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Digital-electronics Questions Set 145:

Quiz Mode

What is the result of the expression A(A + B)?

(1 + AB)

Solution:

How many shift registers are used in a 4-bit serial adder?

Solution:

The binary number 101 in excess-3 code is written as

1011

1010

1001

1000

Solution:

The output of circuit will be 1 , when the values of A,B, C is ______

0,1,1

0,1,0

1,0,1

1,1,0

Solution:

Which of the following algebraic identities is true?

AB+C=AB+C

A+BC=AB+BC

A+BC=(B+C)

A+BC=(A+B)(A+C)

Solution:

In which type of multi-vibrator circuit, neither of the two states are stable?

Monostable

Astable

None of the above

Bistable

Solution:

What is the size of PROM required for implementing a dual 8-to-1 multiplexer with common selection inputs?

512K X 2

256K X 2

128K X 2

64K X 4

Solution:

What is the process of programming PROMs called?

Fusing, it is a reversible process

Burning, it is a reversible process

Fusing, it is an irreversible process

Modulating, it is an irreversible process

Solution:

A counter circuit is usually constructed of ____________

A number of latches connected in cascade form

A number of NAND gates connected in cascade form

A number of flip-flops connected in cascade

A number of NOR gates connected in cascade form

Digital-electronics Questions Set 145:

What is the result of the expression A(A + B)?

Solution:

How many shift registers are used in a 4-bit serial adder?

Solution:

The binary number 101 in excess-3 code is written as

Solution:

The output of circuit will be 1 , when the values of A,B, C is ______

Solution:

Which of the following algebraic identities is true?

Solution:

In which type of multi-vibrator circuit, neither of the two states are stable?

Solution:

What is the size of PROM required for implementing a dual 8-to-1 multiplexer with common selection inputs?

Solution:

What is the process of programming PROMs called?

Solution:

A counter circuit is usually constructed of ____________

Solution:

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