ATMOSPHERE MCQS SET 21

ATMOSPHERE MCQS SET 21

201) When a descending air contracts and its volume decreases, what happens to its temperature?
A) Its temperature decreases
B) Its temperature increases
C) Its temperature remains constant
D) Its temperature first increases. then decreases

Answer: Its temperature increases   

202) Consideration is a process which occurs when
A) temperature falls below 0∘C
B) absolute humidity becomes equal to relative humidity
C) temperature in the air parcel remains static
D) relative humidity becomes 100% and more

Answer: relative humidity becomes 100% and more
   
203) Consider the following statements regarding the distribution and pattern of isotherms
1. In the northern hemisphere, isotherms bend sharply equator-ward over the continents during winter.
2. Temperature gradients are greater in summer than in winter in the northern hemisphere.
Which of the statement(s) given above is/are correct?
A) 1 only
B) 2 only
C) Both 1 and 2
D) Neither 1 nor 2

Answer: 1 only
   
204) With reference to convectional type of rainfall, consider the following statements
1. It is a warm weather phenomenon.
2. This rainfall is associated with cumulonimbus clouds.
Which of the statement(s) given above is/are correct?
A) 1 only
B) 2 only
C) Both 1 and 2
D) Neither 1 nor 2

Answer: Both 1 and 2
   
205) A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct?
A) Cloud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time
B) Cloud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds
C) Cloud Burst occurs only in hilly areas
D) There is no satisfactory technique till now for predicting Cloud Burst

Answer: Cloud Burst occurs only in hilly areas

206) What is the major role of a greenhouse gas that contributes to temperature rise of the Earth's surface?
A) Transparent to both incoming sunlight and outgoing infrared radiation
B) Stops both incoming sunlight and outgoing infrared radiation
C) Lets outgoing infrared radiation pass through but stops incoming sunlight
D) Lets incoming sunlight pass through but stops outgoing infrared radiation

Answer: Lets incoming sunlight pass through but stops outgoing infrared radiation
   
207) Logically, what does a continually rising air pressure indicate?
A) Advent of unsettled and cloudy weather
B) Advent of a cyclone
C) Fine and settled weather
D) Fine and unsettled weather

Answer: Advent of unsettled and cloudy weather
   
208) What is a cloudburst?
A) It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
B) It refers to 50mm rain over a period of time
C) It is caused by rapid condensation of very high clouds
D) It refers to a thunderstorm with little rain

Answer: It refers to sudden and copious rainfall over a small area which often lasts for only a few minutes
   
209) Rain shadow effect is associated with
A) Cyclonic rainfall
B) Orographic rainfall
C) Convectional rainfall
D) Frontal rainfall

Answer: Orographic rainfall
   
210) The intensity of insolation depends on
A) Altitude
B) Nature of terrain
C) Wind
D) Latitude

Answer: Latitude