Digital Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 15 - 18 of 271

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Question 15

Digital Circuits
Boolean Algebra, Minimization of Functions

Appeared in Year: 1998

Question

MCQ▾

The K-map for a Boolean function is shown in figure. The number of essential prime implications for this function is,

K-MAP for the Boolean Function

Choices

Choice (4)Response

a.

6

b.

5

c.

4

d.

8

Question 16

Digital Circuits
Architecture

Appeared in Year: 2003

Question

MCQ▾

In an 8085 microprocessor, the instruction CMP B has been executed while the content of the accumulator is less than that of register B. As a result

Choices

Choice (4)Response

a.

Carry flag and Zero flag will be rest

b.

Carry flag and Zero flag will be set

c.

Carry flag will be set but Zero flag will be reset

d.

Carry flag will be rest but Zero flag will be set

Question 17

Digital Circuits
Arithmetic Circuits, Code Converters, Multiplexers, Decoders and PLAs

Appeared in Year: 1997

Question

MCQ▾

The decoding circuit shown in the given figure has been used to generate the active low chip select signal for a microprocessor peripheral. (The address lines are designated as for addresses)

The Decoding Circuit for the Chip Select

The peripheral will correspond to addresses in range,

Choices

Choice (4)Response

a.

b.

c.

d.

Question 18

Digital Circuits
Programming

Appeared in Year: 2010

Question

MCQ▾

For the 8085 assembly language program given below, the content of the accumulator after the execution of the program is

  1. 3000MVIA, 45H
  2. 3002MOVB, A
  3. 3003STC
  4. 3004CMC
  5. 3005RAR
  6. 3006XRAB

Choices

Choice (4)Response

a.

67H

b.

00H

c.

E7H

d.

45H

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