Question 1

The difference between half adder and full adder is

Accepted Answer

A) half adder has two inputs while full adder has four inputs 
B) half adder has one output while full adder has two outputs 
C) half adder has two inputs while full adder has three inputs 
D) all of the mentioned 
A) half adder has two inputs while full adder has four inputs 
B) half adder has one output while full adder has two outputs 
C) half adder has two inputs while full adder has three inputs 
D) all of the mentioned C

Question 2

The term synchronous means _

Accepted Answer

A) the output changes state only when any of the input is triggered 
B) the output changes state only when the clock input is triggered 
C) the output changes state only when the input is reversed 
D) the output changes state only when the input follows it 
A) the output changes state only when any of the input is triggered 
B) the output changes state only when the clock input is triggered 
C) the output changes state only when the input is reversed 
D) the output changes state only when the input follows it B

Question 3

How many types of triggering takes place in a flip flops?

Accepted Answer

A) 3 
B) 2 
C) 4 
D) 5 
A) 3 
B) 2 
C) 4 
D) 5 A

Question 4

The S-R, J-K and D inputs are called

Accepted Answer

A) asynchronous inputs 
B) synchronous inputs 
C) bidirectional inputs 
D) unidirectional inputs 
A) asynchronous inputs 
B) synchronous inputs 
C) bidirectional inputs 
D) unidirectional inputs

Question 5

A J-K flip-flop can be obtained from the clocked S-R flip-flop by augmenting

Accepted Answer

A) two and gates 
B) two nand gates 
C) two not gates 
D) two or gates 
A) two and gates 
B) two nand gates 
C) two not gates 
D) two or gates

Question 6

In which operation carry is obtained?

Accepted Answer

A) subtraction 
B) addition 
C) multiplication 
D) both addition and subtraction 
A) subtraction 
B) addition 
C) multiplication 
D) both addition and subtraction

Question 7

Let A and B is the input of a subtractor then the output will be

Accepted Answer

A) a xor b 
B) a and b 
C) a or b 
D) a exnor b 
A) a xor b 
B) a and b 
C) a or b 
D) a exnor b

Question 8

If A, B and C are the inputs of a full adder then the carry is given by

Accepted Answer

A) a and b or (a or b) and c 
B) a or b or (a and b) c 
C) (a and b) or (a and b)c 
D) a xor b xor (a xor b) and c 
A) a and b or (a or b) and c 
B) a or b or (a and b) c 
C) (a and b) or (a and b)c 
D) a xor b xor (a xor b) and c

Question 9

Let the input of a subtractor is A and B then what the output will be if A = B?

Accepted Answer

A) 0 
B) 1 
C) a 
D) b 
A) 0 
B) 1 
C) a 
D) b

Question 10

What does minuend and subtrahend denotes in a subtractor?

Accepted Answer

A) their corresponding bits of input 
B) its outputs 
C) its inputs 
D) borrow bits 
A) their corresponding bits of input 
B) its outputs 
C) its inputs 
D) borrow bits

Question 11

Half subtractor is used to perform subtraction of

Accepted Answer

A) 2 bits 
B) 3 bits 
C) 4 bits 
D) 5 bits 
A) 2 bits 
B) 3 bits 
C) 4 bits 
D) 5 bits

Question 12

What is the significance of the J and K terminals on the J-K flip-flop?

Accepted Answer

A) there is no known significance in their designations 
B) the j represents "jump," which is how the q output reacts whenever the clock goes high and the j input is also high 
C) the letters were chosen in honour of jack kilby, the inventory of the integrated circuit 
D) all of the other letters of the alphabet are already in use 
A) there is no known significance in their designations 
B) the j represents "jump," which is how the q output reacts whenever the clock goes high and the j input is also high 
C) the letters were chosen in honour of jack kilby, the inventory of the integrated circuit 
D) all of the other letters of the alphabet are already in use

Question 13

For subtracting 1 from 0, we use to take a from neighbouring bits.

Accepted Answer

A) carry 
B) borrow 
C) input 
D) output 
A) carry 
B) borrow 
C) input 
D) output

Question 14

How many flip-flops are in the 7475 IC?

Accepted Answer

A) 2 
B) 1 
C) 4 
D) 8 
A) 2 
B) 1 
C) 4 
D) 8

Question 15

Which of the following is the Universal Flip-flop?

Accepted Answer

A) s-r flip-flop 
B) j-k flip-flop 
C) master slave flip-flop 
D) d flip-flop 
A) s-r flip-flop 
B) j-k flip-flop 
C) master slave flip-flop 
D) d flip-flop

Question 16

If A and B are the inputs of a half adder, the carry is given by

Accepted Answer

A) a and b 
B) a or b 
C) a xor b 
D) a ex-nor b 
A) a and b 
B) a or b 
C) a xor b 
D) a ex-nor b

Question 17

Let A and B is the input of a subtractor then the borrow will be

Accepted Answer

A) a and b' 
B) a' and b 
C) a or b 
D) a and b 
A) a and b' 
B) a' and b 
C) a or b 
D) a and b

Question 18

How many outputs are required for the implementation of a subtractor?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 19

Total number of inputs in a half adder is

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 1 
A) 2 
B) 3 
C) 4 
D) 1

Question 20

In parts of the processor, adders are used to calculate

Accepted Answer

A) addresses 
B) table indices 
C) increment and decrement operators 
D) all of the mentioned 
A) addresses 
B) table indices 
C) increment and decrement operators 
D) all of the mentioned

The difference between half adder and full adder is

The term synchronous means _

How many types of triggering takes place in a flip flops?

The S-R, J-K and D inputs are called

A J-K flip-flop can be obtained from the clocked S-R flip-flop by augmenting

In which operation carry is obtained?

Let A and B is the input of a subtractor then the output will be

If A, B and C are the inputs of a full adder then the carry is given by

Let the input of a subtractor is A and B then what the output will be if A = B?

What does minuend and subtrahend denotes in a subtractor?

Half subtractor is used to perform subtraction of

What is the significance of the J and K terminals on the J-K flip-flop?

For subtracting 1 from 0, we use to take a from neighbouring bits.

How many flip-flops are in the 7475 IC?

Which of the following is the Universal Flip-flop?

If A and B are the inputs of a half adder, the carry is given by

Let A and B is the input of a subtractor then the borrow will be

How many outputs are required for the implementation of a subtractor?

Total number of inputs in a half adder is

In parts of the processor, adders are used to calculate

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Proms and Memory Addressing

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Exam 7: Flip-Flops, Adders, and Subtractors

The difference between half adder and full adder is

The term synchronous means _

How many types of triggering takes place in a flip flops?

The S-R, J-K and D inputs are called

A J-K flip-flop can be obtained from the clocked S-R flip-flop by augmenting

In which operation carry is obtained?

Let A and B is the input of a subtractor then the output will be

If A, B and C are the inputs of a full adder then the carry is given by

Let the input of a subtractor is A and B then what the output will be if A = B?

What does minuend and subtrahend denotes in a subtractor?

Half subtractor is used to perform subtraction of

What is the significance of the J and K terminals on the J-K flip-flop?

For subtracting 1 from 0, we use to take a from neighbouring bits.

How many flip-flops are in the 7475 IC?

Which of the following is the Universal Flip-flop?

If A and B are the inputs of a half adder, the carry is given by

Let A and B is the input of a subtractor then the borrow will be

How many outputs are required for the implementation of a subtractor?

Total number of inputs in a half adder is

In parts of the processor, adders are used to calculate

Digital Circuit Design and RTL Implementation

Understanding Diode-Transistor Logic DTL and Other Logic Families

CMOS, ECL, SCFL, Lvpecl, and TTL Logic Circuits

TTL Circuits, Karnaugh Maps, and Flip-Flops

Sequential Circuits and Logic Gat

Flip-Flops and Mosfets in IC Components

Registers, Shift Registers, and Adders

Exploring Concepts and Applications of Memory and Counters in Digital Electronics

Counters and Shift Registers

Proms and Memory Addressing

Binary Arithmetic and Multiplexers/Demultiplexers

Flip-Flops, Shift Operators, and Finite State Machines Fsm in VHDL

Shift Registers, Packages, and Combinational Circuits in VHDL

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