1
GATE CE 2024 Set 2
MCQ (Single Correct Answer)
+1
-0.33

What is the CORRECT match between the air pollutants and treatment techniques given in the table?

Air pollutantsTreatment techniques
P - NO2i - Flaring
Q - SO2ii - Cyclonic separator
R - COiii - Lime scrubbing
S - Particlesiv - NH3 injection
A

P-i, Q-ii, R-iii, S-iv

B

P-ii, Q-i, R-iv, S-iii

C

P-ii, Q-iii, R-iv, S-i

D

P-iv, Q-iii, R-i, S-ii

2
GATE CE 2024 Set 2
MCQ (Single Correct Answer)
+1
-0.33

Which one of the following products is NOT obtained in anaerobic decomposition of glucose?

A

CO2

B

CH4

C

H2S

D

H2O

3
GATE CE 2024 Set 2
Numerical
+2
-0.833

A circular settling tank is to be designed for primary treatment of sewage at a flow rate of 10 million liters/day. Assume a detention period of 2.0 hours and surface loading rate of 40000 liters/m2/day. The height (in meters) of the water column in the tank is ______________ (rounded off to 2 decimal places).

Your input ____
4
GATE CE 2024 Set 2
Numerical
+2
-0.833

An organic waste is represented as C240O200H180N5S5.

(Atomic weights: S-32, H-1, C-12, O-16, N-14).

Assume complete conversion of S to SO2 while burning.

SO2 generated (in grams) per kg of this waste is __________ (rounded off to 1 decimal place).

Your input ____
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