1

GATE ECE 2015 Set 3

MCQ (Single Correct Answer)

+1

-0.3

In the circuit shown, diodes $${D_1}$$ ,$${D_2}$$ and $${D_3}$$ are ideal, and the inputs $${E_1}$$ , $${E_2}$$ and $${E_3}$$ are “0 V” for
logic ‘0’ and “10 V” for logic ‘1’. What logic gate does the circuit represent?

2

GATE ECE 2014 Set 4

MCQ (Single Correct Answer)

+1

-0.3

In the circuit shown in the figure, if C = 0, the expression for Y is

3

GATE ECE 2013

MCQ (Single Correct Answer)

+1

-0.3

A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the
first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches
irrespective of the state of the other switch. The logic of switching of the bulb resembles.

4

GATE ECE 2011

MCQ (Single Correct Answer)

+1

-0.3

The output Y in the circuit below is always ‘1’ when

Questions Asked from Logic Gates (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE 2022 (1)
GATE ECE 2016 Set 3 (1)
GATE ECE 2016 Set 1 (1)
GATE ECE 2015 Set 2 (1)
GATE ECE 2015 Set 3 (1)
GATE ECE 2014 Set 4 (1)
GATE ECE 2013 (1)
GATE ECE 2011 (1)
GATE ECE 2010 (2)
GATE ECE 2002 (1)
GATE ECE 2001 (1)
GATE ECE 2000 (1)
GATE ECE 1997 (1)
GATE ECE 1995 (1)
GATE ECE 1994 (1)
GATE ECE 1993 (2)
GATE ECE 1989 (1)
GATE ECE 1988 (5)

GATE ECE Subjects

Signals and Systems

Representation of Continuous Time Signal Fourier Series
Discrete Time Signal Fourier Series Fourier Transform
Discrete Time Signal Z Transform
Continuous Time Linear Invariant System
Transmission of Signal Through Continuous Time LTI Systems
Discrete Time Linear Time Invariant Systems
Sampling
Continuous Time Signal Laplace Transform
Discrete Fourier Transform and Fast Fourier Transform
Transmission of Signal Through Discrete Time Lti Systems
Miscellaneous
Fourier Transform

Network Theory

Control Systems

Digital Circuits

General Aptitude

Electronic Devices and VLSI

Analog Circuits

Engineering Mathematics

Microprocessors

Communications

Electromagnetics