Tag: winds

Questions Related to winds

What is the name of cold local winds that blow from the Alps?

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. Chinook

  2. Loo

  3. Mistral

  4. Puna

Show answer
Correct Option: C
Explanation:

Mistral

The mistral is a strong, cold, northwesterly wind that blows from southern France into the Gulf of Lion in the northern Mediterranean. It produces sustained winds often exceeding 66 km/h (41 mph), sometimes reaching 185 km/h (115 mph). It is most common in the winter and spring, and strongest in the transition between the two seasons. Periods of the wind exceeding 30 km/h (19 mph) for more than sixty-five hours have been reported.

Loo is an example of _____.

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. Hot and dry winds in Northern plains of India

  2. Cold local winds

  3. Trade winds

  4. None of these

Show answer
Correct Option: A
Explanation:
  • The Loo is a strong, hot and dry summer wind that blows over the western Indo-Gangetic Plain region of North India and Pakistan.
  • It is especially strong in the months of May and June.
  • This creates a vast low pressure area over North Indian plains during afternoon.

Which among the following is a cold local wind in the Andes region?

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. Pampero

  2. Puna

  3. Chinook

  4. Loo

Show answer
Correct Option: A
Explanation:

Pampero 
The pampero is a burst of cold polar air from the west, southwest or south on the pampas in the south of Brazil, Argentina, Uruguay, Paraguay, and Bolivia. This wind (often violently) picks up during the passage of a cold front of an active low passing by. It takes the form of a squall line and there is a marked drop in temperature after its passing. The Pampero is most common in winter in the southern hemisphere (principally between May and August). During the summers in the region around Buenos Aires, the pampero storms are a welcome feature marking the end of long periods of high humidity and extreme heat.

Which cold local wind blows in Pampas region of South America?

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. Mistral

  2. Chinook

  3. Pampero

  4. Loo

Show answer
Correct Option: C
Explanation:
Pampero
The name given to severe line squalls in Argentina and Uruguay, particularly in the Rio de la Plata area. They are associated with marked cold fronts and are usually accompanied by rain, thunder, and lightning, a sharp drop in temperature and a sudden change of wind direction from northerly or northwesterly to southerly or south-westerly. They are most likely to occur during the period of June to September.

The local winds blow due to local variation in the temperature and pressure and influence a _____.

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. Large area

  2. Medium area

  3. Small area

  4. Very small area

Show answer
Correct Option: D
Explanation:

Very small area,

The local winds moderates the climate of nearby areas with sudden increase or decrease in the temperature and humidity. In valleys of the mountains, two kinds of winds are particularly active - anabatic winds and katabatic winds.  These winds are result of differential heating of the land and the sea.

The instrument used to measure wind direction is called _____________.

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. anemometer

  2. wind vane

  3. thermometer

  4. hygrometer

Show answer
Correct Option: B
Explanation:

The instrument which used to measure wind direction is called wind vane. It is generally located at the highest point of a building. This is pointed at the direction in which the wind is blowing. Wind vane is used to predict the weather of a particular place, as the direction of wind plays important role in determining weather of a place.

Wind vane is also known as _____________.

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. anemometer

  2. hygrometer

  3. recorder

  4. weather cock

Show answer
Correct Option: D
Explanation:

A wind vane is an instrument that shows the direction of the wind. It is generally located at the highest point of a building. It is also known as a weather clock, as it is used to predict the weather of a particular place. The direction in which the wind is blowing plays a significant role in predicting the weather of that particular place.

Which of the following are ways to express wind speed?

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. Knots

  2. Kilometers per hour

  3. Meters per second

  4. All of the above

Show answer
Correct Option: D
Explanation:

The knot is a unit of speed equal to one nautical mile per hour, exactly 1.8 km/h (approximately 1.15 mph)

Name the instrument used to measure the speed of wind.

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. Anemometer

  2. Wind vane

  3. Hygrometer

  4. Thermometer

Show answer
Correct Option: A
Explanation:

The term anemometer is derived from a Greek word 'anemos' which means wind. Anemometer is used to measure the speed of the wind. This instrument is used in all weather station. Tha standard height of the anemometer is 10meter in rural areas.

Wind forms as a result of difference in _______.

geography winds pressure belts elements of weather and climate :rainfall and air pressure monsoon phenomena and its mechanism

  1. humidity

  2. pressure

  3. temperature

  4. altitude

Show answer
Correct Option: B
Explanation:

Wind is been defined as air in horizontal motion caused by difference in pressure. There are two type of movement in the atmosphere : horizontal movement and vertical movement. Vertically moving air columns are known as currents. Winds are the means by which uneven distribution of pressure over the globe is balanced out .