1. Which is the smallest planet ?
2. Which is the Fastest Planet revolves around the Sun ?
3. Which planet is the nearest to the Sun ?
4. Which is the largest known crater in Mercury ?
Answer: Caloris Basin
5. Which Planet's name has the meaning 'Messenger of God' in Roman?
6. How many Earth days are needed Mercury to orbits the Sun once ?
Answer: 88 days
7. Which planet was studied by Messenger Mission ?
8. Which planets in the Solar system are devoid of natural satellites?
Answer: Mercury, Venus
9. Which was the first space craft to visit Mercury ?
Important General knowledge Questions about the Planet Venus
1. Which is the Hottest planet in the solar system ?
2. Which are the Planets having no satellite ?
Answer: Venus , Mercury
3. Which is the Most Brightest Planet ?
4. Which planet has the name of a Roman Goddess of love ?
5. Which is the First spacecraft to soft-land on Venus ?
Answer: Venera 7
6. Which Country started the Venera mission to study Venus ?
Answer: USSR (Russia)
* 7. What is the name of plateau seen on the planet Venus ?
Answer : Lakshmi Planum
* 8. Which planet's day is longer than its year ?
For important Astronomy gk questions visit General knowledge questions about the planet Jupiter
For RRB frequently asked questions visit http://importantquestionsabout.blogspot.com/2012/08/rrb-frequently-asked-questions-2012.html