Physical Geography (Railway)

1. On which day summer solstice occurs in southern hemisphere? [RRC Hajipur Group 'D' Exam, 06.05.2012 (1st Sitting]

(1) 22nd December
(2) 23rd September
(3) 21st June
(4) 21st March

Correct Answer: (1) 22nd December

Solution:In southern hemisphere summer solstice falls on 22nd December.

2. Which of the following is natural satellite of the Earth? [RRC Hajipur Group 'D' Exam, 06.05.2012 (1st Sitting)]

(1) Mars
(2) Moon
(3) Venus
(4) Neptune

Correct Answer: (2) Moon

Solution:Of the inner planets, mercury and venus have no natural satellites. Earth has one large natural satellite. Known as the moon and Mars has two tiny natural satellites, phobosand Deimos.

3. Which one of the following is the largest source of natural energy to humans? [RRB ALP & Technician Exam, 17.08.2018 Shift-III]

(1) Plants
(2) Sun
(3) Animals
(4) Earth

Correct Answer: (2) Sun

Solution:The Sun is an infinite (at least in terms of human time scales) and renewable source of energy which is also by far the most important source of energy. Primary productivity (photosynthesis) is driven by sunlight and all fossil fuels are derived from plants.

4. What kind of recruitment comes when the sun, moon, and earth are aligned? [RRB RPF/RPSF SI Exam, 06.01.2019 Shift-II]

(1) Solar eclipse
(2) Syzygy
(3) Lunar Eclipse
(4) Conjunction

Correct Answer: (2) Syzygy

Solution:When at least three bodies are aligned in the same gravitational system the group is known as a syzygy. The most common occurrence of a syzygy is a solar or lunar eclipse. In a solar eclipse, the moon is in line between the earth and sun. blocking the view of the sun from earth.

5. What is the distance between the moon and the earth? [RRB RPF/RPSF SI Exam, 10.01.2019 Shift-II]

(1) 3.84 x 10⁵ km
(2) 4.84 x 10⁵ km
(3) 1.84 x 10 km
(4) 2.84 x 10⁵ km

Correct Answer: (1) 3.84 x 10⁵ km

Solution:The mass of earth is 6x10²⁴ kg and that of moon is 7.4 x 10²² kg and the distance between them is 3.84 x 10⁵ km.

6. What is the distance between Sun and Planet Jupiter? [RRB RPF/RPSF SI Exam, 10.01.2019 Shift-III]

(1) 978.5 Milliion Km.
(2) 778.5 Million Km.
(3) 678.5 Million Km.
(4) 878.5 Million Km.

Correct Answer: (2) 778.5 Million Km.

Solution:The distance from the Sun to Jupiter is approximately 779 million km. or 484 million miles. Jupiter is the fifth planet from the Sun and the largest in the Solar System. Jupiter is primarily composed of hydrogen with a quarter of its mass being helium, though helium comprises only about a tenth of the number of molecules.

7. The Autumn equinox occur on which date ? [RRB RPF/RPSF SI Exam, 11.01.2019 Shift-II]

(1) 21 or 23 June
(2) 21 or 23 March
(3) 22 or 23 December
(4) 22 or 23 September

Correct Answer: (4) 22 or 23 September

Solution:There are two equinoxes every year in September and March when the sun shines directly on the equator and the length of day and night is nearly equal. Seasons are opposite on either side of the Equator, so the equinox in September is also known as the autumnal (fall) equinox in the Northern Hemisphere, and is considered the first day of fall.

8. Which of the following is a gaseous planet? [RRB RPF/RPSF SI Exam, 11.01.2019 Shift-II]

(1) Mars
(2) Pluto
(3) Jupiter
(4) Earth

Correct Answer: (3) Jupiter

Solution:The four gas planets in our solar system are jupiter, saturn, neptune and uranus. The gas planets are made up almost entirely of gases, primarily hydrogen and helium. While they might have near-solid inner cores of molten heavy metals, they have thick outer layers of liquid and gaseous molecular hydrogen and helium and metallic hydrogen.

9. The Extreme outer layer of the Earth is called ? [RRB RPF/RPSF SI Exam, 11.01.2019 Shift-II]

(1) Crust
(2) Mantle
(3) Crode (core)
(4) Lithosphere

Correct Answer: (1) Crust

Solution:The four main layers of the Earth are the crust, mantle, outer core, and the inner core. The crust is the outermost laver of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle.

10. Which of the following planet is known as evening star? [RRB RPF/RPSF SI Exam, 12.01.2019 Shift-II]

(1) Mercury
(2) Mars
(3) Earth
(4) Venus

Correct Answer: (4) Venus

Solution:Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period(243 Earth days) of any planet in the Solar System and rotates in the opposite direction to most other planets. It is also called morning star and evening star.