Objective Questions on Micro Controllers and Interfacing

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 Micro Controllers and Interfacing

 

  M.Sc.(Semester-1)(CBCS) Examination March / April -2019

Electronic Science

MICROCONTROLLERS AND INTERFACING

1 A microcontroller at-least should consist of:

a)      RAM,ROM,I/O devices serial and parallel ports and timers

b)      CPU,RAM,I/O devices, serial and parallel ports and timers

c)       CPU,RAM,ROM,I/O devices and timer

2 Recent RTC IC come up with________.

a)      I2C support

b)      SPI support

c)       both a, b

d)      none of these

3 The IC DS 12887 is_____.

a)      current driver

b)      opto – coupler

c)       RTC

d)      None of these

4 ______ is electromechanical switch mostly used in industrial application.

a)      Relay

b)      opto – isolator

c)       LDR

d)      SCR

5 IC ULN2803 is mostly used for______.

a)      motor current driver

b)      opto – coupler

c)       RTC

d)      None of these

6 Which control signal/s is/are generated by timing and control unit of 8051 microcontroller in order to access the off-chip devices apart from the internal timing?

a)      ALE

b)      PSEN

c)       RD & WR

d)      All of the above

7 What is the default value of stack once after the system undergoes the reset condition?

a)      07H

b)      08H

c)       09H

d)      00H

   
8 The L293d is _______

a)      H bridge  DC motor driver

b)      H bridge stepper driver

c)       both a, b

d)      none of a, b

9 The  ILD74 is _______.

a)      Opto – coupler isolator

b)      motor driver

c)       both a,b

d)      none of these

10 ATA  is AT command in GSM module for______.

a)      Allow call

b)      Dial no.

c)       Declined call

d)      All of these

11 ATD is AT command in GSM module for ________.

a)      Allow call

b)      Dial no.

c)       Declined call

d)      all of these

12 GPS interfacing is possible due to _______ IC.

a)      RS232

b)      RS233

c)       both a, b

d)      none of these

13 SY-HS 220 is ______ sensor.

a)      Temperature

b)      Humidity

c)       both a, b

d)      none of these

   
  Data Collected By – J. Jayalakshmi
  Published On – 3rd Dec 2021
   

Posted

in

by

Tags:

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *