Radix Conversion and Logic Fundamentals

Convert the octal number 157 to decimal.

• 120

• 100

• 111

• 75

What is the binary equivalent of the octal number 27?

• 10110

• 11011

• 10001

• 10111

What is the BCD representation of the decimal number 45?

• 01011010

• 00101101

• 01000101

• 01000100

Convert the decimal number 9 to Excess-3 code.

• 1010

• 1111

• 1100

• 1001

What is the result of the Boolean expression A AND B if A=1 and B=0?

• A

• 1

• 0

• B

Which logic gate outputs true only when all inputs are true?

• OR gate

• XOR gate

• AND gate

• NAND gate

What is the Gray code for the decimal number 3?

• 00

• 01

• 11

• 10

Convert the octal number 75 to decimal.

• 57

• 75

• 63

• 61

What is the binary equivalent of the octal number 53?

• 101010

• 110101

• 100011

• 101011

What is the BCD representation of the decimal number 99?

• 10011000

• 11000011

• 10011001

• 10010101