Quiz
for October 10th, 2002
Mars Science and Operations
1. How many rovers (uncrewed mobile robots) have landed
on other planets and moons?
a) 1
b) 2
c) 3
d) 4
2. The MER 2003 rovers are planned to be landed >
30 degrees apart on the Mars surface. Why?
a) This allows easier communication with each rover.
b) This will compensate for the longer Mars day and allow
a normal Earth day to day operations.
c) The interplanetary trajectories don't allow landing
any closer
3. How were the pictures of the Sojourner rover on
the surface of Mars taken?
a) They were taken by the lander's cameras.
b) Sojourner took the images of itself.
c) The images were taken from orbit.
d) There were no pictures of Sojourner on the surface.
4. It takes between roughly 8 and 40 minutes to send
a signal to and from Mars. Why are most rover missions
planned around a 1 day uplink/downlink cycle?
a) To allow the team to say on a standard Earth based
9 to 5 schedule.
b) To allow sufficient time to analyze data, decide what
to do and validate commands.
c) It is only possible to communicate once per day.
d) The budgets don't allow more frequent commanding.
5. Which of the following is not true about the Martian
polar layered deposits:
a) They preserve the geologic history in the stratigraphy
b) They present an easier alternative to deep drilling.
c) They are believe to be easily traversable by rovers.
d) They are believed to be freshly deposited (~ few hundred
years)
Answers:
1. d
2. a
3. a
4. b
5. d
This web site subscribes
to the COPPA (Children's Online Privacy Protection Act) policy established
at NASA Headquarters.
We
may link to other sites for the convenience of visitors to this site. We
cannot be responsible for the content or collection practices of these sites
and recommend you read their privacy policies before providing them information.
NASA Official: