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Electronics Engineering Objective Questions { Digital Circuit and Microprocessor }

204. The Boolean expression ABC+ -ABC+A13-C+ABZ + -A-13"-E + A B C will be equal to
C. + + A
D.C+ T3-A-
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205. The expression ABC (ABC +ATI C+ BC) when simplified for no assignment of binary values will take the value
C. A
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206. The complement of (A + B)(B + C) (A + C) will be
A. "X
B. X+
C. A B + B C + X T (d)A(B T +CT)
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207. The "bubble" or small circle, on the output of the NAND gate and NOR gate represents
B. Subtraction
C. Product
D. Complementation
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208. How many inputs can be supplied to a logic gate with a fan in factor of four?
A. Two
B. Three
C. Four
D. Eight
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209. Which circuit is used for a clock generator?
A. A free runnnig MV
B. JK flip-flop
C. Either of (a) and (b) above
D. Neither of (a) and (b) above
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210. How many flip-flop circuits are needed to divide by 16?
A. Two
B. Four
C. Eight
D. Sixteen
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