Q.1
Which of the following should a microcontroller at-least should consist of?
  • a) CPU, ROM, I/O ports, and timers
  • b) RAM, ROM, I/O ports, and timers
  • c) CPU, RAM, I/O ports, and timers
  • d) CPU, RAM, ROM, I/O ports, and timers
Q.2
Which of the following buses are present in a microcontroller for transferring data from one place to another?
  • a) data bus only
  • b) data bus, address bus
  • c) address bus only
  • d) address bus, data bus, control bus
Q.3
Which of the following file extension that is loaded in a microcontroller for executing any instruction?
  • a) .c
  • b) .txt
  • c) .hex
  • d) .doc
Q.4
Which of the following architecture is followed by general-purpose microprocessors?
  • a) Von Neumann architecture
  • b) Harvard architecture
  • c) None of the mentioned
  • d) All of the mentioned
Q.5
Which of the following microcontroller doesn’t match with its architecture below?
  • a) ARM7 – Von Neumann
  • b) Microchip PIC – Harvard
  • c) ARM9 – Harvard
  • d) MSP430 – Harvard
Q.6
When the microcontroller executes some arithmetic operations, then the flag bits of which of the following register are affected?
  • a) DPTR
  • b) PSW
  • c) PC
  • d) SP
Q.7
Which of the following steps have to be followed for interfacing a sensor to a microcontroller 8051?
  • a) interface sensor with ADC and ADC with 8051
  • b) interface sensor with the MAX232, send now to microcontroller, analyse the results
  • c) make the appropriate connections with the controller, ADC conversion, analyse the results
  • d) none of the mentioned
Q.8
Which of the following devices are specifically being used for converting serial to parallel and from parallel to serial respectively?
  • a) microcontroller
  • b) timers
  • c) counters
  • d) registers
Q.9
Which of the following pins of a microcontroller are directly connected with 8255?
  • a) WR
  • b) D0-D7
  • c) RD
  • d) All of the mentioned
Q.10
Why are solid-state relays advantageous over electromechanical relays?
  • a) they need less voltage to be energised
  • b) they need zero voltage circuit
  • c) they need less current to be energised
  • d) none of the mentioned
Q.11
The total space for the data memory available in the AVR-based microcontroller is?
  • a) FFFH
  • b) FH
  • c) FFFFH
  • d) FFFFFFFH
Q.12
Which of the following is correct about BRNE instruction in avr microcontrollers?
  • a) it is used to jump to the given mentioned label when the zero flag accounts to 0
  • b) it is used to check the zero flag
  • c) it is used to compare two registers
  • d) it is used to compare two values
Q.13
In AVR, which of the following registers are there for the I/O programming of ports?
  • a) PIN
  • b) DDR
  • c) PORT
  • d) All of the mentioned
Q.14
What will happen in that condition, if an interrupt occurs while the microcontroller is serving any other interrupt?
  • a) the interrupt that is more priority in the interrupt vector table will be served first
  • b) both the interrupts will be handled simultaneously
  • c) the interrupt having low priority in the interrupt vector table will be served first
  • d) the interrupt which is being done first will be served first
Q.15
Which of the following bits are used for setting the data frame size?
  • a) MPCM
  • b) DOR
  • c) U2X
  • d) UCSZ0
Q.16
What is the internal Vref of an Atmegaseries?
  • a) 3.3V
  • b) 2.56V
  • c) 5V
  • d) all of the mentioned
Q.17
Theis a ______ chip.
  • a) Digital to analog
  • b) Input/Output
  • c) Analog to Digital
  • d) None of the mentioned
Q.18
Which of the following pins of a microcontroller are directly connected with 8255?
  • a) WR
  • b) D0-D7
  • c) RD
  • d) All of the mentioned
Q.19
Doeshave handshaking capability?
  • a) depends on the conditions
  • b) cant be said
  • c) yes
  • d) no
Q.20
Why are ULNnormally used between the microcontrollers and the relays?
  • a) for increasing the voltage capability required by a relay
  • b) for switching purposes
  • c) for increasing the current capability required by a relay
  • d) all of the mentioned
0 h : 0 m : 1 s