon. About how much precipitation would Environment Canada report for that day?

Explain why it is possible for an ice crystal to grow in a cold cloud even though the supercooled water droplets surrounding the ice crystal do not.

In which of the following conditions does cloud seeding work using silver iodide only?

Which of the following gives the name for hail that is deposited in a long, narrow band?

Which of the following is the name for a raindrop or partially melted snowflake that freezes into an ice pellet in a deep subfreezing layer of air near the surface?

Which of the following changes happen as a result of freshly fallen snow?

After a snowstorm, the newspaper reports that a city received 38.1 mm of precipitation. Assuming an average water equivalent ratio for this snowstorm, about how many centimetres of snow did the city receive?

Which of the following conditions are probably occurring when large raindrops hit the ground?

Which of the following statements describes the size of a typical raindrop compared to a typical cloud droplet?

Which of the following describes the most common snow condition that produces a creaking sound when someone is walking on snow?

Which of the following conditions are most suitable for natural cloud seeding by ice crystals?

Which of the following is the most likely type of cloud that causes rain to fall on one side of a street and not on the other?

Design an automated device for measuring snowfall. How might it work?

Glaze is another name for which of the following?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters