ATSC 110 Precipitation Test Questions
and Answers All Correct
What processes does supercooled water play a role in? - Answer- Aggregation
Hail
Accretion
Freezing Rain
What determines hail size? - Answer- Updraft
What determines whether precipitation is sleet or freezing rain? - Answer- Height of the
freezing level - a shallow freezing level indicated freezing rain and a deep/high level
indicates sleet
What does most rain begin as? - Answer- snow
What kind of precipitation can cumulonimbus clouds produce? - Answer- Snow
Rain
Freezing Rain
Hail
What affects snowflake shape? - Answer- Temperature and supersaturation
How are dendrites formed? - Answer- Greatest difference between supersaturation and
temperatures
How does rain form? - Answer- water vapor melts as it falls
How does sleet form? - Answer- water vapor melts as it falls before falling through a
deep freezing layer and refreezing
How does hail form? - Answer- Large updrafts that force water droplets to rise and grow
through accretion before falling
How does snow form? - Answer- frozen water vapor that does not heat enough to melt
How does freezing rain form? - Answer- supercooled water that freezes on contact w/ a
surface below freezing
What precipitation only occurs in cumulonimbus clouds? - Answer- Hail
What is aggregation? - Answer- merging of ice particles
and Answers All Correct
What processes does supercooled water play a role in? - Answer- Aggregation
Hail
Accretion
Freezing Rain
What determines hail size? - Answer- Updraft
What determines whether precipitation is sleet or freezing rain? - Answer- Height of the
freezing level - a shallow freezing level indicated freezing rain and a deep/high level
indicates sleet
What does most rain begin as? - Answer- snow
What kind of precipitation can cumulonimbus clouds produce? - Answer- Snow
Rain
Freezing Rain
Hail
What affects snowflake shape? - Answer- Temperature and supersaturation
How are dendrites formed? - Answer- Greatest difference between supersaturation and
temperatures
How does rain form? - Answer- water vapor melts as it falls
How does sleet form? - Answer- water vapor melts as it falls before falling through a
deep freezing layer and refreezing
How does hail form? - Answer- Large updrafts that force water droplets to rise and grow
through accretion before falling
How does snow form? - Answer- frozen water vapor that does not heat enough to melt
How does freezing rain form? - Answer- supercooled water that freezes on contact w/ a
surface below freezing
What precipitation only occurs in cumulonimbus clouds? - Answer- Hail
What is aggregation? - Answer- merging of ice particles
