Daily Top-20 MCQs (Set-45)
for CSS Screening Test, PMS, PCS, FPSC and related Exams
Today’s MCQs are all about World General Knowledge, these MCQs are taken from different books and Past Papers which are helpful for all type competitive exams. All these MCQs are important for coming CSS Screening Test.
Which mission of 1997 indicated the existence of flowing water in the past (frozen now) on mars?
Path Finder mission of 1997 indicated the existence of flowing water in the past on mars.
Give the names of the moons of mars.
Phobos and Demos are the moons of mars.
What do we mean by Jovian planets?
Those planets of our solar system which are beyond the orbit of mars are called Jovian planets as their composition is similar to Jupiter.
How many times is the volume of Jupiter as compared to earth?
The volume of Jupiter is 1400 times that of the earth.
How many times is Saturn bigger than the earth by volume?
Saturn is 850 times bigger than earth by volume.
Who discovered Uranus? When?
William Herschel discovered Uranus in 1781 AD.
How many moons does Uranus have?
Uranus has 21 moons.
How many rings does Neptune have?
Neptune has two rings.
What does the upper crust of Neptune contain?
The upper crust of Neptune consists of rocks having methane, ammonia and water in ice form (frozen state).
Which planet has highly elliptical orbit?
Pluto has highly elliptical orbit.
What are asteroids?
Asteroids are rocks revolving around the Sun, which failed to (form planets), assemble into planets during the formation of the solar system.
Approximately how many asteroids are there between the orbits of mars and Jupiter?
About 105 (1 lakh) asteroids are there between the orbits of mars and Jupiter.
On what basis is the size of an asteroid estimated?
The size of an asteroid is estimated on the basis of luminosity.
What is the diameter of asteroid Ceres?
The diameter of asteroid Ceres is about 1000 km.
What is the diameter of asteroid Vesta?
The diameter of asteroid Vesta is about 400 km.
What are meteors?
Any substance of any size entering the earth’s atmosphere from space is known as a meteor.
What are meteorites?
A meteor of very large size which does not get burnt completely in earth’s atmosphere and strikes the surface of the earth is called a meteorite.
Which are the elements found in asteroids?
The elements found mainly in asteroids are silicon, nickel, chromium, calcium and probably gold and platinum.
Why meteors are called ‘shooting stars’?
Meteors are called ‘shooting stars’ because when they enter earth’s atmosphere with tremendous speed, they burn due to friction and a streak of light is seen.
What is ‘Cloud of Urt’?
The ‘Cloud of Urt’ is a group of about a million of celestial objects which are beyond the orbit of Pluto.