The hexadecimal number (3E8)16 is equal to decimal number 1000 982 768 323 3 x 1

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Question
The hexadecimal number (3E8)₁₆ is equal to decimal number
Options
A. 1000
B. 982
C. 768
D. 323

Correct Answer

1000

Explanation

3 x 16² + 14 x 16¹ + 8 = 1000.

Digital Electronics problems

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4. In 2's complement representation the number 11100101 represents the decimal number
Options
A. +37
B. -31
C. +27
D. -27

6. A memory system of size 16 k bytes is to be designed using memory chips which have 12 address lines and 4 data lines each. The number of such chips required to design the memory system is
Options
A. 2
B. 4
C. 8
D. 18

7. 2's complement of binary number 0101 is
Options
A. 1011
B. 1111
C. 1101
D. 1110

8. In a ripple counter,
Options
A. whenever a flip flop sets to 1, the next higher FF toggles
B. whenever a flip flop sets to 0, the next higher FF remains unchanged
C. whenever a flip flop sets to 1, the next higher FF faces race condition
D. whenever a flip flop sets to 0, the next higher FF faces race condition

9. Which device has one input and many outputs?
Options
A. Multiplexer
B. Demultiplexer
C. Counter
D. Flip flop

10. The greatest negative number which can be stored is 8 bit computer using 2's complement arithmetic is
Options
A. - 256
B. - 128
C. - 255
D. - 127

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