1

GATE ECE 2018

MCQ (Single Correct Answer)

+2

-0.67

A cab was involved in a hit and run accident at night. You are given the following data about the cabs in
the city and the accident.

(i) 85% of cabs in the city are green and the remaining cabs are blue.

(ii) A witness identified the cab involved in the accident as blue.

(iii) It is known that a witness can correctly identify the cab colour only 80% of the time.

Which of the following options is closest to the probability that the accident was caused by a blue cab?

(i) 85% of cabs in the city are green and the remaining cabs are blue.

(ii) A witness identified the cab involved in the accident as blue.

(iii) It is known that a witness can correctly identify the cab colour only 80% of the time.

Which of the following options is closest to the probability that the accident was caused by a blue cab?

2

GATE ECE 2017 Set 1

MCQ (Single Correct Answer)

+2

-0.67

S, T, U, V, W, X, Y and Z are seated around a circular table. T's neighbors are Y and V. Z is seated third
to the left of T and second to the right of S. U's neighbors are S and Y: and T and W are not seated opposite
each other. Who is third to the left of V?

3

GATE ECE 2017 Set 1

MCQ (Single Correct Answer)

+2

-0.67

There are 3 Indians and 3 Chinese in a group of 6 people. How many subgroups of this group can we
choose so that every subgroup has at least one Indian?

4

GATE ECE 2017 Set 1

MCQ (Single Correct Answer)

+2

-0.67

A contour line joins locations having the same height above the mean sea level. The following is a contour
plot of a geographical region. Contour lines are shown at 25 m intervals in this plot.

The path from P to Q is best described by

The path from P to Q is best described by

Questions Asked from Numerical Ability (Marks 2)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE Subjects

Signals and Systems

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

Network Theory

Control Systems

Digital Circuits

General Aptitude

Electronic Devices and VLSI

Analog Circuits

Engineering Mathematics

Microprocessors

Communications

Electromagnetics