WELD 321 FINAL EXAM WITH COMPLETE SOLUTIONS 100%
VERIFIED!!! ALREADY GRADED A+
T/F A sensor controls physical actions. - (answer)False
The most common type of joint for robot construction is a prismatic (linear) joint
-True
-False - (answer)False
Systems that assume the motion has taken place are called closed loop.
True
False - (answer)False
Turning rolls are not affected by off-road loads
true
false - (answer)False
An all position welding carriage/tractor rides on its ________.
-Track
-Guide pins
-Torsion Springs
-Tires - (answer)Tracks
The principal strengths of a(n) ________ actuator includes high performance and small size.
-Air Motor
-Servo Motor System
-Stepper Motor
-Hydraulic Motor - (answer)Servo Motor System
,WELD 321 FINAL EXAM WITH COMPLETE SOLUTIONS 100%
VERIFIED!!! ALREADY GRADED A+
An absolute encoder __________
-moderates motor pulse width
-retains its position on power failure
-is direct drive with no backlash - (answer)is direct drive with no backlash
A servo motor has less consistent torque than a stepper motor across its speed range.
True
False - (answer)False
Advantages of servomotors include their small size and high performance.
True
False - (answer)True
T/F Repeatability is defined as the range of positions attained when the system is repeatedly
commanded to one location under identical conditions. - (answer)True
T/F Absolute encoders do not lose their position when powered off. - (answer)True
T/F An error in positioning caused by the reversal of travel direction is hysteresis error. - (answer)False
T/F A laser motion controller must give smooth continuous motion. - (answer)True
T/F A welding manipulator can be used for straight line and longitudinal welds. - (answer)True
A robot manipulator is a series of ________ and joints capable of moving in various directions to provide
motion.
-Mechanical Linkages
,WELD 321 FINAL EXAM WITH COMPLETE SOLUTIONS 100%
VERIFIED!!! ALREADY GRADED A+
-Coordinate Systems
-Cylinders
-Work Envelopes - (answer)mechanical linkages
T/F 3-D laser motion systems are the most common type of laser motion system installed in industry. -
(answer)False
T/F The time required to load/unload a positioner must be included in the cost justification. -
(answer)True
A pinch point is any distance between moving and non-moving equimpment less than ________.
36"
48"
24"
12" - (answer)24"
A Delta robot typically has ________ degrees of freedom
-4
-6
-2
-0 - (answer)4
What tier of master controller coordinates the functions of multiple PLC's, DCS's and other automated
devices?
-Process Controllers
-Cell Controllers
-Vision Controllers
-Corporate Controllers - (answer)-Cell Controllers
, WELD 321 FINAL EXAM WITH COMPLETE SOLUTIONS 100%
VERIFIED!!! ALREADY GRADED A+
Which answer below is an advantage of multi-axis motion controllers?
-Simple drive electronics
-Lower cost than single axis controller
-Synchronized/coordinated motion
-Numerous suppliers - (answer)Synchronized/coordinated motion
What is the most significant problem with laser motion systems?
-Depth of Focus Shift
-Laser Temperature Control
-Dynamic Positioning Accuracy
-Laser Power Distortion - (answer)Dynamic Positioning Accuracy
What should the worst-case accuracy be for an open loop robotic positioner?
± 0.01"
± 0.1"
No answer text provided.
± 0.001" - (answer)± 0.01"
A Cartesian/gantry robot has a work envelope shaped like ________ in the picture below and is made up
of at least __________ rotary joint(s) and at least __________ prismatic/sliding joint(s). - (answer)A,3,3
A stepper motor is ________.
-able to retain its position on power failure
-the smallest electrical machine increment
-commonly used with open loop control - (answer)commonly used with open loop control
VERIFIED!!! ALREADY GRADED A+
T/F A sensor controls physical actions. - (answer)False
The most common type of joint for robot construction is a prismatic (linear) joint
-True
-False - (answer)False
Systems that assume the motion has taken place are called closed loop.
True
False - (answer)False
Turning rolls are not affected by off-road loads
true
false - (answer)False
An all position welding carriage/tractor rides on its ________.
-Track
-Guide pins
-Torsion Springs
-Tires - (answer)Tracks
The principal strengths of a(n) ________ actuator includes high performance and small size.
-Air Motor
-Servo Motor System
-Stepper Motor
-Hydraulic Motor - (answer)Servo Motor System
,WELD 321 FINAL EXAM WITH COMPLETE SOLUTIONS 100%
VERIFIED!!! ALREADY GRADED A+
An absolute encoder __________
-moderates motor pulse width
-retains its position on power failure
-is direct drive with no backlash - (answer)is direct drive with no backlash
A servo motor has less consistent torque than a stepper motor across its speed range.
True
False - (answer)False
Advantages of servomotors include their small size and high performance.
True
False - (answer)True
T/F Repeatability is defined as the range of positions attained when the system is repeatedly
commanded to one location under identical conditions. - (answer)True
T/F Absolute encoders do not lose their position when powered off. - (answer)True
T/F An error in positioning caused by the reversal of travel direction is hysteresis error. - (answer)False
T/F A laser motion controller must give smooth continuous motion. - (answer)True
T/F A welding manipulator can be used for straight line and longitudinal welds. - (answer)True
A robot manipulator is a series of ________ and joints capable of moving in various directions to provide
motion.
-Mechanical Linkages
,WELD 321 FINAL EXAM WITH COMPLETE SOLUTIONS 100%
VERIFIED!!! ALREADY GRADED A+
-Coordinate Systems
-Cylinders
-Work Envelopes - (answer)mechanical linkages
T/F 3-D laser motion systems are the most common type of laser motion system installed in industry. -
(answer)False
T/F The time required to load/unload a positioner must be included in the cost justification. -
(answer)True
A pinch point is any distance between moving and non-moving equimpment less than ________.
36"
48"
24"
12" - (answer)24"
A Delta robot typically has ________ degrees of freedom
-4
-6
-2
-0 - (answer)4
What tier of master controller coordinates the functions of multiple PLC's, DCS's and other automated
devices?
-Process Controllers
-Cell Controllers
-Vision Controllers
-Corporate Controllers - (answer)-Cell Controllers
, WELD 321 FINAL EXAM WITH COMPLETE SOLUTIONS 100%
VERIFIED!!! ALREADY GRADED A+
Which answer below is an advantage of multi-axis motion controllers?
-Simple drive electronics
-Lower cost than single axis controller
-Synchronized/coordinated motion
-Numerous suppliers - (answer)Synchronized/coordinated motion
What is the most significant problem with laser motion systems?
-Depth of Focus Shift
-Laser Temperature Control
-Dynamic Positioning Accuracy
-Laser Power Distortion - (answer)Dynamic Positioning Accuracy
What should the worst-case accuracy be for an open loop robotic positioner?
± 0.01"
± 0.1"
No answer text provided.
± 0.001" - (answer)± 0.01"
A Cartesian/gantry robot has a work envelope shaped like ________ in the picture below and is made up
of at least __________ rotary joint(s) and at least __________ prismatic/sliding joint(s). - (answer)A,3,3
A stepper motor is ________.
-able to retain its position on power failure
-the smallest electrical machine increment
-commonly used with open loop control - (answer)commonly used with open loop control
