Environmental Science and Engineering
GATE ES area:engineering-mathematics PYQs
Build your understanding with focused practice from past exam papers.
Questions 31–40 of 57. Imported answers require independent review unless marked reviewed.
Question 7
Open questionGAMCQ2 marksNeeds review
Which one of the following options represents the given graph?

Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 11
Open questionESMCQ1 markNeeds review
Given are two ordinary differential equations
P:
Q:
The correct choice is
Your answerChoose one option.
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Open questionESMCQ1 markNeeds review
P and Q are square matrices. Consider the following
X:
Y: Symmetric if
The correct choice is
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 13
Open questionESMCQ1 markNeeds review
Given are two infinite series
P:
Q:
The correct choice is
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 30
Open questionESNAT1 markNeeds review
A researcher compiled the following information about the performance of a kit in an outbreak
Infection state | Kit response
Disease (probability = 0.002) | Positive response (probability = 0.98)
No Disease | Positive response (probability = 0.03)
The probability of detecting an infection for a positive result through the kit would be _____________ (rounded off to three decimal places).
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Open questionESNAT1 markNeeds review
The value of
is __________ (rounded off to two decimal places).Log in to check the answer
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Open questionESMCQ2 marksNeeds review
W₁, W₂, W₃...W₉ represent the holding times of 9 water samples, which follow a normal distribution with mean = 8.33 and standard deviation = 4.472. M represents the sample mean value of holding times, which also has a normal distribution. Assuming Z has a standard normal distribution (mean = 0 and standard deviation = 1), select the correct statement which describes the expression for calculating the value of type 1 error where
null hypothesis (H₀): M > 6
alternate hypothesis (Hₐ): M ≤ 6
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 47
Open questionESNAT2 marksNeeds review
Second order ordinary differential equation
has values
and
at
. The value of y at x=1 is __________________ (rounded off to three decimal places).Log in to check the answer
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Open questionESNAT2 marksNeeds review
Consider two matrices
and
. If
then det R is __________________ (in integer).Log in to check the answer
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Open questionESNAT2 marksNeeds review
For the function
, the maximum value in the range
is __________________ (rounded off to two decimal places).Log in to check the answer
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