Q. A weather station reports a wind speed of 15 m/s. What is this speed in km/h? (2019)
A.
54 km/h
B.
36 km/h
C.
72 km/h
D.
45 km/h
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Solution
Wind speed in km/h = 15 m/s * 3.6 = 54 km/h.
Correct Answer:
A
— 54 km/h
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Q. If a region receives 1200 mm of rainfall in a year, what is the average monthly rainfall? (2022)
A.
100 mm
B.
120 mm
C.
150 mm
D.
200 mm
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Solution
Average monthly rainfall = Total annual rainfall / 12 = 1200 mm / 12 = 100 mm.
Correct Answer:
B
— 120 mm
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Q. If the atmospheric pressure at sea level is 1013 hPa, what is the pressure at 5000 meters altitude approximately?
A.
500 hPa
B.
700 hPa
C.
800 hPa
D.
900 hPa
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Solution
The atmospheric pressure at 5000 meters is approximately 700 hPa.
Correct Answer:
B
— 700 hPa
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Q. If the atmospheric pressure is 1013 hPa, what is it in mmHg?
A.
760 mmHg
B.
800 mmHg
C.
850 mmHg
D.
900 mmHg
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Solution
The atmospheric pressure of 1013 hPa is equivalent to 760 mmHg.
Correct Answer:
A
— 760 mmHg
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Q. If the relative humidity is 100%, what does it indicate about the air?
A.
Air is saturated
B.
Air is dry
C.
Air is cold
D.
Air is warm
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Solution
A relative humidity of 100% indicates that the air is saturated with moisture.
Correct Answer:
A
— Air is saturated
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Q. If the relative humidity is 80% and the temperature is 25°C, what is the dew point temperature approximately? (2023)
A.
20°C
B.
22°C
C.
18°C
D.
15°C
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Solution
Using a dew point calculator or approximation, the dew point at 80% relative humidity and 25°C is approximately 22°C.
Correct Answer:
B
— 22°C
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Q. If the relative humidity is 80% and the temperature is 30°C, what is the dew point approximately?
A.
25°C
B.
20°C
C.
15°C
D.
10°C
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Solution
Using the formula for dew point, the approximate dew point at 80% humidity and 30°C is around 20°C.
Correct Answer:
B
— 20°C
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Q. If the relative humidity is 80% at a temperature of 25°C, what is the dew point temperature approximately?
A.
20°C
B.
22°C
C.
18°C
D.
15°C
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Solution
At 25°C and 80% relative humidity, the dew point is approximately 22°C.
Correct Answer:
B
— 22°C
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Q. If the relative humidity of the air is 60% at 25°C, what is the dew point temperature? (2020)
A.
15°C
B.
20°C
C.
10°C
D.
25°C
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Solution
Using the formula for dew point approximation, Dew Point ≈ T - ((100 - RH) / 5) = 25 - ((100 - 60) / 5) = 25 - 8 = 20°C.
Correct Answer:
B
— 20°C
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Q. If the sun's angle of elevation is 30°, what is the height of a building that casts a shadow of 10 m? (2022)
A.
5 m
B.
10 m
C.
15 m
D.
20 m
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Solution
Height = Shadow length * tan(angle) = 10 m * tan(30°) = 10 m * (1/√3) ≈ 5 m.
Correct Answer:
A
— 5 m
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Q. If the temperature at sea level is 30°C, what is the approximate temperature at an altitude of 1000 meters, assuming a lapse rate of 6.5°C per kilometer? (2020)
A.
30°C
B.
24.5°C
C.
27°C
D.
22°C
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Solution
Using the lapse rate of 6.5°C/km, the temperature drop at 1000 meters is 6.5°C. Therefore, 30°C - 6.5°C = 23.5°C, which rounds to 24.5°C.
Correct Answer:
B
— 24.5°C
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Q. If the temperature at sea level is 30°C, what is the approximate temperature at an altitude of 3000 meters, assuming a lapse rate of 6.5°C per kilometer?
A.
15.5°C
B.
20°C
C.
10°C
D.
25°C
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Solution
Using the lapse rate of 6.5°C/km, the temperature drop at 3000 meters is 6.5 * 3 = 19.5°C. Therefore, the temperature at 3000 meters is 30°C - 19.5°C = 10.5°C, which rounds to approximately 15.5°C.
Correct Answer:
A
— 15.5°C
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Q. If the temperature at sea level is 30°C, what would be the approximate temperature at an altitude of 3000 meters, assuming a lapse rate of 6.5°C per kilometer? (2022)
A.
15.5°C
B.
18.5°C
C.
21.5°C
D.
24.5°C
Show solution
Solution
Using the lapse rate of 6.5°C/km, the temperature drop at 3000 meters is 6.5 * 3 = 19.5°C. Therefore, the temperature at 3000 meters is 30°C - 19.5°C = 10.5°C.
Correct Answer:
B
— 18.5°C
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Q. If the temperature increases by 10°C, how much will the volume of a gas increase if the pressure remains constant? (2021)
A.
10%
B.
20%
C.
30%
D.
15%
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Solution
According to Charles's Law, volume is directly proportional to temperature at constant pressure. A 10°C increase will result in a 10% increase in volume.
Correct Answer:
A
— 10%
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Q. If the temperature increases by 1°C, how much does the saturation vapor pressure increase approximately?
A.
6.5 hPa
B.
7.5 hPa
C.
8.5 hPa
D.
9.5 hPa
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Solution
The saturation vapor pressure increases by approximately 6.5 hPa for every 1°C increase in temperature.
Correct Answer:
A
— 6.5 hPa
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Q. If the wind is blowing from the north at 10 km/h, what is the wind direction?
A.
North
B.
South
C.
East
D.
West
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Solution
The wind direction is named from where it originates, so it is blowing from the North.
Correct Answer:
A
— North
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Q. In meteorology, what does the term 'anemometer' refer to?
A.
A device to measure temperature
B.
A device to measure humidity
C.
A device to measure wind speed
D.
A device to measure atmospheric pressure
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Solution
An anemometer is a device used to measure wind speed.
Correct Answer:
C
— A device to measure wind speed
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Q. In meteorology, what does the term 'isobar' refer to?
A.
Line of equal temperature
B.
Line of equal pressure
C.
Line of equal humidity
D.
Line of equal wind speed
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Solution
An 'isobar' is a line on a weather map that connects points of equal atmospheric pressure.
Correct Answer:
B
— Line of equal pressure
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Q. What is the average atmospheric pressure at sea level in hPa?
A.
1013.25 hPa
B.
1000 hPa
C.
1020 hPa
D.
980 hPa
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Solution
The average atmospheric pressure at sea level is approximately 1013.25 hPa.
Correct Answer:
A
— 1013.25 hPa
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Q. What is the average atmospheric pressure at sea level in millibars? (2021)
A.
1013.25 mb
B.
1000 mb
C.
1020 mb
D.
980 mb
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Solution
The average atmospheric pressure at sea level is defined as 1013.25 millibars.
Correct Answer:
A
— 1013.25 mb
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Q. What is the average temperature of a location if the maximum temperature recorded is 30°C and the minimum is 20°C? (2021)
A.
25°C
B.
20°C
C.
30°C
D.
15°C
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Solution
Average temperature = (Maximum + Minimum) / 2 = (30 + 20) / 2 = 25°C.
Correct Answer:
A
— 25°C
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Q. What is the average temperature of the Earth in degrees Celsius?
A.
15°C
B.
20°C
C.
25°C
D.
30°C
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Solution
The average temperature of the Earth is approximately 15°C.
Correct Answer:
A
— 15°C
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Q. What is the effect of deforestation on local climate?
A.
Increased rainfall
B.
Decreased temperature
C.
Increased temperature
D.
No effect
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Solution
Deforestation typically leads to increased temperatures in the local climate due to reduced transpiration and increased solar radiation absorption.
Correct Answer:
C
— Increased temperature
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Q. What is the main factor that determines the climate of a region?
A.
Altitude
B.
Latitude
C.
Longitude
D.
Proximity to water bodies
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Solution
Latitude is the main factor that determines the climate of a region.
Correct Answer:
B
— Latitude
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Q. What is the main factor that drives ocean currents?
A.
Wind
B.
Salinity
C.
Temperature
D.
Gravity
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Solution
Wind is the primary factor that drives ocean currents, influencing their direction and speed.
Correct Answer:
A
— Wind
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Q. What is the main factor that influences climate in a region?
A.
Altitude
B.
Latitude
C.
Longitude
D.
Population
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Solution
Latitude is the main factor that influences climate in a region.
Correct Answer:
B
— Latitude
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Q. What is the main factor that influences ocean currents?
A.
Wind
B.
Salinity
C.
Temperature
D.
All of the above
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Solution
All of the above factors influence ocean currents.
Correct Answer:
D
— All of the above
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Q. What is the main factor that influences the climate of a region?
A.
Altitude
B.
Latitude
C.
Longitude
D.
Population density
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Solution
Latitude is the main factor that influences the climate of a region.
Correct Answer:
B
— Latitude
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Q. What is the primary cause of wind?
A.
Earth's rotation
B.
Temperature differences
C.
Humidity differences
D.
Pressure differences
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Solution
Wind is primarily caused by differences in atmospheric pressure.
Correct Answer:
D
— Pressure differences
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Q. What is the primary gas responsible for the greenhouse effect? (2023)
A.
Oxygen
B.
Nitrogen
C.
Carbon Dioxide
D.
Hydrogen
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Solution
Carbon Dioxide is the primary gas responsible for the greenhouse effect.
Correct Answer:
C
— Carbon Dioxide
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