Top 150+ Solved Atmosphere MCQ Questions Answer
Q. Which one among the following local winds is not characteristically hot and dry? [Asstt Commdt 2011]
a. Sirocco
b. Mistral
c. Khamsin
d. Chinook
Q. Relative humidity [Asstt Commdt 2011]
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
Q. 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? [CSAT 2011]
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
Q. Westerlies in southern hemisphere are stronger and persistent than in northernhemisphere. 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? [CSAT 2011]
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2
Q. A layer in the Earth's atmosphere called Ionosphere facilitates radio communication.Why? 1. The presence of ozone causes the reflection of radio waves to Earth. 2. Radio waves have a very long wavelength. Which of the statements given above is fare correct? [CSAT 2011]
a. 1only
b. 2 only
c. Both 1and 2
d. Neither 1 nor 2
Q. Consider the following statements about anticyclones: (1) The winds are divergent, and spiral out from the centre of high pressure (2) The air moves clockwise in the Northern Hemisphere and anticlockwise in Southern Hemisphere (3) It is accompanied by heavy rainfall (4) A sudden rise in barometric reading heralds the approach of anticyclone Which of these statements are correct?
a. 1 and 2
b. 1 and 4
c. 1, 2 and 3
d. 1, 2 and 4
Q. Which one of the following statements is correct? [IAS 2004]Hurricanes:
a. form at the equator
b. are not as large as tornadoes
c. develop over warm ocean areas
d. tend to intensify when they move over land surfaces
Q. The instrument used for measuring relative humidity in air is :
a. hygrograph
b. hydrograph
c. pantograph
d. barograph
Q. Atmospheric humidity is measured by: [NDA 1994]
a. Psychrometer
b. Anemometer
c. Lysimeter
d. Hydrometer
Q. Frontal rain is caused by:
a. convection currents
b. winds from sea
c. cyclonic activity
d. condensation of water evaporated from mountains
Q. A sudden fall in the barometric reading indicates:
a. rain
b. storm
c. fine weather
d. extreme cold
Q. Relative humidity of the atmosphere is directly affected by :
a. change in atmospheric pressure
b. change in atmospheric temperature
c. change in the direction of winds
d. none of these
Q. A type of rainfall which occurs when wind rises up along a hill or mountain barrier iscalled: [NDA 2004]
a. anti-cyclonic
b. convectional
c. cyclonic
d. orographic
Q. Choose the incorrect statement:
a. Capacity of air to hold moisture decreases with a rise in temperature of the air
b. The air pressure decreases with an increase in temperature
c. Absolute humidity is expressed in grams per cubic metre of air
d. With an ascent of every 165 metres, the temperature is reduced by 1°C