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ERS Quiz 9 Review - Intro To Weather
Test Description: Intro to Weather - Weather variables - Station Model - Isotherms - Isobars - Pressure Gradient
Instructions: Answer all questions to get your test result.
1) Which variable is not found on a station model?
A
Wind Chill
B
Pressure Trend
C
Wind Direction
D
Temperature
2) Which variable on a station model DOESN'T indicate the likelihood of precipitation?
A
Pressure
B
Wind Speed
C
Dew Point
D
Cloud Cover
3) Atmospheric pressure can be measured in all the following units except:
A
millibars
B
inches
C
micrometers
D
atmospheres
4) All of the following are rules of iso-mapping EXCEPT:
A
Isolines should increase by a consistent interval.
B
Isolines should curve around the value that it represents.
C
Isolines should extend to the end of the map.
D
Isolines should never intersect.
5) The formula for pressure gradient is:
A
Pressure value / distance
B
Change in value / time
C
Change in value / distance
D
Pressure value / time
6) Dew point temperature is:
A
the temperature it is during precipitation
B
the amount of moisture in the air
C
the temperature it would have to be in order for it to precipitate
D
the temperature that is measured on a sling psychrometer
7) Relative humidity is:
A
the amount of water vapor in the air
B
the quantity of water molecules in the air
C
the amount of space in the air taken up by water vapor
D
the percentage of the air that's saturated with water vapor
8) Low pressure conditions are usually:
A
high temperature and low moisture
B
low temperature and high moisture
C
low temperature and low moisture
D
high temperature and high moisture
9) Pressure moves:
A
from an area of high concentration to an area of low concentration
B
from North to South
C
from an area with high temperatures to an area of low temperatures
D
from an area of low concentration to an area of high concentration
10) Wind direction is named by:
A
the area in which the wind is blowing towards
B
the area in which the wind is blowing from
C
the area that has the highest winds
D
the area in between the high and the low pressures
11) A coded pressure of 013 represents:
A
9001.3 mb
B
1001.3 mb
C
901.3 mb
D
1013.0 mb
12) When air temperature increases, the density of the air:
A
decreases
B
increases, then decreases
C
stays the same
D
increases
13) 996.4 mb is equal to how many inches of mercury?
A
29.42 inches
B
29.40 inches
C
29.50 inches
D
29.45 inches
14) What pressure conditions can be expected when the air temperature and dew point temperature are close together?
A
Low to high pressure conditions
B
Low pressure conditions
C
high to low pressure conditions
D
High pressure conditions
15) Which kind of air can hold the most amount of water vapor?
A
Cool air
B
Dense air
C
Warm air
D
Moist air
16) When the dew point temperature and air temperature are far apart in value, what is the likelihood of precipitation?
A
It's hard to tell
B
It's medium
C
It's high
D
It's low
17) Station models represent temperature using which units of measurement?
A
None of the above
B
Kelvin
C
Degrees Fahrenheit
D
Degrees Celsius
18) Which amount of cloud cover would indicate the greatest chance of precipitation?
A
50%
B
100%
C
75%
D
25%
19) What is the approximate relative humidity if the dry-bulb temperature is 20 degrees Celsius and the wet-bulb temperature is 12 degrees Celsius?
A
44%
B
36%
C
30%
D
33%
20) High pressure air is usually:
A
sinking due to low temperatures and low moisture
B
rising due to low temperatures and low moisture
C
sinking due to high temperatures and high moisture
D
rising due to high temperatures and high moisture
*select an answer for all questions
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