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MCQ
BASIC ELECTRONICS
CONTROL SYSTEM ENGINEERING
DIGITAL ELECTRONICS
ELECTRICAL CIRCUIT ANALYSIS
ELECTRICAL ENERGY CONSERVATION AND AUDITING
ELECTRICAL ENGINEERING MATERIALS
ELECTRICAL MACHINES
ELECTRICAL WIRING
ELECTROMAGNETICS
MEASUREMENT & INSTRUMENTATION
MICROPROCESSOR AND MICROCONTROLLER INTERFACING
POWER ELECTRONICS & DRIVES
POWER SYSTEM
SIGNALS & SYSTEMS
UTILIZATION OF ELECTRICAL ENERGY
MICROPROCESSOR AND MICROCONTROLLER INTERFACING
Q1.
In a microcomputer, microprocessor is its
brain
heart
control unit
memory
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Solution
Q2.
What does a microprocessor understand after decoding opcode?
Perform ALU operation
Go to memory
Length of the instruction and number of operations
Go to the output device
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Solution
Q3.
In the microprocessor 8085, the address of the next instruction to be executed is stored in
Stack pointer
Address latch
Special function resistor
Program counter
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Solution
Q4.
In 8051, the register that can be used as a scratch pad is
B register
Accumulator
Data register
Accumulator and B register
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Solution
Q5.
Which of the following is true about stack pointer?
Stack pointer stores data permanently
Stack pointer is initialized after stack operation
Stack pointer is an 8-bit register
Stack pointer contains the address of the top of the stack memory
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Solution
Q6.
A fetch cycle is the_______________.
intermediate part of the instruction cycle
auxiliary part of the instruction cycle
last part of the instruction cycle
first part of the instruction cycle
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Solution
Q7.
The intel 8086 microprocessor is a ____ bit processor.
8
16
32
4
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Solution
Q8.
There are _______ general purpose registers in 8085 processor
5
6
7
8
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Solution
Q9.
Which of the following instructions will not set the 'zero' flag
MVI A, 00H
CPI 00H
XRA A
ANI 00H
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Solution
Q10.
Memory mapped I/O scheme for allocation of address to memories and I/O devices, is used for
Small systems
Large systems
Output device only
keyboard only
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Solution
1
2
3
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