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WorksheetsNumber System Conversion Quiz
Total questions: 20
Worksheet time: 10mins
What is the base of the octal number system?
9
8
7
6
Which digits are used in the octal number system?
0-7
0-9
0-8
1-7
What is the first step in converting a decimal number to octal?
Add 8
Subtract 8
Divide by 8
Multiply by 8
In the conversion from decimal to octal, what does LSB stand for?
Left Significant Bit
Lowest Significant Bit
Least Significant Bit
Last Significant Bit
What is the octal equivalent of the decimal number 456?
740
710
720
730
How do you convert binary to octal?
Group binary digits into sets of five
Group binary digits into sets of three
Group binary digits into sets of two
Group binary digits into sets of four
What is the octal representation of the binary number 11100101?
447
765
567
345
What is the decimal equivalent of the octal number 345?
229
239
256
245
Which of the following is a correct method for converting octal to decimal?
Multiply each digit by 10
Multiply each digit by 8 raised to its position
Multiply each digit by 2
Add each digit
What is the binary equivalent of the octal number 475?
110111101
101111101
100111101
111111101
What is the first step in converting octal to binary?
Add the digits
Multiply by 2
Divide by 2
Look up each octal digit
What is the octal equivalent of the binary number 001100111?
147
137
157
167
In the conversion from octal to decimal, what does the power of 8 represent?
The position of the digit
The total number of digits
The value of the digit
The base of the number system
What is the binary equivalent of the octal number 218?
1000010
100110
101000
110010
What is the decimal equivalent of the octal number 1221?
689
657
690
678
Which of the following is NOT a step in converting decimal to octal?
Reversing the order
Dividing by 8
Writing the remainder
Adding the digits
What is the octal representation of the decimal number 78?
118
117
119
116
What is the binary equivalent of the octal number 377?
11111101
11111110
11111100
11111111
What is the last step in converting binary to octal?
Look up each group in a table
Add the binary digits
Multiply by 2
Reverse the order
What is the octal equivalent of the binary number 10101010?
252
262
272
282
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