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31. How many inputs signals can a gate have?

A. one
B. more than one
C. two only
D. both (a) and (b)
E. None of the above

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32. A combinational logic circuit which is used when it is desired to send data from two or more source through a single transmission line is known as

A. encoder
B. decoder
C. multiplexer
D. demultiplexer
E. None of the above

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33. Conversion of binary number 10010012 to hexadecimal is

A. 40₁₆
B. 39₁₆
C. 49₁₆
D. 42₁₆
E. None of the above

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34. Which logic family dissipates the minimum power?

A. DTL
B. TTL
C. ECL
D. CMOS
E. None of the above

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35. What logic function is obtained by adding an inverter to the inputs of an AND gate?

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

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