Objective Questions on Digital Electronics & VHDL

Solapur University M.Sc Electronic Science Sem I Paper March 2019

Solapur University M.Sc Electronic Science Previous Year Question Paper 2019  (March-April) on Digital Electronics & VHDL

 

M.Sc. (Semester-II) (CBCS) Examination March/ April – 2019

Electronic Science

DIGITAL ELECTRONICS AND VHDL

1 The following TTL sub – family is having maximum speed_________.

a)      Standard TTL

b)      Schottky clamped TTL

c)       High speed TTL

d)      Low power TTL

2 How many flip – flops are used in master slave flip – flop?

a)      3

b)      1

c)       2

d)      4

3 Open collector gates have ______switching times.

a)      Faster

b)      Slower

c)       Medium

d)      None of these

4 A PLA can be used________.

a)      To realize a sequential logic

b)      As a memory

c)       To realize a combinational logic

d)      None of these

5 The output of Moore machines is the function of________.

a)      Next State

b)      Present State

c)       Present State and Present Input

d)      Present state and next state

6 To seriously shift a byte of data into a shift register there must be________.

a)      One clock pulse

b)      Four clock pulse

c)       Eight clock pulse

d)      One clock pulse for each 1 in the data

7 State reduction gives _______.

a)      Reduction in number of flip – flops

b)      Number of flip – flops remain same

c)       Either a) or b)

d)      None  of the above

8 A divide by 20 ring counter requires a minimum of_______.

a)      Twenty flip – flops

b)      Eight fli8p –flop

c)       Five flip- flop

d)      None of these

9 In PLA _____.

a)      Both AND and OR matrix are programmable

b)      AND array is fixed and OR is programmable

c)       AND is programmable OR is fixed

d)      None of these

10 Flip – Flops can be used to make_______.

a)      Latches

b)      Bounces – elimination switches

c)       Registers

d)      All of the above

11 The figure of merit of a logic family is given by _______.

a)      Gain – bandwidth product

b)      Product of propogation delay time and power dissipation

c)       Product of fan – out

d)      None of these

12 A sequential circuit is one, whose output depends on _______.

a)      Present State

b)      Present Input

c)       Both A) and B)

d)      None of these

13 Which of the following is standardized as IEEE 1364?

a)      C

b)      C++

c)       FORTRAN

d)      Verilog

14 How many clock pulses will be required to completely load serially a 5- bit shift register?

a)      2

b)      3

c)       4

d)      5

Data Collected By – J. Jayalakshmi
Published On – 5th Dec 2021

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