1. Understanding the Concepts
Robotics Competition
Understanding the Concepts
12/28/2018 1

2. Rules No more than 60 seconds per question
10 points for any question answered correctly
3 Bonus points to the first group that gives the correct answer if the original group gets it wrong
Winner is the group with the total number of points after all three rounds
12/28/2018

3. Question 1 The purpose of introducing a deadband is
To make the photo-sensors see different colors
To prevent the robots from hitting the wall
To awaken the dead cells of the circuit
To prevent the robot from changing directions unnecessarily
To kill the wheels of the robot
12/28/2018

4. Question 2 The order of control for your robot is:
You  Computer Program  Basic Stamp Chip  Servos  Wheels
Basic Stamp Chip  You  Computer Program  Wheels  Servos
You  Basic Stamp Chip  Servos  Computer Program  Wheels
Computer Program  Basic Stamp Chip  Servos  Wheels You
12/28/2018

5. Question 3 From the above figure,
Left
Right
From the above figure,
The RCtime for the left wheel is greater
The RCtime for the right wheel is greater
Both RCtimes are equal
It is not possible to tell which RCtime is greater
12/28/2018

6. Question 4
I want my robot to move forward in full speed, which of the following commands is correct if the left wheel is connected to port 12 and the right wheel is connected to port 13 ?
A. Pulsout 13, 500
Pulsout 12, 500
B. Pulsout 13, 500
Pulsout 12, 1000
C. Pulsout 13, 1000
Pulsout 12, 500
D. Pulsout 13, 1000
Pulsout 12, 1000
E. Pause 20
12/28/2018

7. Question 5 What does the above code do? Powers up ports 12 and 13
Low 12
Low 13
What does the above code do?
Powers up ports 12 and 13
Resets port 12 and powers up port 13
Resets ports 12 and 13
Resets port 13 and powers up port 12
Moves the left wheel bacwards
12/28/2018

8. Question 6 This is what you want:
Which of the following commands is correct?
Note:
fwd_pulse moves the robot fwd
left_pulse moves the robot left
right_pulse moves the robot right
Deadband = 2
A. If abs(left_photo-right_photo) < 7 then fwd_pulse
if left_photo > right_photo then right_pulse
if left_photo < right_photo then left_pulse
Right
B. If abs(left_photo-right_photo) > 7 then fwd_pulse
if left_photo > right_photo then right_pulse
if left_photo < right_photo then left_pulse
Left
C. If abs(left_photo-right_photo) < 7 then fwd_pulse
if left_photo < right_photo then right_pulse
if left_photo > right_photo then left_pulse
D. If abs(left_photo-right_photo) < 7 then fwd_pulse
if left_photo > right_photo then right_pulse
if left_photo > right_photo then left_pulse
12/28/2018

9. Question 7
Suppose the left wheel is connected to p12 and the right wheel is connected to p13, what does the following code do?
Makes the robot move forward
Makes the robot move backwards
Makes a left turn
Makes a left spin
Makes a right turn
pulsout 12, 1000
pulsout 13, 1000
12/28/2018

10. Question 8
If the resistance of a photoresistor is increased, its RCtime will
Become greater
Become Smaller
Remain the same
Be reversed
Disappear
12/28/2018

11. Question 9 Which of the following is true? Room A Room B
I need a higher deadband in Room A because the RCtimes of the sensors will be higher in Room A
I need a higher deadband in Room A because the RCtimes of the sensors will be lower in Room A
I need a higher deadband in Room B because the RCtimes of the sensors will be higher in Room B
I need a higher deadband in Room A because the RCtimes of the sensors will be lower in Room B
12/28/2018

12. Question 10 What does the above code do? Makes the robot move forward
‘ robot moves forward
What does the above code do?
Makes the robot move forward
Makes the robot think about moving forward
Makes the right and left wheels move in opposite directions
Nothing
Confuses the robot
12/28/2018