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WorksheetsMT2-9 Ro1 1718
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
In VEX robotics a 5 x 15-hole sheet of metal is called?
a)
C-channel
b)
Plate
c)
Angle
d)
Cortex
2.
The VexNet keys that get plugged in for communication between the controller and the cortex are?
a)
Tethered
b)
Memory
c)
2.4 GHz Wi-Fi
d)
Bluetooth
3.
The interlocking of gear teeth is known as what?
a)
Mish
b)
Mash
c)
Mush
d)
Mesh
4.
A robot’s worst enemy besides a dead battery is?
a)
Friction
b)
Operator
c)
Loose nuts
d)
Gearing
5.
The type of part that moves a chain is known as a what?
a)
Spur
b)
Spigot
c)
Cogged
d)
Sprocket
6.
A type of nut that has a serrated washer attached to it is the?
a)
Hex Nut
b)
Nylock Nut
c)
Keps Nut
d)
Pistachio Nut
7.
A standard servo’s throw can rotate approximately how far in degrees?
a)
360
b)
225
c)
90
d)
180
8.
A VEX servos throw is approximately how far in degrees of rotation?
a)
180
b)
220
c)
110
d)
90
9.
What are the Logic subsystem components for a VEX robot?
a)
Cortex and Controlling
b)
Cortex and Controlled
c)
Cortex and Controller
d)
Cortez and Controller
10.
What is a solid square shaft that is used for connecting motors to gears and wheels?
a)
Driver
b)
Spacer
c)
Bit
d)
Drive Shaft
11.
Sometimes the Joystick is classified in the Control System. What else is usually classified in the control system?
a)
Joystick Batteries
b)
VexNet Key 2.0
c)
RobotC
d)
Microcontroller
12.
What sub-system would a servo motor be classified as?
a)
Structure
b)
Sensor
c)
Control
d)
Motion
13.
Identify the illustrated component.
a)
Keps Nut
b)
Nylock Nut
c)
Bolt Nut
d)
8-32 Screw Nut
14.
Identify the illustrated component.
a)
Brad
b)
Ease out
c)
Mini-clamp
d)
Pop Rivet
15.
When a tire is described as being a 5” knobby, what does the word “knobby” refer to?
a)
Tread
b)
Diameter
c)
Stubble
d)
Gearing
16.
John’s gear train locks up every now and then. What could be the problem?
a)
Gear traction
b)
Gear alignment
c)
Gear ratio
d)
Spur gearing
17.
Lara’s robot is supposed to climb a wall, but the tires just spin. What could be the problem?
a)
Motor torque
b)
Gear ratio
c)
Tire traction
18.
Alice’s robot tends to wander off to the left instead of going straight? What might be the problem?
a)
Motors are geared to low
b)
The frame is too heavy
c)
The frame is not square
d)
The tires are too small
19.
Jim’s robot works great when it is picked up in the air, but when it is put on the floor, it will not even start moving. What might be the problem?
a)
Geared to high to provide enough torque to overcome initial friction
b)
Geared to low to provide enough speed to start moving
c)
Not enough weight to give enough traction
d)
Missing a gear train
20.
When wires are tied to the frame out of the way of moving parts, what is the process called?
a)
Wire netting
b)
Wire networking
c)
Wire management
d)
Wire nutting
21.
What is the classroom’s programming language used to program the VEX motors to move?
a)
C++
b)
EasyC Robotics
c)
Cobol
d)
RobotC
22.
What is the most common type of gear used and the type used on the TumbleBot?
a)
Bevel Gear
b)
Spur Gear
c)
Worm Gear
d)
Planetary Gear
23.
The diagrams used to give instructions and directions for how to connect technical parts, pieces, and devices are called what?
a)
Schematics
b)
Pictures
c)
Diagramics
d)
Draftologics
24.
When gears lock up due to misalignment, or incorrect meshing, what is it called?
a)
Lock down
b)
Gear seizing
c)
Gear binding
d)
Gear stripping
25.
What is the underlying premise for programming the 3 laws of robotics into robots?
a)
Rogue robots would no longer be running the government
b)
Robots should adhere to the same moral & ethical decisions humans do
c)
Law is rules. Grace is emotional. Robots have no emotions.
d)
The world is 3-dimensional. Robots need to think that way.
26.
26. What agency regulates which wireless frequencies can used and the purpose for which they are used in America?
a)
Federal Aviation Agency
b)
Federal RC Commission
c)
Federal Communications Commission
d)
Federal Communications Agency
27.
What is a disadvantage of using robots in an industrial setting? Less well paid low-tech jobs available
a)
Less well paid low-tech jobs available
b)
Reduced labor cost
c)
Increased productivity
d)
Hostile environment quality improvement
28.
What would be an appropriate work habit for a design engineer?
a)
Tardiness
b)
Pilfering
c)
Diligence, Punctuality, Honesty, Industrious
d)
Slothfulness
29.
What would be a design parameter, or constraint, that need to be planned for during the design cycle?
a)
Materials
b)
Funding
c)
Time
d)
All of the above
30.
When a team has the reporter notify them of time constraints at regular intervals, which management technique are they using?
a)
Role notification
b)
Pest control
c)
Time zoning
d)
Time management
31.
How many motor ports are there on a VEX microcontroller?
a)
6
b)
8
c)
10
d)
12
32.
How many motor ports must use an electronic speed control on a VEX microcontroller?
a)
6
b)
8
c)
10
d)
12
33.
What is the minimum number of gears needed to make a compound gear train?
a)
2
b)
3
c)
4
d)
6
34.
A simple gear train uses _____ number of gears as a minimum?
a)
2
b)
3
c)
4
d)
6
35.
If we used a 84 tooth driving gear with an 12 tooth driven gear what is the gear ratio?
a)
7:1
b)
1:7
c)
4
d)
7
36.
When 2 wheels on a robot provide all of the movement for that robot, the robots drive train is?
a)
All wheel drive
b)
4 wheel drive
c)
2 wheel drive
d)
None of the above
37.
A scoop is used to carry objects on a robot. The carrying capacity of the scoop is also know as?
a)
Net Weight
b)
Payday
c)
Gross Vehicle Weight
d)
Payload
38.
When both joysticks on a controller are used to control the robot’s direction it is using?
a)
Tank Drive
b)
Arcade Drive
c)
Drive Time
d)
Drive Logic
39.
A robot keeps tipping over when a load is picked up by the arm and claw. What is causing this?
a)
Warp Drive
b)
Center Line
c)
Specific Gravity
d)
Center of Gravity
40.
What are the standard gear sizes of vex robotics?
a)
12,20,32,60,84
b)
12, 36, 60, 84
c)
12,24,48, 60, 84
d)
12, 32, 42,62,82
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