GATE ES branch:es PYQs & Answers — Page 16

Questions 151–160 of 390. Imported answers require independent review unless marked reviewed.

Topic practice 390 questionsPage 16 of 39

Which one of the following is NOT a greenhouse gas?

Your answerChoose one option.

CO₂

CH₄

H₂S

H₂O

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As per the United Nations Environmental Program (UNEP) guidelines 2004, the maximum size of microplastics is ______.

Your answerChoose one option.

10 mm

5 mm

10 μm

5 μm

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The costliest functional element in an urban centralized Municipal Solid Waste management infrastructure for a typical Indian Tier I city is ______.

Your answerChoose one option.

biological treatment

collection and transport

disposal in a sanitary landfill

thermal treatment

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The eigen values of the matrix

are

Your answerSelect all correct options. You can choose more than one.

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If X is a vector, and A and B are linear operators, then the correct mathematical relation(s) is/are

Your answerSelect all correct options. You can choose more than one.

(A+B)X = AX + BX

(λA)X = λ(AX)

(AB)X = A(BX)

(A+B)X = AᵀX+BᵀX

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In the context of fluid flow, which of the following statement(s) is/are correct?

Your answerSelect all correct options. You can choose more than one.

Streamline is a line, tangent to which at any point gives the direction of the velocity vector

Streakline is the actual path traversed by a given fluid particle in an unsteady flow

Steady flow and streamline are same for a steady flow

Pathline and streamline are same for a steady flow

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In a rectangular open channel, the flow is critical, and the flow depth is 2 m. Select the correct state(s)

Your answerSelect all correct options. You can choose more than one.

Specific energy for the flow is 3.0 m

Specific energy for the flow is 2.0 m

Froude number is 1.0

Froude number is 1.5

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With respect to particle settling in wastewater treatment systems; the correct statement(s) is/are

Your answerSelect all correct options. You can choose more than one.

Settling in grit chamber and primary sedimentation tanks are examples of Type-I settling

Settling in primary sedimentation tank and secondary sedimentation tank are examples of Type-II settling

Settling in grit chamber is an example of Type-I settling, whereas settling in primary sedimentation tank is an example of Type-II settling

Settling in secondary sedimentation tank is an example of Type-II settling, whereas settling in primary sedimentation tank is an example of Type-II settling

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The equipment that can be used to control particulate air pollution in an industrial unit is/are

Your answerSelect all correct options. You can choose more than one.

Electrostatic precipitator

Cyclone separator

Gravity settler

Incinerator

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Which is/are the secondary air pollutant(s)?

Your answerSelect all correct options. You can choose more than one.

O₃

HNO₃

CO₂

H₂SO₄

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GATE ES branch:es PYQs

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Question 25

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Question 28

Question 29

Question 30