Digital electronics quiz - Page 2 of 5

00:20:00

Welcome to Digital Electronics - II quiz. This quiz consists of 20 multiple choice questions and you will have 20 minutes to answer.

Click "Next" to start the Quiz.

Which one of the following types of instructions will be used to copy from the source to destination location

Arthematic

Data transfer

Logical

Machine control instructions

9's complement of 008754

991245

908754

is 018753

991425

Min-term designation for Y=ABC'

If the number of inputs of a demultiplexer are 2^m then the number of select lines are

m*m

2^m

The expression f= A+A’B is equivalent to

f=AB

f=A’+B

f= A’B

f= A + B

The behavior of synchronous sequential circuit can be predicted by defining the signals at ______.

discrete instants of time

continuous instants of time

sampling instants of time

at any instant of time

How many flip-flops are required to make a MOD-32 binary counter?

The number 100000111110111 has what parity

even

cannot be determined

odd

none

How many number of latches are there

10.

Which operator usually uses before the operand

unary

binary

terinary

none

11.

In K-bits,you can represent the signed integers ranging

-(2^(N-1)) to 2^(n-1)-1

(2^(N-1)) to 2^(n-1)-1

-(2^(N+1)) to 2^(n-1)-1

-(2^(N-1)) to 2^(n-1)+1

12.

How many clock pulses will be required to completely load serially a 7bit register

13.

The number of redundancy bits for 12 bit message to convert it into hamming code

14.

Before an SOP implementation, the expression would require a total of how many gates?

15.

For a BCD decoder if the input is 1001 ,if (D0,D1,D2....D9) are outputs which will be high

D10

all are low

16.

By adding an OR gate to a simple programmable logic device (SPLD) the foundation for a(n) ________ is made possible

PAL

PLA

CPLD

EEPROM

17.

How can we represent (284)10 in BCD

0000 1000 0100

0010 1000 0100

0001 0101 0100

0100 1000 0010

18.

19.

A 12 bit ADC is used to convert analog voltage of 0 to 10 V into digital. The step output voltage is

2.44mv

24.4mv

244mv

12mv

20.

In Asynchronous sequential circuits the change in input signals can affect memory elements at any instant of time.

True

False