Exam Questions-Extreme Robots, Summer 2004


Mars Exploration Rovers, Presented by Maria Bualat
1) What aspect of a current Mars rover might be considered as a determinant of the lifespan of a rover on Mars?
a. Solar panels get covered in dust and limit the daily amount of power available to the rover
b. Batteries have a limited life span
c. Biological life forms corrode the systems
d. Both a and b

2) What might be considered the primary determinant in the daily distance achieved by a rover on Mars?
a. Solar panels get covered in dust and limit the daily amount of power available to the rover
b. Batteries have a limited life span
c. Biological life forms corrode the systems
d. Both a and c

3) What uses the largest amount of power in the K9 rover?
a. Camera Hands Lens Microscope
b. Communication of data between rover and control center
c. Computation Involved in Obstacle Avoidance
d. Wheel Motors

4) What is the fault diagnosis system and what is one issue in implementing it? (short answer)

5) Why can't you use a compass for orientation on Mars?
a. Atmosphere on Mars is too thin
b. Rover cannot read compass
c. Compasses break when they pass through the atmosphere
d. Mars has no magnetic field

6) What is an alternative means of orientation used by rovers like K9?
a. Non-electric sundial and maps of Mars attained by rover
b. GPS unit
c. Sun filter pointed straight up to give a bearing measurement
d. No real way to determine. Rovers simply map where they have been and store this information.

Intelligent Industrial Controls and Machine Learning, Presented by Charles Tolle
1) Order these control methods according to their typical usage based on increasing knowledge of the system to be controlled:
Linear/Non-Linear Control Theory, Stochastic Learning, Neural Networks, Fuzzy Logic

2) Which control method is largely based on empirical input output data?
a. Linear Control Theory
b. Stochastic Learning
c. Neural Networks
d. Fuzzy Logic

3) Which control method can be implemented merely by having a linguistic understanding of the system to be controlled?
a. Linear Control Theory
b. Stochastic Learning
c. Neural Networks
d. Fuzzy Logic

4) Which control method can be used when the system to be controlled changes over time and you do clearly understand much about how to describe the system at all
a. Linear Control Theory
b. Stochastic Learning
c. Neural Networks
d. Fuzzy Logic
4b) How does this method perform its control?

5) Choose the controller technology that most readily allows for the accommodation of both a measurement as well as its confidence level
a. Linear Control Theory
b. Stochastic Learning
c. Neural Networks
d. Fuzzy Logic

6) Choose the controller technology that allows easy creation of forward and reverse input-output relationships for a system to be controlled
a. Linear Control Theory
b. Stochastic Learning
c. Neural Networks
d. Fuzzy Logic

7) Pair the system to be controlled with the controller technology INEEL choose to controller it:
Bio-reactor Fuzzy Logic
Cuppola Furnace Stochastic Learning
Glass making Neural Network

Robots for Hazardous Environments, Presented by Mark McKay
1) Why do scientists and engineers need to inspect pipes from old chemical/nuclear plants?
a. Before pipes can be dismantled and cleaned up, engineers must know what materials are present
b. To see if any new life forms have developed in the pipes
c. To determine if any of the materials used in construction of the facility can be reused
d. Inspection of pipes ensures no animals have moved into them

2) What advantage does SPCS have over traditional pipe inspection systems?
a. Robotic inspection is much less expensive
b. It is difficult for 'pusher' systems to navigate multiple bends
c. Pipes can vary in size, rendering certain traditional systems non-functional
d. Robots aren't affected by radiation
e. Both b. and c.

3) What was the biggest shortcoming of the IDCS System?
a. It could not travel more than 100 feet
b. It could only operate in ducts smaller than 6 inches in diameter
c. Only a limited ability to take samples existed
d. No radiation sensor was included

4) What was the primary reason why humans could not be directly involved in the dismantlement of the Chicago Pile-Five reactor?
a. The building was structurally damaged
b. The site was too remote for humans to spend an extended amount of time on site
c. Radiation fields around the reactor exceeded 1 Rad/Hour
d. The atmosphere in the facility had become too Carbon-Dioxide rich

5) In what way(s) did the Dual Arm Work Platform assist in reactor dismantlement?
a. It could operate in a very confined space (less than 10 feet in diameter)
b. High Speed drive train allowed for quick movement around reactor
c. Arms with seven degrees of freedom could perform most tasks
d. Engineers could operate it from a safe, remote location
e. a, b, and d


Industrial Robots in Radiation Fields, Presented by Dr. Herschel Smartt

1) How many axes or degrees-of-freedom of motion are needed for a robot to place an object at any point and any orientation in a workspace?
a. 6
b. 8
c. 12
d. 3

2) What is the most common means of determining the position of individual robot axes or joints?
a. Sensors
b. Magnets
c. Encoders
d. Silicon wafers

3) What component is being protected when motors or sensors are radiation shielded?
a. Wires running from the equipment
b. Electronic components (silicon wafers, etc)
c. Lubricated shafts
d. Magnets

4) From the perspective of robot coordinate systems, name three classes of robots.

5) From the perspective of the type of positional information provided, name two classes of position sensors.

6) What is a good means of determining the position of individual robot axes or joints for use in a radiation field?
a. Resolvers
b. Compass
c. Video Camera
d. Tether

Autonomous Robots for Hazardous Environments, Presented by David Bruemmer
1) What are some current limitations to robotic intelligence?
a. Very little true autonomy exists in current robots
b. System self-awareness is very limited, inhibiting trouble-shooting
c. Robots often repeat the same mistakes
d. Computers are not advanced enough to provide the requisite processor power
e. a, b, and c

2) Surveying of the TAN 616 facility revealed what?
a. Humans can work far more efficiently without robot assistants
b. Teleoperated robots very rarely had communications problems
c. Humans and robots must work together as a cohesive unit
d. Robots will one day become self-aware and take over the world

3) All of the following would be needed for a robot to be a full team member of a project except:
a. Intrinsic intelligence and knowledge
b. Ability to protect human, environment, and self
c. Recognize when help is needed
d. Be responsible for daily chores (food, living space management, etc.)

4) What is the definition of adjustable autonomy?
a. Autonomy shifts to support changing needs of humans and robot
b. Human operators can select which sensors to use
c. Robot can select how much power it wants to use
d. Robots come with a dial on them to select level of autonomy

5) (True or False) Time required to complete an operation decreases with an increasing number of robots performing the operation.


Robots in Extreme Radiation Environments, Presented by Charles Neveu
1) Why can't internal combustion engines be used in environments containing radioactive dust?
a. Because their filters become contaminated and must be treated as radioactive waste
b. Because the radioactive dust inhibits the engine from igniting properly
c. It's too dangerous to try to use anything kind of combustion electronics in any radioactive environment

2) Why do high-radiation robots need such heavy tethers?
a. IC's are sensitive to radiation, so the onboard electronics is limited to what is absolutely necessary; Everything else is offboard and connected by tether.
b. They are often exposed to environments that are extremely cluttered; A heavy tether is necessary to ensure that the robot will be pulled back and returned safely.
c. The tether is used for large amounts of data transfer from the camera and sensors (on the robot) to the receiving station

3) (Choose one) Describe in one sentence the mass-compounding problem OR give an example of the mass-compounding problem.

Extreme Life: Earth and Mars, Presented by Dr. Chris McKay
1) What would be the implications of a second genesis of life on Mars?
a. Martian life possibly populated the Earth millions of years ago
b. Life could be common throughout the universe
c. Humans could easily live on Mars in the future
d. It might be possible to re-populate Mars with Martian life

2) Why does no liquid water exist on the surface of Mars?
a. Too much Carbon Dioxide exists in the atmosphere
b. The polar areas are too cold
c. The air pressure is too low
d. Not enough water frost exists

3) Why is Antarctica an appropriate Mars analog for searching for bodies of water?
a. Certain lakes exist in Antarctica that have very cold average temperatures
b. The area is largely ice-free
c. The air pressure is high enough to allow for melting/sublimination
d. Glacier flow simulates what water cycle would look like on Mars
e. All of the above

4) Why are fossils insufficient for determining the nature of life?
a. No biological material is present, making it impossible to compare it to life on Mars
b. Fossils are typically too small to be of any use
c. Fossils and rocks look very similar
d. It is hard to prove that a fossil really came from Mars, and not somewhere else

5) All of the following are possible sources of Martian biology except:
a. Viable spores in the soil
b. Extant subsurface life
c. Organisms preserved in geological formations on the surface
d. Organisms preserved in permafrost


New Concepts for Robotics Space Exploration Systems, Presented by Dr. Silvano Colombano
1) What issues does the "Subsumption Architecture" try to solve?
a. Completing a task as fast as possible
b. Coordinating different tasks simultaneously
c. Representing objects symbolically
d. Building "human level" intelligence into robots from scratch

2) What is a "reactive" system?
a. One in which no deliberation is made beforehand
b. One in which decisions are made using a built-in set of reactions
c. One that is used in an environment where the world cannot be entirely defined or is not necessarily predictable
d. All of the above

3) What category of systems does the Scorpion mainly belong to?
a. Trigon
b. Biomimetic
c. Self-assembling
d. Modular

4) What category of systems do the snakebots mainly belong to?
a. Trigon
b. Biomimetic
c. Self-assembling
d. Modular

YOU ARE DONE!! Please see submission details.