GATE CE 2017 Set 2 — Question 47
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+2 / -0MediumPrecipitationHydrology & PrecipitationWater Resources EngineeringRainfall Measurement
Water Resources Engineering → Hydrology & Precipitation → Precipitation
Last updated
Question
A catchment is idealized as a square. It has five rain gauges, one at each corner and one at the center, as shown in the figure.
During a month, the precipitation at these gauges is measured as , , , and . The average precipitation (in mm, up to one decimal place) over the catchment during this month by using the Thiessen polygon method is _______________
Correct answer
286.9 to 287.9
Solution
In a square catchment with gauges at four corners and one at the center, the Thiessen polygon for the center gauge () covers exactly half of the total area (). The remaining area is divided equally among the four corner gauges ().Average precipitation using Thiessen polygon method:
Rounding to one decimal place, we get .
Rounding to one decimal place, we get .
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 Hydrology & Precipitation
2026 Set 1 Q16Two reservoirs having different water levels are connected by two long parallel pipelines of same…2026 Set 1 Q17An irrigation canal is to be designed to deliver 10 cumec to meet the peak demand of 7500 hectare…2026 Set 2 Q19The Culturable Command Area (CCA) for a canal is 10000 hectares. The base period for a crop in the…2026 Set 2 Q20Following statements are made with respect to the mass curve of rainfall: (I) Slope at a point on…2026 Set 1 Q23Gradually Varied Flow (GVF) profiles in open channels given in Column 1 are to be matched with the…