GATE Civil Engineering (CE) 2018 Shift 1 Solved Paper

Question : 31 of 65

Marks: +1, -0

There are 20,000 vehicles operating in a city with an average annual travel of

12,000 {km}

per vehicle. The

{NO}_{x}

emission rate is

2.0 {g} \/ {km}

per vehicle. The total annual release of

{NO}_{x}

will be

Solution:

Total no. of kms. travelled by all the vehicles

=20000 × 12000 {km}

=24 × 10^{7} {km}

Total

{\NO}_{ {x}}

emission

=2 {g} {/} {km} × 24 × 10^{7} {km}

=48 × 10^{7} {g}

=48 × 10^{4} {kg}

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