Earth Gk interview questions – page 2

The mean radius of the earth is approximately

1. 3200 Km
2. 6400 Km
3. 9600 Km
4. 12800 Km

What percentage of insolation is received by the earth’s surface?

1. 47%
2. 51%
3. 66%
4. 87%

The position of the sun is annually twice over head at Singapore because of the

1. Parallelism of inclined axis of the earth
2. Elliptical path of the earth’s orbit
3. Rotation of the earth
4. Revolution of the earth

Which part of the earth’s surface receives the highest amount of insolation?

1. Water bodies
2. Land masses
3. Tropical deserts
4. Equatorial region

Of the total volume of the earth, which layer forms the major part?

1. Core
2. Sial
3. Sima
4. Mantle

The speed of rotation of the earth is

1. 25km/sec.
2. 31km/sec.
3. 39.5km/sec.
4. 9.72km/sec.

Vernal Equinox occurs on

1. March 21
2. June 21
3. September 23
4. December 21

Days and nights are equal throughout the globe when Sun is above

1. Poles
2. Tropic of Cancer
3. Tropic of Capricorn
4. Equator

The size of the earth was first measured by

1. Isaac Newton
2. Eratosthenes
3. Copernicus
4. Galileo

The fixed path along which the earth revolves round the sun is called

1. The earth’s orbit
2. The celestial sphere
3. The elliptic path
4. The ecliptic plane

Heat received by earth from the Sun is known as

1. Thermal radiation
2. Solar radiation
3. Solar heat
4. Insolation

The seasonal contrasts are maximum in

1. High latitudes
2. Low latitudes
3. Mid latitudes
4. Sub tropics

Which one of the following aptly describes the generalized shape of the continents?

1. Triangular
2. Circular
3. Hexagonal
4. Rectangular

Geostationary orbit is a height of

1. 6 Km
2. 1000 Km
3. 3600 Km
4. 36000 Km

The approximate surface temperature on the sunlit side of the earth is

1. 0°C
2. 17°C
3. 23°C
4. 31°C

The circumference of the earth was first calculated by

1. Aryabhatta
2. Wegener
3. Galileo
4. Eratosthenes

The study of time in relation to the earth’s history is called

1. Geography
2. Geohistology
3. Palaeontology
4. Geochronology

Which of the following phenomenon gives an evidence for the spherical shape of the earth?

1. Rotation of Earth
2. Revolution
3. Solar eclipse
4. Lunar eclipse

Which of the following pairs of metals are supposed to constitute the internal core of the earth?

1. Nickel & Iron
2. Iron & Copper
3. Magnesium & Lead
4. Chromium& Iron

The speed of rotation of the earth is the highest

1. Along the Equator
2. At the North pole
3. Along the Tropic of Cancer
4. Along the Arctic Circle