Questions 271 to 280
271.
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According to the Demorgan’s Theorem, what is the value of F’, where F=P’Q+RS.
(a) (P+Q’)(R’+S’) (b) (P’+Q’)(R’+S’) (c) (P+Q’)(R+S)
(d) (P+Q)(R’+S’) (e) (P’+Q’)(R’+S).
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_______________ is a input device, which involves to demonstrate speech recognition.
(a) Speakers (b) Scanner (c) Light pen
(d) Microphone (e) CD-Player.
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Identify the circuit which gives one output from n number of inputs.
(a) Demultiplexer (b) Multiplexer (c) Decoder
(d) Encoder (e) Sequential Circuit.
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Subtract the given unsigned decimal numbers by taking the 10's complement of the subtrahend. 6543-4444.
(a) 2098 (b) 2099 (c) 2096 (d) 2097 (e) 2095.
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From the given k-map, the simplified equation for F is __________.
(a) ac+ab’ (b) a’c+ab (c) a’c+ab’ (d) a’c’+ab’ (e) a’c+a’b’.
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Simplify AB+AB’.
(a) A (b) B (c) (A’+B’) (d) (A+B) (e) AB.
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The octal number of 011001 is _____________.
(a) 32 (b) 31 (c) 34 (d) 33 (e) 35.
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The 10’s complement of 9999 is ______________.
(a) 9999 (b) 0000 (c) 1111 (d) 0001 (e) 1000.
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Which of the following depicts the figure below
(a) Register reference (b) I/O instruction
(c) Memory reference (d) A and C (e) A or C.
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Identify the formula for XNOR gate.
(a) A’B+B’A (b) A’B’+AB (c) A+B (d) A.B (e) A’B.
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Answers
271.
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Answer : (a)
Reason: According to the Demorgan’s Theorem , the value of F’, where F=P’Q+RS is (P+Q’)(R’+S’).
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Answer : (d)
Reason: Microphone is a input device , which involves to demonstrate speech recognition.
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Answer : (b)
Reason: The circuit which gives one output from n number of inputs is Multiplexer.
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Answer : (b)
Reason: The subtraction of given unsigned decimal numbers by taking the 10's complement of the subtrahend , 6543-4444 is 2099.
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Answer : (c)
Reason:
From the given k-map, the simplified equation for F is a’c+ab’
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Answer : (a)
Reason: AB + AB’ = A(B + B’) = A.
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Answer : (b)
Reason: The octal number of 011001 is 31.
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Answer : (d)
Reason: The 10’s complement of 9999 is 0001.
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Answer : (b)
Reason: The figure depicts Input output instruction as the last four bits are 1’s.
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Answer : (b)
Reason: The formula for XNOR gate is A’B’+AB.
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