Question 1

True or false: QR codes can contain vCard contact information for instant phone book saving.

Accepted Answer

True. QR codes can encode vCard data, letting users save a contact with one scan—common on business cards.

Question 2

True or false: QR codes cannot be scanned from a screen unless printed on paper.

Accepted Answer

False. Modern phones easily scan QR codes from screens, including computer monitors and other phones.

Question 3

True or false: The three large squares in a QR code are called finder patterns.

Accepted Answer

True. These corner squares help scanners detect the code's orientation and position, even when rotated.

Question 4

True or false: QR codes can store up to 7,089 numeric characters.

Accepted Answer

True. Version 40 QR codes can hold 7,089 digits, far more than the 20-30 characters many assume.

Question 5

True or false: QR codes were invented in Japan by Toyota to track car parts.

Accepted Answer

False. QR codes were invented in 1994 by Denso Wave, a Toyota subsidiary, to track automotive parts, not by Toyota directly.

Question 6

True or false: QR codes can still be scanned even if up to 30% of the code is damaged.

Accepted Answer

True. Reed-Solomon error correction allows QR codes to be read with up to 30% damage, depending on the correction level.

Question 7

True or false: The smallest QR code ever made was smaller than a grain of sand.

Accepted Answer

True. In 2020, researchers created a QR code just 2 micrometers wide, invisible to the naked eye.

Question 8

True or false: QR codes were originally designed to be read only with a special laser scanner.

Accepted Answer

False. Denso Wave designed QR codes for fast camera-based scanning, not lasers—lasers are for barcodes.

QR Code Trivia Questions