Digital Computer Electronics – Section 2

21. What logic function is produced by adding an inverter to the output of an AND gate?

A. NAND
B. NOR
C. XOR
D. OR
E. None of the above

Correct Answer:  A. NAND

22. Conversion of decimal number 2810 to it’s octal number equivalent is

A. 328
B. 408
C. 348
D. 368
E. None of the above

Correct Answer:  C. 348

23. Division of 1000112 by 1012 is

A. 1002
B. 11122
C. 10122
D. 101022
E. None of the above

Correct Answer:  B. 11122

24. The NOR gate is logically equivalent to an OR gate followed by an _____

A. AND
B. XAND
C. XOR
D. inverter
E. None of the above

Correct Answer:  D. inverter

25. The dynamic race hazard problem occurs in

A. combinational circuits only
B. sequential circuits only
C. both combinational and sequential circuits
D. None of the combinational and sequential circuits
E. None of the above

Correct Answer:  D. None of the combinational and sequential circuits

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