Humidity and Precipitation – Test 1

Less dew is formed on cloudy nights because

When the relative humidity is 50 percent and air temperature is 30 degree C a cooling of air mass

When it rains, the relative humidity in the atmosphere is

Clouds with vertical development are known as

Arrange the following types of clouds in the increasing order of their heights :

1. cumulus
2. stratus
3. cirrus
4. nimbus

The primary rainbow has an angular radius of

Which of the following statements about convectional rainfall are true ?

1. The areas of the world, having an equatorial type of climate, receive this kind of rainfall.
2. It is usually torrential and accompanied by thunder and lightning
3. It is also known as 4 O’ clock rain.

The instrument used for measuring relative humidity in air is

Which of the following is not a form of precipitation ?

Clear nights are colder than cloudy nights because of

Consider the following statements about Nimbus clouds :

1. These are thick dark – grey or black clouds
2. They are found at very low height
3. They bring sharp showers, and rumble with lightning and thunder

Which of the above statements are true ?

Which of the following are forms of precipitation ?

1. snow
2. dew
3. hail
4. fog

Choose the correct answer from the codes given below :

A sudden fall in the barometric reading indicates

The formation of fog occurs when

Hail storm occurs in summer season due to the formation of clouds called

The dense mass of small water drops on smoke or dust particles in the lower layers of the atmosphere is

The lowest temperature to which air can be cooled by evaporating water into it is called

Which type of rain is caused by ascent of moisture laden air along a mountain

Relative humidity of the atmosphere is directly affected by

Atmospheric humidity is measured by

The form of precipitation in which the raindrops get frozen into ice on coming in contact with a cold layer of air near the earth’s surface is called

Cyclonic rainfall largely occurs in

When rain falls through a cold layer of air near the earth’s surface, rain drops get frozen into ice. This type of precipitation is called

The form of precipitation associated with strong convective currents in thunder storm ?

The Himalayas have snowline at 4300 m whereas in the Alps mountain, it is at 3000 m. This is because the