Tag: winds

Questions Related to winds

Winds are heavy at equator.

  1. True

  2. False


Correct Option: B
Explanation:

The above statement is incorrect. Winds are light at the equator because of the weak horizontal pressure gradients located there.

The interior layer of the earth which is subjected to great heat and pressure is known technically as the barysphere. Which part of the earth does it refer to ___________.

  1. Upper Mantle

  2. Asthenosphere

  3. Hydrosphere

  4. The Core


Correct Option: D

Wind consist of _____________.

  1. Bulk movement of dust

  2. Bulk movement of air

  3. Bulk movement of water

  4. None of these


Correct Option: B
Explanation:

The correct option is (B).Wind consist of bulk movement of air.

What do isobars indicate?

  1. The atmospheric pressure in a particular area.

  2. Rainfall in different places.

  3. Wind strengths in several areas.

  4. Places with the same temperature.


Correct Option: A

What are the Doldrums?

  1. The Trade Winds

  2. Areas of great humidity

  3. A low-pressure belt round the Equator where there are very light winds and calm seas.

  4. Areas where the seas are calm.


Correct Option: C

What does HYV stand for?

  1. High Yielding Varieties

  2. High Yolk Variety

  3. Health Young Variety

  4. None of them


Correct Option: A
Explanation:

 HYV programme refers to the use of High Yielding Variety (HYV) seeds for increasing agricultural output.


HYVs is a generic name for a group of genetical cultivars of crops such as rice, maize and wheat that have an increased growth rate, an increased percentage of a usable plant part or an increased resistance against crop diseases.

Hence, the correct option is $\text{A}$

In 1805, Admiral Francis Beaufort devised a guide to assess the speed and force of wind. It is called the ___________.

  1. Richter Scale

  2. Kelvin Scale

  3. Beaufort Wind Scale

  4. All of these


Correct Option: C
Explanation:

A numerical scale for relating wind speed and sea state, devised by the British Admiral Sir Francis Beaufort in 1805. Beaufort numbers (or forcesrange from force 0 (calm) to force 12 (hurricane). Sometimes (and originallycalled the Beaufort scale of wind forces.

How many points are there on the Beaufort scale for measuring wind force?

  1. 6

  2. 8

  3. 9

  4. 12


Correct Option: D
Explanation:

A numerical scale for relating wind speed and sea state, devised by the British Admiral Sir Francis Beaufort in 1805. Beaufort numbers (or forcesrange from force 0 (calm) to force 12 (hurricane). Sometimes (and originallycalled the Beaufort scale of wind forces.

El-Nino is a ___________.

  1. Warm current

  2. Reversal of wind

  3. Broad trough of low pressure

  4. Wind of upper atmosphere


Correct Option: A
Explanation:

El-Nino is a warm ocean current that sometimes appears off the coast of Peru in South America during the month of December. It increases the surface temperature of the sea and affects the movement of monsoon winds in the Indian Ocean and causes a drought-like situation in the Indian sub-continent. 

"Ferrel law" is also known as  _______.

  1. Jet streams

  2. Wind force

  3. Coriolis force

  4. Cyclonic force


Correct Option: C
Explanation:
Coriolis Force: An apparent force caused by the earth’s rotation. The Coriolis force is responsible for deflecting winds towards the right in the northern hemisphere and towards the left in the southern hemisphere. This is also known as ‘Ferrel’s Law’.