Self-driving cars and sensors quiz

Question 1

What is a self-driving car (also called an autonomous vehicle)?

Accepted Answer

A vehicle that senses its surroundings and drives itself with little or no human help

Answer

A car that only works on race tracks

Answer

A normal car painted with special colors

Answer

A toy car controlled by a TV remote

Question 2

Why do self-driving cars need sensors?

Accepted Answer

To give the computer information about the surroundings so it can drive safely

Answer

To make the car look modern

Answer

To play music inside the car

Answer

To charge the car's battery

Question 3

What does a camera sensor help a self-driving car do?

Accepted Answer

See colors and shapes like traffic lights, signs, and lane lines

Answer

Measure the car's fuel level

Answer

Make the engine run faster

Answer

Control the air conditioning

Question 4

What is LiDAR and how does it work?

Accepted Answer

A sensor that uses laser pulses to measure distance and build a 3D map

Answer

A type of car radio

Answer

A device that prints maps on paper

Answer

A battery used in electric cars

Question 5

How does radar help a self-driving car?

Accepted Answer

It uses radio waves to detect distance and speed, even in fog or rain

Answer

It cleans the windshield

Answer

It only works on sunny days

Answer

It plays warning sounds for the driver

Question 6

What is an ultrasonic sensor used for in a car?

Accepted Answer

Measuring short distances for tasks like parking using sound echoes

Answer

Detecting faraway airplanes

Answer

Reading road signs

Answer

Measuring engine temperature

Question 7

Why do self-driving cars combine many different sensors instead of using just one?

Accepted Answer

Because combining sensors covers each one's weaknesses and gives a fuller picture

Answer

Because one sensor is too expensive

Answer

Because the law requires exactly ten sensors

Answer

Because more sensors make the car look cool

Question 8

What is 'sensor fusion'?

Accepted Answer

Combining data from many sensors into one clear picture of the surroundings

Answer

Melting sensors together with heat

Answer

Turning off all but one sensor

Answer

Sending sensor data to other cars

Question 9

How do self-driving cars learn to recognize objects like pedestrians and cars?

Accepted Answer

By being shown many labeled examples so it learns patterns

Answer

By guessing randomly

Answer

By asking the driver every time

Answer

By reading the car's manual

Question 10

What is 'training data' for a self-driving car's AI?

Accepted Answer

A collection of labeled examples the AI studies to learn

Answer

The fuel the car uses

Answer

The car's speed records

Answer

The driver's personal information

Question 11

What are the levels of driving automation (Levels 0 to 5)?

Accepted Answer

A scale from 0 (no automation) to 5 (full automation)

Answer

Speed limits for different roads

Answer

The number of seats in a car

Answer

Types of car fuel

Question 12

At Level 5 automation, what is special about the car?

Accepted Answer

It can drive itself everywhere with no human help needed

Answer

It still needs a human for highways

Answer

It only works when parked

Answer

It can fly

Question 13

Why is it important for a self-driving car to detect a red traffic light correctly?

Accepted Answer

So it knows to stop and avoid crashes at intersections

Answer

So the car can honk

Answer

So it can save fuel

Answer

So passengers can take photos

Question 14

What is a 'point cloud' produced by LiDAR?

Accepted Answer

A 3D set of dots showing where laser beams bounced off objects

Answer

A weather forecast

Answer

A type of cloud storage online

Answer

A picture taken by a camera

Question 15

Why might a self-driving car struggle in heavy snow or rain?

Accepted Answer

Because snow and rain can block or confuse the sensors

Answer

Because the engine freezes instantly

Answer

Because the radio stops working

Answer

Because passengers get cold

Question 16

What is an 'edge case' in self-driving cars, and why does it matter?

Accepted Answer

A rare, unusual situation the car rarely sees and may handle poorly

Answer

A scratch on the car's edge

Answer

The edge of the road

Answer

A type of sensor

Question 17

How does GPS help a self-driving car?

Accepted Answer

It uses satellite signals to find the car's location for navigation

Answer

It controls the brakes directly

Answer

It reads traffic signs

Answer

It cleans the sensors

Question 18

What does 'localization' mean for a self-driving car?

Accepted Answer

The car figuring out exactly where it is on the road

Answer

Locking the car doors

Answer

Choosing the local radio station

Answer

Finding nearby gas stations only

Question 19

Why are 'high-definition maps' (HD maps) useful for self-driving cars?

Accepted Answer

They store detailed road info to help the car know where it is and what is ahead

Answer

They show only restaurants

Answer

They are paper maps in the glovebox

Answer

They display movies for passengers

Question 20

What is a neural network's role in recognizing objects from camera images?

Accepted Answer

A pattern-finding program that learns to recognize objects in images

Answer

It stores fuel data

Answer

A type of car engine

Answer

A radio antenna

Question 21

What is 'object detection' in a self-driving car?

Accepted Answer

Finding and labeling things like cars and pedestrians in sensor data

Answer

Detecting whether the car needs an oil change

Answer

Counting passengers

Answer

Detecting the radio signal

Question 22

Why must a self-driving car predict what other road users will do next?

Accepted Answer

To anticipate others' movements and avoid dangerous situations

Answer

To win races against other cars

Answer

To choose a faster radio station

Answer

To save battery power

Question 23

What is 'path planning' for a self-driving car?

Accepted Answer

Deciding the route and movements to reach the destination safely

Answer

Planning the car's paint color

Answer

Planning when to wash the car

Answer

Planning music playlists

Question 24

How is testing self-driving cars in a computer simulation helpful?

Accepted Answer

It lets the AI safely practice many situations, including dangerous ones

Answer

It makes the car heavier

Answer

It replaces the need for any sensors

Answer

It is only used for video games

Question 25

What is one safety benefit people hope self-driving cars will provide?

Accepted Answer

They could reduce crashes caused by human mistakes like distraction

Answer

They make roads narrower

Answer

They remove the need for traffic lights instantly

Answer

They guarantee zero pollution

Question 26

What ethical question, like the 'trolley problem', do self-driving cars raise?

Accepted Answer

How the car should choose between two bad outcomes in an unavoidable crash

Answer

Which color the car should be

Answer

How loud the horn should be

Answer

Where to park overnight

Question 27

Who might be responsible if a self-driving car causes an accident?

Accepted Answer

It is a debated question involving makers, developers, owners, or supervisors

Answer

Always only the pedestrian

Answer

Never anyone at all

Answer

Only the car's passengers

Question 28

Why is data privacy a concern with self-driving cars?

Accepted Answer

They collect location and video data that could reveal private information

Answer

The cars are too quiet

Answer

They use too much fuel

Answer

They cannot connect to the internet

Question 29

What is a 'false negative' in object detection, and why is it dangerous?

Accepted Answer

Failing to detect something real, like missing a pedestrian

Answer

Detecting an object that is not really there

Answer

Detecting the radio station wrong

Answer

A negative review of the car

Question 30

How can a simple Python idea show distance from a sensor using time?

Accepted Answer

distance = speed multiplied by time, then divided by 2 for the round trip

Answer

distance = speed plus time

Answer

distance = time divided by speed only

Answer

distance equals the number of sensors

Test yourself