ATMOSPHERE MCQS SET 22

ATMOSPHERE MCQS SET 22

211) Which of the following statements is/are correct?
1. Cyclone is a low pressure system.
2. The wind movement is clockwise in the cyclone of northern hemisphere.
Select the correct answer using the code given below:
A) 1 only
B) 2 only
C) Both 1 and 2
D) Neither 1 nor 2

Answer: 1 only
   
212) The phenomenon of 'trade winds' takes place due to
A) conduction of heat
B) convection of heat
C) radiation
D) None of the above

Answer: convection of heat
   
213) Doldrums is a
A) Tropical wind belt
B) Tropical wind deflection belt
C) Sub-tropical wind belt
D) Tropical no-wind belt
 
Answer: Tropical no-wind belt
   
214) Which one among the following statements relating to an anticyclone is correct?
A) Anticyclone is a wind system with a high pressure centre
B) In anticyclone the movement of wind is inward
C) The contribution of an anticyclone towards determining weather of an area is quite significant
D) The movement of wind is clockwise in an anticyclone of southern hemisphere.

Answer: Anticyclone is a wind system with a high pressure centre
   
215) Troposphere is the hottest part of the atmosphere because
A) it is closest to the Sun
B) there are charged particles in it
C) it is heated by the Earth's surface
D) heat is generated in it

Answer: it is heated by the Earth's surface

216) Which one among the following statements relating to a cyclone is not correct?
A) It is a wind circulation system with a low pressure at the centre
B) It brings about sudden change In weather condition in an area
C) Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
D) It is known as hurricane in West Indies

Answer: Wind movement towards the low pressure centre of a cyclone is clockwise in the northern hemisphere
   
217) Which one among the following forces is most powerful in determining movement of wind including its velocity?
A) Gravitational force
B) Centrifugal force
C) Frictional force
D) Pressure gradient force

Answer: Pressure gradient force
   
218) Relative humidity
A) increases with increased temperature
B) decreases with increased temperature
C) decreases with decreased temperature
D) has no relation with increase or decrease of temperature

Answer: decreases with increased temperature
   
219) The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?
1. There are no clouds or water vapour in the lower stratosphere.
2. There are no vertical winds in the lower stratosphere.
Which of the statements given above is/are correct in this context?
A) 1 only
B) 2 only
C) Both 1 and 2
D) Neither 1 nor 2

Answer: Both 1 and 2
   
220) Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why?
1. Southern hemisphere has less landmass as compared to northern hemisphere.
2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere.
Which of the statements given above is fare correct?
A) 1 only
B) 2 only
C) Both 1 and 2
D) Neither 1 nor 2

Answer: 1 only