Microprocessor MCQ – Part 1 [with 8085 MCQ & 8086 MCQ]
Last updated on April 30th, 2023 at 04:36 pm
This is part 1 of the Microprocessor MCQ (Multiple Choice Questions) on 8085 & 8086.
This page contains question number 1 to question number 8 [out of 40 questions of this set].
Follow the links given below to find the other 4 parts of this MCQ set containing 8085 MCQ and 8086 MCQ.
MCQ Part 2 | MCQ Part 3 | MCQ Part 4 | MCQ part 5
Microprocessor MCQ on 8085 & 8086 – part 1
Part 1 of the Microprocessor MCQ set with 8085 MCQ & 8086 MCQ has question numbers 1 to 8 of the set of 40 MCQs.
1] The content of “HL” register pair is 204Ah. What will be the content of “HL” register pair after executing the instruction DAD H.
a] 204Ah
b] 4098h
c] 4094h
d] 2096h
2] To initiate DMA data transfer the signal to be sent to the CPU is
a] READY
b] INTR
c] HOLD
d] None of these
3] READY signal in 8085 is useful when the CPU communicates with
a] slow peripheral device
b] A fast peripheral device
c] A DMA controller chip
d]A PPI chip
4] Which interrupt has the highest priority?
a] INTR
b] TRAP
c] RST6.5
d] RST7.5
5] In 8085 name the 16 bit registers?
a] Stack pointer
b] Program counter
c] A & B
d] None of these
6] In an 8085, after the execution of XRA A instruction
a] The carry flag is set
b] The accumulator contains FFH
c] The content of accumulator is shifted by one
d] The zero flag is set
7] The number of flags of the 8085 microprocessor is
a] 6
b] 5
c] 4
d] 3
8] Why 8085 processor is called an 8 bit processor?
a] Because 8085 processor has 8 bit ALU.
b] Because 8085 processor has 8 bit data bus.
c] A & B.
d] None of these.