Mechanical Engineering
GATE ME format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 171–180 of 599. Imported answers require independent review unless marked reviewed.
Question 9
Open questionGAMCQ2 marksNeeds review
Given below are three conclusions drawn based on the following three statements.
Statement 1: All teachers are professors.
Statement 2: No professor is a male.
Statement 3: Some males are engineers.
Conclusion I: No engineer is a professor.
Conclusion II: Some engineers are professors.
Conclusion III: No male is a teacher.
Which one of the following options can be logically inferred?
Your answerChoose one option.
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Open questionGAMCQ2 marksNeeds review
Four cities P, Q, R and S are connected through one-way routes as shown in the figure. The travel time between any two connected cities is one hour. The boxes beside each city name describe the starting time of first train of the day and their frequency of operation. For example, from city P, the first trains of the day start at 8 AM with a frequency of 90 minutes to each of R and S. A person does not spend additional time at any city other than the waiting time for the next connecting train.
If the person starts from R at 7 AM and is required to visit S and return to R, what is the minimum time required?

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Open questionGAMCQ2 marksNeeds review
In a 12-hour clock that runs correctly, how many times do the second, minute, and hour hands of the clock coincide, in a 12-hour duration from 3 PM in a day to 3 AM the next day?
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Equal sized circular regions are shaded in a square sheet of paper of 1 cm side length. Two cases, case M and case N, are considered as shown in the figures below. In the case M, four circles are shaded in the square sheet and in the case N, nine circles are shaded in the square sheet as shown.
What is the ratio of the areas of unshaded regions of case M to that of case N?

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Open questionMEMCQ1 markNeeds review
The limit
has a finite value for a real
. The value of
and the corresponding limit
areYour answerChoose one option.
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Open questionMEMCQ1 markNeeds review
is a periodic square wave function as shown. It takes only two values, 4 and 0, and stays at each of these values for 1 second before change. What is the constant term in the Fourier series expansion of
? 
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Solution of
in a square domain
with boundary conditions:
isYour answerChoose one option.
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Consider a cube of unit edge length and sides parallel to co-ordinate axes, with its centroid at the point
. The surface integral
of a vector field
over the entire surface
of the cube is _____.Your answerChoose one option.
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Open questionMEMCQ1 markNeeds review
Given a function
in three-dimensional Cartesian space, the value of the surface integral
where
is the surface of a sphere of unit radius and
is the outward unit normal vector on
, isYour answerChoose one option.
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Open questionMEMCQ1 markNeeds review
Consider the definite integral
Let
be the exact value of the integral. If the same integral is estimated using Simpson’s rule with 10 equal subintervals, the value is
. The percentage error is defined as
. The value of
isYour answerChoose one option.
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