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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 VEHICLES
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.
The number of interrupt lines in 8085 is__________.
2
4
5
3
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Solution
Q2.
A microprocessor consists of
ALU
Memories
I/O devices
all of the above
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Solution
Q3.
The first machine cycle of an instruction is always
Memory read cycle
Opcode fetch cycle
I/O read cycle
Memory write cycle
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Solution
Q4.
The microprocessor 8085 is an 8 bit microprocessor because it
can perform 8 bit arithmetic operations
Has 8 bit registers
Can perform 8 bit operation at a time
All of the above
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Solution
Q5.
Which of the following is a 3 byte instruction?
MVI
JMP
MOV
ADI
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Solution
Q6.
In 8051 architecture, the transmit buffer of serial data buffer is a
parallel-in serial-out register
serial-in parallel-out register
serial-in serial-out register
parallel-in parallel-out register
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Solution
Q7.
In order to enable TRAP interrupt, which of the following are needed?
EI only
SIM only
El and SIM both
None of these
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Solution
Q8.
Control in SCADA is ..............
Automatic control
Direct Control
Supervisory control
Online control
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Solution
Q9.
MVI K, 20F is an example of?
Immediate addressing mode
Register addressing mode
Direct addressing mode
Indirect addressing mode
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Solution
Q10.
Which of the following register is not used in opcode fetch operations?
Program counter
Memory address register
Memory data register
Flag register
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Solution
1
2
3
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