CPAER Exam 2024/2025 Questions and Answers
Verified
How many feet is 300MB? - ANSWER 30,000ft
What cold fronts are commonly found in Canada during the summer months? - ANSWER
Maritime arctic, maritime polar
Expansion cooling, condensation, formation of cloud is result of which process? -
ANSWER Over running
What is a trough? - ANSWER elongated area of low pressure
Where does a polar jetstream form? - ANSWER Forms at the ridge where the
tropopause changes
Subsiding Air will ........ in relative humidity? - ANSWER Decrease in relative Humidity
Lenticular cloud is a special type of ? - ANSWER Altocumulus
What is mean MSL pressure? - ANSWER Station pressure reduced to MSL using the
temperature of the last 12 hours
What does 500 MB represent in FT? - ANSWER 18,000Ft
What is a stationary front? - ANSWER Where two air masses meet, but neither one
advances.
, What is 400MB represent in FT ? - ANSWER 24,000
Relative humidify formula ? - ANSWER R=100-5 x (T-TD)
Characteristics of a cold front
Wind:
Temp:
Press: - ANSWER Wind: veer
Temp: decrease
Press: increase
Where is a TROWEL likely to form ahead of? - ANSWER Cold front
How long does the mature stage of a thunderstorm last for? - ANSWER 15 to 30 minutes
Ratio between actual amount of water vapour held in a parcel at a given temperature
and pressure compared to what it could possibly hold - ANSWER Relative humidity
Advection fog is caused by what? - ANSWER Warm air moving over a cold surface
AWAS reports and Max visibility of what? - ANSWER 9 SM
What is required for all fog to form? - ANSWER High Relative humidity
Verified
How many feet is 300MB? - ANSWER 30,000ft
What cold fronts are commonly found in Canada during the summer months? - ANSWER
Maritime arctic, maritime polar
Expansion cooling, condensation, formation of cloud is result of which process? -
ANSWER Over running
What is a trough? - ANSWER elongated area of low pressure
Where does a polar jetstream form? - ANSWER Forms at the ridge where the
tropopause changes
Subsiding Air will ........ in relative humidity? - ANSWER Decrease in relative Humidity
Lenticular cloud is a special type of ? - ANSWER Altocumulus
What is mean MSL pressure? - ANSWER Station pressure reduced to MSL using the
temperature of the last 12 hours
What does 500 MB represent in FT? - ANSWER 18,000Ft
What is a stationary front? - ANSWER Where two air masses meet, but neither one
advances.
, What is 400MB represent in FT ? - ANSWER 24,000
Relative humidify formula ? - ANSWER R=100-5 x (T-TD)
Characteristics of a cold front
Wind:
Temp:
Press: - ANSWER Wind: veer
Temp: decrease
Press: increase
Where is a TROWEL likely to form ahead of? - ANSWER Cold front
How long does the mature stage of a thunderstorm last for? - ANSWER 15 to 30 minutes
Ratio between actual amount of water vapour held in a parcel at a given temperature
and pressure compared to what it could possibly hold - ANSWER Relative humidity
Advection fog is caused by what? - ANSWER Warm air moving over a cold surface
AWAS reports and Max visibility of what? - ANSWER 9 SM
What is required for all fog to form? - ANSWER High Relative humidity
