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Electrohacks: Smart Devices Hackathon

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

What is a smart device?

a)

A smart device is a type of software application.

b)

A smart device is an electronic device that cannot connect to the internet.

c)

 an electric devices that can connect to the internet or other networks, and can collect, process, and transmit data.

d)

A smart device is a traditional household appliance.

2.

What is Arduino used for?

a)

Arduino is a type of computer software for word processing.

b)

Arduino is used for managing social media accounts.

c)

Arduino is primarily used for cooking recipes.

d)

Arduino is a microcontroller used for building electronic projects.

3.

What is LDR stands for ?

a)

laser design rate

b)

light dependent resistance

c)

light dark resistance

d)

lamp dark resistance

4.

Which Engineering discipline is primarily concerned with the design and development of Smart devices?

a)

Automobile Engineering

b)

Electrical Engineering

c)

Computer Engineering

d)

Civil Engineering

5.

Explain the concept of IoT (Internet of Things).

a)

A method for storing data in the cloud.

b)

A type of software that manages network security.

c)

The Internet of Things (IoT) is a network of interconnected devices that communicate and exchange data over the internet.

d)

A system that only connects computers to the internet.

6.

What are sensors, and how are they used in smart devices?

a)

Smart devices use sensors to monitor user activity and adjust settings for comfort and efficiency.

b)

Sensors are devices that only measure temperature and humidity.

c)

Sensors are only used in cameras for image processing.

d)

Sensors are primarily used for entertainment purposes in smart devices.

7.

How can you power an Arduino board?

a)

Power an Arduino board through a standard wall outlet

b)

Power an Arduino board with a light bulb

c)

Power an Arduino board using solar panels

d)

Power an Arduino board via USB, barrel jack, or battery.

8.

What is a Digital signal?

a)

A signal that is always high.

b)

A signal that alternates between only TWO levels, LOW or HIGH

c)

A signal that varies continuously over time.

d)

A signal that consists of only one frequency.

9.

How do smart devices enhance home automation?

a)

By allowing manual control of appliances only

b)

By enabling remote monitoring and control through apps

c)

By requiring constant internet connection

d)

By limiting functionality to basic tasks

10.

Elijah and Emma are working on a project. What do they use to solve engineering problems?

a)

Math, science, and technology

b)

Art, literature, and history

c)

Philosophy, ethics, and logic

d)

Politics, economics, and law

11.

Which of the following is a branch of engineering?

a)

Electrical engineering

b)

Medical science

c)

Literary analysis

d)

Political science

12.

Which of the following is an example of electrical engineering?

a)

Designing a new smartphone

b)

Writing a novel

c)

Painting a mural

d)

Composing a symphony

13.

What is the main goal of engineering?

a)

To analyze and study scientific phenomena

b)

To solve problems and create solutions

c)

To design and build military works

d)

To understand the nature of the universe

14.

What is the purpose of a loop in programming?

a)

Repeat a set of instructions

b)

Make decisions

c)

Store data

d)

Define functions

15.

Where can you typically find microcontrollers?

a)

Home appliances, cars, smartphones

b)

Large-scale servers

c)

Desktop computers

d)

Supercomputers

16.

Which of the following is NOT a characteristic of a microcontroller?

a)

Small size

b)

Low cost

c)

High power consumption

d)

Integrated peripherals

17.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
18.

UNIT OF RESISTANCE IS

a)

OHM

b)

MHO

c)

FARAD

d)

HENRY

19.

The no of electrons present in 1C :

a)

0.625X 1018

b)

6.25 X 1018

c)

62.5 X 1018

d)

625 x 1018

20.

Can Arduino be Reprogrammed ?

a)

Yes :)

b)

No :(

c)

Maybe :o

d)

Maybe not -_-