_______ sensors have the ability to return a(n) ________ of values.

analog, range, digital, binary set

A system such as the one pictured below which uses operator control to move hazardous materials

is an example of an open loop control system.

Suppose you found that your line-following reads 50 off the line and 100 on the line.

75 would be a good threshold value

Which factor does NOT affect the speed of sound?

The sound amplitude (loudness) and frequency.

The VEX Ultrasonic Sensor is connected to:

A digital output and an interrupt port.

An autonomous robot ____________.

uses sensors to provide feedback

All Mars Rovers have needed autonomous driving functions because:

radio signals can take up to 20 minutes to get to Mars

Which of the following statements is true of the line-following sensor?

Uses an LED and a photo detector to see the line.

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Duplicate of Robotic SENSORS (REC UNIT 4) CPAS Review

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Robotic Sensors (MS Engineering CPAS Prep); emphasizes Learnmate REC Unit 4 content.

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Answers

1
If the speed of a sonar ping in water is 1500 m/sec and a ping takes 300 ms to return to a sub
300 m
450 m
the target is 112.5 m
225 m
2
_______ sensors have the ability to return a(n) ________ of values.
analog, range
analog, binary set
digital, range
digital, binary set
3
A system such as the one pictured below which uses operator control to move hazardous materials
is an example of an extraneous loop mechanism.
is an example of a closed loop control system.
is an example of an open loop control system.
is an example of a continuous loop control system.
4
A(n) ______ uses a disk with pie shaped wedges and optical sensor to measure distance.
compass
encoder
potentiometer
global positioning system
5
Suppose you found that your line-following reads 50 off the line and 100 on the line.
60 would be a good threshold value
25 would be a good threshold value
75 would be a good threshold value
150 would be a good threshold value
6
Digital sensors _______________.
are always on in easyC
can be only ON or OFF
do not work on robots with analog sensors
have a variety of values
7
Which factor does NOT affect the speed of sound?
In air, the altitude above sea level..
The temperature of the medium through which it travels.
The sound amplitude (loudness) and frequency.
The type of material through which the sound is traveling.
8
Most garage doors utilize a(n) ________ to tell the controller when the door is fully open.
ultrasonic sensor
limit switch
bump switch
ultraviolet LED and detector
9
The VEX Ultrasonic Sensor is connected to:
The Rx1 and/or the Rx2 ports.
A digital output and an interrupt port.
An analog input and a digital output.
An analog input and an interrupt port.
10
All autonomous robots have the following capabilities; which one must the robot perform first?
Interpretation
Action
Sensing
Combustion
11
In general, sensors provide ______ to a program via the controller.
feedback
programming
error messages
code
12
An autonomous robot ____________.
is controlled by remote control
strongly resembles an automobile
has wheels
uses sensors to provide feedback
13
All Mars Rovers have needed autonomous driving functions because:
the terrain makes remote control driving impossible
artificial intelligence of NASA robots is better than humans
joystick technology is not sensitive enough for fine control
radio signals can take up to 20 minutes to get to Mars
14
Which of the following statements is true of the line-following sensor?
Uses ambient light with a detector to see the line.
Is always plugged into motor port three (3).
Uses an LED and a photo detector to see the line.
Returns on/off (digital) value to indicate on/off the line.
15
A(n) _______ is a sensor that reports the rate of change in the speed of a moving object.
accelerometer
potentiometer
contagion
ultrasound

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