Q. Which of the following characteristic are necessary for a sequential circuit?

1. It must have 6 gates
2. It must have feedback
3. Its output should depend on past value

Which of the above statements are correct?

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Q. 1011₂ x 101₂ = __________ ₁₀

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Q. A combination circuit is one in which the output depends on

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Q. 71₈ = __________ .

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Q. A parallel in-parallel out shift register can be used to introduce delay in digital circuits.

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Q. Binary multiplication can be done by repeated addition.

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Q. Assertion (A): In totem pole output the output impedance is low.

Reason (R): TTL gate with active pull up should not be used in wired AND connection.

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Q. The counter which require maximum number of FF for a given mod counter is

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Q. The content of which of the following determines the state of the CPU at the end of the execute cycle (when the interrupt is recognized)?

1. Program counter
2. Processor register
3. Certain status conditions

Select the correct answer using the codes given below :

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Q. In a gate output is Low if and only if all inputs are High. The gate is

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Q. With on-chip decoding, n address lines can access

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Q. A half adder can be used only for adding

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Q. In the 8421 BCD code, the decimal number 125, is written as

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Q. 110.11₂ x 110₂ = __________ ₁₀

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Q. Y = A + A̅ B is the same as

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Q. Assertion (A): Different symbols are used for different gates

Reason (R): IEEE symbols are the same as traditional symbols for gates.

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Q. If an analog voltage is expressed in binary using 4 bits, each successive binary count would represent

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Q. In a 4 input AND gate, the total number of High outputs for 16 input states are

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Q. Symmetrical square wave of time period 100 μs can be obtained from square wave of time period 10 μs by using

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Q. The initial state of a Mod-16 counter is 0110. After 37 clock pulses the state of counter will be

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