GATE CE 2023 Set 2 — Question 34
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+1 / -0MediumAir PollutionEnvironmental Engineering
Environmental Engineering → Air Pollution
Last updated
Question
For the elevation and temperature data given in the table, the existing lapse rate in the environment is _________ (round off to two decimal places).
| Elevation from ground level (m) | Temperature () |
|---|---|
| 5 | 14.2 |
| 325 | 16.9 |
Correct answer
0.84 to 0.85
Solution
The lapse rate is the rate at which temperature changes with altitude in the atmosphere. It is calculated as:From the given table:
Change in elevation () = Lapse rate per meter = To find the lapse rate per :Rounding off to two decimal places, we get . The range provided in the official answer key is to .
- At elevation , temperature
- At elevation , temperature
Change in elevation () = Lapse rate per meter = To find the lapse rate per :Rounding off to two decimal places, we get . The range provided in the official answer key is to .
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE CE question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Air Pollution
2026 Set 1 Q21A rapid sand filter bed of depth m has % porosity during service cycle. It is…2026 Set 1 Q22The settling velocity of inorganic particles in the sedimentation tank of a water treatment plant…2026 Set 1 Q25Which of the following components is/are NOT removed in the secondary treatment of sewage?2026 Set 2 Q27Column I presents common air pollutants, and column II presents treatment technologies commonly…2026 Set 2 Q28One-third of the solid matter in a sludge containing water is composed of fixed mineral…