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DC motors

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Function of H-Bridge in DC motor control is

a)

Change the speed of the DC motor

b)

Change the direction of the DC motor

c)

Send feedback of the speed of the DC motor

d)

Measures the speed of the DC motor

2.

to make the Motor A rotate backward and Motor B stop

a)

Pin 9 - GND, Pin 8 - 5V, Pin 7 - GND

Pin 5 - GND, Pin 4 - GND, Pin 3 - GND

b)

Pin 9 - 5V, Pin 8 - GND, Pin 7 - 5V

Pin 5 - GND, Pin 4 - GND, Pin 3 - GND

c)

Pin 9 - 5V, Pin 8 - 5V, Pin 7 - GND

Pin 5 - 5V, Pin 4 - GND, Pin 3 - GND

d)

Pin 9 - GND, Pin 8 - 5V, Pin 7 - 5V

Pin 5 - GND, Pin 4 - GND, Pin 3 - GND

3.

Speed change of DC motor is controlled by

a)

Enable pin

b)

Input pins

c)

H-bridge

d)

Output pins

4.

How header file is to be defined to code for servo motors?

a)

# define Servo

b)

# include Servo

c)

#include<Servo.h>

d)

Servo myservo;

5.

If servo object is myServo and then servo control signal to make 150 degree angle, is coded as

a)

myServo.write(150);

b)

myServo.Write(852.5);

c)

myServo.write(852.5);

d)

analogWrite(852.5);

6.

Servo signal pin must be connected to

a)

any digital pin of Arduino

b)

analog input pins A0 to A5

c)

any one of the PWM pins

d)

5V pin

7.

What are the TRUE differences between this component in the picture and a DC MOTOR?

a)

This component can turn to specific angle and DC Motors cannot

b)

This component need 3 wires to connect

c)

DC Motor can turn to 180 degrees only

d)

DC Motor needs a signal wire, 5V and GND; this component needs 2 wires only

8.

choose the right order

a)

output - process - input

b)

process - output - input

c)

input - process - output

d)

input - output - process

9.

Which of the following lines serves the connection of servo motor attachment to pin 9?

a)

myservo.pinMode(9);

b)

myservo.attach(9);

c)

myservoattach(9)

d)

pinMode(servo,INPUT);

10.

I think I have learned _________ about Arduinos

a)

nothing at all

b)

a little bit, but I need to do all of the projects

c)

Much more, but I still get confused

d)

A lot so far, this is not difficult