IOT and applications (3160716) MCQs

MCQs of Sensors, Microcontrollers, and their Interfacing

Showing 11 to 20 out of 43 Questions
1 2 3 4 5
11.

For intensity control of an LED, it should be connected to

(a)

any digital pin
(b)

any analog pin
(c)

any digital or analog pin
(d)

only pwm  pins
Answer:

Option (d)

12.

The RGB LED will reserve how many digital pins of Arduino for interfacing?

(a)

1
(b)

2
(c)

3
(d)

4
Answer:

Option (c)

13.

Arduino Uno has _______ bit ADC inside.

(a)

8
(b)

10
(c)

12
(d)

6
Answer:

Option (b)

14.

Arduino is capable to generaten________ bit analog voltage with PWM.

(a)

8
(b)

10
(c)

12
(d)

9
Answer:

Option (a)

15.

The range of ADC in arduino is

(a)

0 to 255
(b)

0 to 256
(c)

0 to 1023
(d)

0 to 1024
Answer:

Option (c)

16.

To convert a variable from one range to another _______ function is used in Arduino IDE.

(a)

range
(b)

convert
(c)

convt
(d)

map
Answer:

Option (d)

17.

Find right option for map function

(a)

map(var,low_exisitng,high_existing,low_new,high_new)
(b)

map(var,high_existing,low_exisitng,high_new,low_new)
(c)

map(var,low_new,high_new,low_exisitng,high_existing)
(d)

map(low_exisitng,high_existing,low_new,high_new,var)
Answer:

Option (a)

18.

The component which converts physical quantity to electrical quantity is know as

(a)

Sensor
(b)

Actuator
(c)

Power Source
(d)

Memory
Answer:

Option (a)

19.

Find the correct syntax

(a)

digitalRead(2);
(b)

Serial.Write(a);
(c)

digital.write(2,LOW)
(d)

serial.print("Hi");
Answer:

Option (a)

20.

Find the correct syntax

(a)

digitalread(2);
(b)

Serial.Write(a);
(c)

Serial.println("Hi");
(d)

Serial.write(a)
Answer:

Option (c)

Showing 11 to 20 out of 43 Questions
1 2 3 4 5