Digital Circuits [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 131 - 134 of 271

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Question 131

Digital Circuits
ROM, SRAM, DRAM

Appeared in Year: 2007

Question

MCQ▾

The circuit diagram of a standard TTL NOT gate is shown in the figure. , the modes of operation of the transistors will be,

Choices

Choice (4)Response

a.

: Saturation; saturation; saturation; normal active

b.

: Normal active; cut-off; cut-off; saturation

c.

: Revere active; saturation; saturation; cut-off

d.

: Revere active; normal active; saturation; cut-off

Question 132

Digital Circuits
Logic Gates and Their Static CMOS Implementation

Appeared in Year: 2010

Question

MCQ▾

For the output F to be 1 in the logic circuit shown, the input combination should be

Choices

Choice (4)Response

a.

A = 0, B = 1, C = 0

b.

A = 1, B = 1, C = 0

c.

A = 1, B = 0, C = 0

d.

All a., b. and c. are correct

Question 133

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

Appeared in Year: 2017 (UGC-NET)

Question

MCQ▾

The addition of two binary variables A and B results into a SUM and a CARRY output. Consider the following expressions for SUM and CARRY outputs.

(1)

(2)

(3)

(4)

Which of the following expressions are correct? (November paper 2)

Choices

Choice (4)Response

a.

(1) and (4)

b.

(1) and (3)

c.

(2) and (3)

d.

(4) and (2)

Question 134

Digital Circuits
Boolean Algebra, Minimization of Functions

Appeared in Year: 2017 (UGC-NET)

Question

MCQ▾

The Boolean SOP expression obtained from the truth table is:

 Inputs Output A B C X

(November paper 2)

Choices

Choice (4)Response

a.

b.

c.

d.

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