Tag: in search of the source of wind

Questions Related to in search of the source of wind

The speed and the direction of wind are based on which of the following? 

geography in search of the source of wind variations in atmospheric pressure properties of air pressure belts

  1. Pressure gradient force

  2. Coriolis force

  3. Friction

  4. All of the above

Show answer
Correct Option: D
Explanation:

Pressure gradient force,

winds balanced by the Coriolis and Pressure Gradient forces. An air parcel initially at rest will move from high pressure to low pressure because of the pressure gradient force (PGF). ... As the wind gains speed, the deflection increases until the Coriolis force equals the pressure gradient force.
Coriolis force,
The Coriolis effect influences wind by deflecting its path to the right in the Northern Hemisphere. The sequence of weather satellite images shows that the actual wind direction is from the southwest. The satellite images show atmospheric motion over the northern Pacific Ocean for a 36-hour period.
Friction,
 Winds affected by friction. Geostrophic wind blows parallel to the isobars because the Coriolis force and pressure gradient force are in balance. ... As we move higher, surface features affect the wind less until the wind is indeed geostrophic.

The atmospheric pressure decreases at the rate of ______________.

geography in search of the source of wind variations in atmospheric pressure properties of air pressure belts the concept of bernoulli's principle air exerts pressure

  1. 1 millibar/altitude of 10 meters

  2. 1 millibar/altitude of 15 meters

  3. 1 millibar/altitude of 18 meters

  4. 1 millibar/altitude of 20 meters

Show answer
Correct Option: A
Explanation:

Near Earth's surface the pressure decreases with height at a rate of about 1 millibars for every 10 metres. However, over cold air the decrease in pressure can be much steeper because its density is greater than warmer air.

When the temperature increases atmospheric pressure _________.

geography in search of the source of wind variations in atmospheric pressure properties of air pressure belts the concept of bernoulli's principle air exerts pressure

  1. increases

  2. decreases

  3. remains same

  4. became zero

Show answer
Correct Option: B
Explanation:

There exists a negative relation between pressure and temperature. When temperature increases pressure will fall and vice versa. That is why, pressure increases from equatorial region towards the polar region.

The Right to education(RTE act) was passed in __________.

geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

  1. 2007

  2. 2008

  3. 2009

  4. 2010

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Correct Option: C

Name the Planetary winds that meet the Inter Tropical Convergence Zone.

geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

  1. Westerlies and Easterlies

  2. North east trade winds, South east trade winds

  3. South east trade winds, Westerlies

  4. Trade winds, Easterlies

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Correct Option: A

Jet streams,located approximately over ${27}^{o}-{30}^{o}$ north latitude is known as _______.

geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

  1. polar jet stream

  2. subtropical jet stream

  3. north-westerly jet streams

  4. south-easterly jet streams

Show answer
Correct Option: B
Explanation:

Jet streams are some of the strongest winds in the atmosphere. There are two types of jet streams: Subtropical jet stream and polar jet stream. The streams that are centered at about 30$°$ latitude are subtropical jet stream.

Monsoon is derived from Arabic word _____.

geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

  1. Maussum

  2. Mausim

  3. Moussam

  4. Maussem

Show answer
Correct Option: B
Explanation:

The word “monsoon” is derived from the Arabic word mausim, which means season. Basically, it describes a seasonal wind shift over a region that is usually accompanied by a dramatic increase in precipitation. Monsoon is experienced by Asia, North America, etc. Monsoon is the main source of water. Monsoons are vital to agriculture and the economy.

The South-east Trade winds are attracted towards the Indian sub-continent in the month of June due to ________.

geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

  1. The effect of the westerlies

  2. The effect of Somaliya current

  3. The presence of low atmospheric pressure over North-west India

  4. None of the above

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Correct Option: A

Which one of the following winds is not a planetary wind?

geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

  1. Trade

  2. Westerly

  3. Polar Easterly

  4. Monsoon

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Correct Option: D

The wind blowing in the Northern Plains in summer is known as ________.

geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

  1. Kal baisakhi

  2. Loo

  3. Mango Shower

  4. Western disturbance

Show answer
Correct Option: B
Explanation:

Loo is strong, gusty, hot, dry wind blowing during the day over the north and northwestern India. It is especially strong in the months of May and June.