TACN

What are led lights made of?

• semiconductor

• superconductor

• conductor

• non-conductor

What does LED mean?

• Light Electric Diode

• Light Energy Diode

• Light Emitting Diode

• Light Enable Diode

When was the first 7 segment display invented? And who did it?

• 1983 by Thomas Shelby

• 1983 by Thomas Edison

• 1903 by Carl Kinsley

• 1903 by Horace Mann

What is the form that a 7-segment display can show?

• form of image

• A,C and D

• form of decimals

• form of letters

The main advantage of 7-segment display use LED over than 7-segment display use traditional bulbs is.....

• Cheapness

• Their big size

• Their Temperature

• Their small size

What is the name of DP segment?

• Digital Point

• Diode Pin

• Decimal Point

• Digits Point

Which led from a-g should light up to represent number 5 on 7 segment led ?

• a,b,d,e,g

• a,c,d,f,g

• a,b,c,d,f,g

• b,c,f,g

How many LEDs are there in 7 segment leds and how are they marked?

• 7-from "a" to "g"

• 7-from "1" to "7"

• 7-from "A" to "F"

• B&C

How many common pins does a 7-segment LED have?

• 4

• 2

• 5

• 3

What is the name of 2 common pins 7 segment led?

• CA&CB

• CA&CC

• CC&BC

• CC&AA