Here I will give you Top- 100+ multiple choice question related to the 8085 microprocessor which will help in you college or university examinations, in your mid semester examination and in your upcoming AKTU examination .
The questions are related to the topics:-
Pin diagram and internal architecture of 8085 microprocessor, registers, ALU, Control & status, interrupt and machine cycle. Instruction sets. Addressing modes. Instruction formats Instruction Classification: data transfer, arithmetic operations, logical operations, branching operations, timing diagram.
So let's start with the questions:-
1. In 8085 microprocessor, how many interrupts are maskable.
a. Two
b. Three
c. Four
d. Five
Answer. c
2. Which stack is used in 8085 microprocessors?
a. FIFO
b. FILO
c. LIFO
d. LILO
Answer. c
3. In the instruction of the 8085 microprocessor, how many bytes are present?
a. One or two
b. One, two or three
c. One only
d. Two or three
Answer. b
4. Which one of the following addressing technique is not used in 8085 microprocessor?
a. Register
b. Immediate
c. Register indirect
d. Relative
Answer. d
5. Which one of the following register of 8085 microprocessor is not a part of the programming model?
a. Instruction register
b .Memory address register
c. Status register
d. Temporary data register
Answer. c
6. The program counter in 8085 microprocessor is a 16-bit register, because
a. It counts 16 bits at a time
b. There are 16 address times
c. It facilitates the users storing 16-bit data temporarily
d. It has to fetch two 8-bit data at a time.
Answer. b
7. A direct memory access (DMA) transfer replies
a .Direct transfer of data between memory and accumulator
b .Direct transfer of data between memory and I/O devices without the use of microprocessor
c .Transfer of data exclusively within microprocessor registers
d .A fast transfer of data between microprocessor and I/O devices
Answer. b
8. Handshaking mode of data transfer is
a. Synchronous data transfer
b. asynchronous data transfer
c. interrupt driven data transfer
d. level Mode of DMA data transfer
Answer. a
9. In a Microprocessor, the address of the new next instruction to be executed is stored in
a. Stack pointer
b. address latch
c. Program counter
d. General purpose register
Answer. c
10. The instruction RET executes with the following series of machine cycle
a. Fetch, read, write
b. Fetch, write, write
c. Fetch, read, read
d. Fetch, read
Answer. c
you can go through all the pages by clicking on the link given by page number and can check all the questions .It will absolutely help in your examinations . So read these questions carefully and if you are facing any problem then please comment your problem in comment box.
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