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Online Tests
Computer Science 7th Class Chapter 4 Online Test MCQs With Answers
Question # 1
How many symbols are used in the decimal number system.
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8
10
12
16
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Question # 2
Where do you add script blocks in Scratch.
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Stage area
Block categories
Script area
Sprite list
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Question # 3
The decimal numebr system is a numebr system that represents a number with a base of.....
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2
3
5
10
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Question # 4
Who reflned the binary number system in the 17th cenury.
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Isaac Newton
Albert Einstein
Galleo Calilei
Gottfried Leibniz
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Question # 5
What is the most significant bit in a binary number.
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The bit to the extreme left
The bit to the extreme right
The middle bit
It depends onthe number
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Question # 6
How many bits make up a byte of data.
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2
4
8
16
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Question # 7
What is Scratch.
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A programmming software
A video game
A mobile app
A social media platform
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Question # 8
What is the full form of ASCII.
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American Standard Code for International Interchange.
Americna Standard Code for Information Interchange
American Standard Code for Information Technology
Americna Standard Code for Internet Interchange.
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Question # 9
How are numbers represnted in computers.
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Using electronic switches
Using analog singals
Using mechanical switches
Using hydrulic signals
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Question # 10
----------- are represented in the computer using 8-bit numbers.
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Numbers
Letters
Images
Colors
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