GATE ES format:mcq PYQs & Answers — Page 4

Questions 31–40 of 200. Imported answers require independent review unless marked reviewed.

Which ONE of the following options CORRECTLY matches the Criteria Air Pollutants with measurement methods used in Continuous Ambient Air Quality Monitoring Stations (CAAQMS) operated by Central Pollution Control Board (CPCB) given in the table?

Criteria Air Pollutants	Measurement Methods
(P) Sulphur Dioxide (SO , in μg/m )	(i) Chemiluminescence
(Q) Nitrogen Dioxide (NO , in μg/m )	(ii) Non Disperse Infra Red (NDIR) spectroscopy
(R) Particulate Matter (PM , in μg/m )	(iii) Ultraviolet fluorescence
(S) Carbon Monoxide (CO, in mg/m )	(iv) Beta attenuation

Your answerChoose one option.

(P) - (i); (Q) - (ii); (R) - (iii); (S) - (iv)

(P) - (iv); (Q) - (iii); (R) - (ii); (S) - (i)

(P) - (iii); (Q) - (i); (R) - (iv); (S) - (ii)

(P) - (ii); (Q) - (iii); (R) - (i); (S) - (iv)

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Which ONE of the following options CORRECTLY matches the atmospheric stability conditions with plume conditions/behaviors given in the table?

Atmospheric Stability Conditions	Plume Conditions/Behaviors
(P) Strong instability	(i) Fanning plume
(Q) Neutral stability	(ii) Fumigation
(R) Surface inversion	(iii) Coning plume
(S) Aloft inversion	(iv) Looping plume

Your answerChoose one option.

(P) - (i); (Q) - (ii); (R) - (iii); (S) - (iv)

(P) - (iv); (Q) - (iii); (R) - (i); (S) - (ii)

(P) - (iii); (Q) - (iv); (R) - (ii); (S) - (i)

(P) - (ii); (Q) - (i); (R) - (iv); (S) - (iii)

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The analysis of a water sample is shown in the table. The hardness of the water sample is ______ mg/L as CaCO

Atomic weight (g/mol): Ca = 40; Mg = 24; Na = 23; Cl = 35.5; S = 32; O = 16; N = 14

Species	Concentration (mg/L)
Na	30
Ca	10
Mg	15
Cl	30
SO	60
NO	5

Your answerChoose one option.

87.5

62.5

25.5

47.5

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Courage : Bravery :: Yearning : __________

Select the most appropriate option to complete the analogy.

Your answerChoose one option.

Longing

Yelling

Yawning

Glaring

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We __________ tennis in the lawn when it suddenly started to rain.

Select the most appropriate option to complete the above sentence.

Your answerChoose one option.

have been playing

had been playing

would have been playing

could be playing

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A 4 × 4 digital image has pixel intensities (

) as shown in the figure. The number of pixels with

is:

Diagram for Environmental Science and Engineering question 3

Your answerChoose one option.

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In the given figure, the numbers associated with the rectangle, triangle, and ellipse are 1, 2, and 3, respectively. Which one among the given options is the most appropriate combination of P, Q, and R?

Diagram for Environmental Science and Engineering question 4

Your answerChoose one option.

P = 6; Q = 5; R = 3

P = 5; Q = 6; R = 3

P = 3; Q = 6; R = 6

P = 5; Q = 3; R = 6

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A rectangle has a length L and a width W, where L > W. If the width, W, is increased by 10%, which one of the following statements is correct for all values of L and W?

Your answerChoose one option.

Perimeter increases by 10%.

Length of the diagonals increases by 10%.

Area increases by 10%.

The rectangle becomes a square.

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Column-I has statements made by Shantha; and Column-II has responses given by Kanishk.

Column-I: P. This house is in a mess. Q. I am not happy with the marks given to me. R. Politics is a subject I avoid talking about. S. I don’t know what this word means.

Column-II:

Alright, I won’t bring it up during our conversations.

Well, you can easily look it up.

No problem, let me clear it up for you.

Don’t worry, I will take it up with your teacher.

Identify the option that has the correct match between Column-I and Column-II.

Your answerChoose one option.

P – 2; Q – 3; R – 1; S – 4

P – 3; Q – 4; R – 1; S – 2

P – 4; Q – 1; R – 2; S – 3

P – 1; Q – 2; R – 4; S – 3

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Weight of a person can be expressed as a function of their age. The function usually varies from person to person. Suppose this function is identical for two brothers, and it monotonically increases till the age of 50 years and then it monotonically decreases. Let

and

(in years) denote the ages of the brothers and

Which one of the following statements is correct about their age on the day when they attain the same weight?

Your answerChoose one option.

Either

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GATE ES format:mcq PYQs

Question 39

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Question 41

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