GATE CE 2025 Set 1 | Air Pollution Question 2 | Environmental Engineering

A hydrocarbon $\left(\mathrm{C}_n \mathrm{H}_m\right)$ is burnt in air $\left(\mathrm{O}_2+3.78 \mathrm{~N}_2\right)$. The stoichiometric fuel to air mass ratio for this process is

Note: Atomic Weight: $\mathrm{C}(12), \mathrm{H}(1)$

Effective Molecular Weight: Air(28.8)

Ignore any conversion of N 2 in air to the oxides of nitrogen $\left(\mathrm{NO}_{\mathrm{x}}\right)$

$0.0291 \frac{(4 n+m)}{(12 n+m)}$

$34.42 \frac{(12 n+m)}{(4 n+m)}$

$34.42 \frac{(4 n+m)}{(12 n+m)}$

$0.0291 \frac{(12 n+m)}{(4 n+m)}$

GATE CE 2023 Set 1

MCQ (Single Correct Answer)

-0.33

Which one of the following statements is TRUE for Greenhouse Gas (GHG) in the atmosphere?

GHG absorbs the incoming short wavelength solar radiation to the earth surface, and allows the long wavelength radiation coming from the earth surface to pass through

GHG allows the incoming long wavelength solar radiation to pass through to the earth surface, and absorbs the short wavelength radiation coming from the earth surface

GHG allows the incoming long wavelength solar radiation to pass through to the earth surface, and allows the short wavelength radiation coming from the earth surface to pass through

GHG allows the incoming short wavelength solar radiation to pass through to the earth surface, and absorbs the long wavelength radiation coming from the earth surface

Questions Asked from Marks 1

GATE CE 2025 Set 1 (1) GATE CE 2023 Set 1 (1)

GATE CE Subjects

Engineering Mechanics

Strength of Materials Or Solid Mechanics

Structural Analysis

Construction Material and Management

Reinforced Cement Concrete

Steel Structures

Geotechnical Engineering

Fluid Mechanics and Hydraulic Machines

Hydrology

Irrigation

Geomatics Engineering Or Surveying

Environmental Engineering

Transportation Engineering

Engineering Mathematics

General Aptitude