Air Pressure and Winds - Practice Test 4

Attempt the quiz above first, then review every question with its correct answer and a short explanation below.

1. Q1.Anemometer measures:

   • A.Wind Speed✓ Correct Answer
   • B.Direction
   • C.Pressure
   • D.Temperature

   Explanation: Repeated concept: Speed.

2. Q2.Isobars are lines connecting places of equal:

   • A.Pressure✓ Correct Answer
   • B.Temperature
   • C.Rainfall
   • D.Depth

   Explanation: Iso-Bar = Equal Pressure.

3. Q3.In the Southern Hemisphere, currents/winds deflect to the left due to:

   • A.Coriolis Force✓ Correct Answer
   • B.Gravity
   • C.Tides
   • D.Friction

   Explanation: Coriolis force causes leftward deflection in the South.

4. Q4.The Ferrel Cell is associated with which winds?

   • A.Westerlies✓ Correct Answer
   • B.Trade Winds
   • C.Polar Easterlies
   • D.Monsoons

   Explanation: Ferrel cell circulates between 30° and 60° (Westerlies).

5. Q5.The Hadley Cell is associated with which winds?

   • A.Trade Winds✓ Correct Answer
   • B.Westerlies
   • C.Polar Winds
   • D.Local Winds

   Explanation: Hadley cell is between 0° and 30° (Trade Winds).

6. Q6.Jet Streams are high altitude winds found in:

   • A.Tropopause✓ Correct Answer
   • B.Mesosphere
   • C.Ionosphere
   • D.Surface

   Explanation: Fast flowing air currents near the Tropopause.

7. Q7.Atmospheric pressure decreases with altitude because:

   • A.Air density decreases✓ Correct Answer
   • B.Temperature decreases
   • C.Gravity increases
   • D.Wind increases

   Explanation: Air becomes thinner (less dense) at higher altitudes.

8. Q8.Which wind causes the 'Norwester' rainfall in Bengal?

   • A.Local thunderstorms (Kalbaisakhi)✓ Correct Answer
   • B.Trade Winds
   • C.Westerlies
   • D.Loo

   Explanation: Kalbaisakhi are violent storms in the hot weather season.

9. Q9.What is 'El Nino'?

   • A.Warm ocean current along Peru coast✓ Correct Answer
   • B.Cold current
   • C.Hurricane
   • D.Wind name

   Explanation: El Nino is the warming of sea surface temps in the Pacific.

10. Q10.What is 'La Nina'?

    • A.Cooling of Pacific waters✓ Correct Answer
    • B.Warming of Pacific
    • C.Cyclone
    • D.Tornado

    Explanation: La Nina is the cooling phase (opposite of El Nino).

11. Q11.Which wind is associated with the 'Burst of Monsoon'?

    • A.South-West Monsoon✓ Correct Answer
    • B.North-East Monsoon
    • C.Westerlies
    • D.Trade Winds

    Explanation: SW Monsoon brings sudden heavy rains to India.

12. Q12.Winter rain in North-West India is caused by:

    • A.Western Disturbances✓ Correct Answer
    • B.SW Monsoon
    • C.Trade Winds
    • D.Cyclones

    Explanation: Cyclonic storms from the Mediterranean (Westerlies).

13. Q13.Which is the most destructive wind speed scale?

    • A.Saffir-Simpson (Hurricanes)✓ Correct Answer
    • B.Richter
    • C.Mercalli
    • D.Mohs

    Explanation: Saffir-Simpson scale categorizes hurricane wind speeds.

14. Q14.Santa Ana winds blow in:

    • A.California (USA)✓ Correct Answer
    • B.Argentina
    • C.Italy
    • D.Japan

    Explanation: Hot, dry winds in Southern California.

15. Q15.Buran is a cold wind in:

    • A.Russia / Siberia✓ Correct Answer
    • B.Canada
    • C.USA
    • D.France

    Explanation: Strong cold wind in Siberia.

16. Q16.Which wind is known as 'Koombang' in Java?

    • A.Local warm wind✓ Correct Answer
    • B.Monsoon
    • C.Cyclone
    • D.Cold wind

    Explanation: It disrupts tobacco crops.

17. Q17.The 'Pampero' is a cold wind affecting:

    • A.Pampas of Argentina✓ Correct Answer
    • B.Prairies
    • C.Steppes
    • D.Veld

    Explanation: Cold wind in South America.

18. Q18.Haboob is a dust storm in:

    • A.Sudan (North Africa)✓ Correct Answer
    • B.India
    • C.USA
    • D.China

    Explanation: Intense dust storm in the Sahara region.

19. Q19.Karaburan is a dust storm in:

    • A.Central Asia (Tarim Basin)✓ Correct Answer
    • B.Sahara
    • C.Kalahari
    • D.Atacama

    Explanation: Means 'Black Storm'.

20. Q20.Berg wind is hot and dry in:

    • A.South Africa✓ Correct Answer
    • B.Germany
    • C.Chile
    • D.Australia

    Explanation: Blows from the interior plateau to the coast.