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Digital-electronics Questions Set 69:

Quiz Mode

A ring counter with 5 flip-flops will have how many states?

5 states

10 states

32 states

infinite states

Solution:

Square-wave oscillators are commonly built using which of the following?

Inverter

OR gate

XOR gate

None of the above

Solution:

Which of the following is the Associative Property?

X·Y = Y·X

(X·Y)·Z = X·(Y·Z)

X·Y + X·Z = X+(Y·Z)

(X·Y)+Z = X·(Y·Z)

Solution:

The initial sequence of a 6-bit Ring counter is 110011. After how many clock cycles will the same signal pattern appear again?

Solution:

When a BCD input of 1000 is fed to a 7-segment display through a BCD to 7-segment decoder/driver, which segments will light up?

a, b, d

a, b, c

all

a, b, g, c, d

Solution:

To implement all Boolean functions of 5 variables using only one multiplexer and one inverter, what is the minimum size of the multiplexer needed?

16 × 1

8 × 1

32 × 1

4 × 1

Solution:

In a full adder circuit, what is the condition for the carry (C) to be 1?

S=1 when two or more inputs are 1

C=1 when two or more inputs are 1

C=1 when all the inputs are 1

S=1 when all inputs are 1

Solution:

Why is a demultiplexer called a data distributor?

The input will be distributed to one of the outputs

One of the inputs will be selected for the output

The output will be distributed to one of the inputs

Single input to Single Output

Solution:

Which problem is solved by implementing master-slave concept in JK-flip flop?

j = 1 and k = 1 condition

race around condition

memory mode condition

all the above

Solution:

Identify the correct order of steps to convert a Moore Machine to a Mealy Machine.

1. Copy all The Moore Machine Transition states into the Table. 2. Check the present states and their corresponding outputs in the Moore Machine table; if for a state Qi output is m,copy it into the output columns of the Mealy Machine state table wherever Qi appears in the next state. 3. Take a blank Mealy Machine transition table format.

1. Check the present states and their corresponding outputs in the Moore Machine table; if for a state Qi output is m,copy it into the output columns of the Mealy Machine state table wherever Qi appears in the next state. 2. Copy all The Moore Machine Transition states into the Table. 3. Take a blank Mealy Machine transition table format.

1. Take a blank Mealy Machine transition table format. 2. Copy all The Moore Machine Transition states into the Table. 3. Check the present states and their corresponding outputs in the Moore Machine table; if for a state Qi output is m,copy it into the output columns of the Mealy Machine state table wherever Qi appears in the next state.

1. Take a blank Mealy Machine transition table format. 2. Check the present states and their corresponding outputs in the Moore Machine table; if for a state Qi output is m,copy it into the output columns of the Mealy Machine state table wherever Qi appears in the next state. 3. Copy all The Moore Machine Transition states into the Table.

Digital-electronics Questions Set 69:

A ring counter with 5 flip-flops will have how many states?

Solution:

Square-wave oscillators are commonly built using which of the following?

Solution:

Which of the following is the Associative Property?

Solution:

The initial sequence of a 6-bit Ring counter is 110011. After how many clock cycles will the same signal pattern appear again?

Solution:

When a BCD input of 1000 is fed to a 7-segment display through a BCD to 7-segment decoder/driver, which segments will light up?

Solution:

To implement all Boolean functions of 5 variables using only one multiplexer and one inverter, what is the minimum size of the multiplexer needed?

Solution:

In a full adder circuit, what is the condition for the carry (C) to be 1?

Solution:

Why is a demultiplexer called a data distributor?

Solution:

Which problem is solved by implementing master-slave concept in JK-flip flop?

Solution:

Identify the correct order of steps to convert a Moore Machine to a Mealy Machine.

Solution:

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