Environmental Science and Engineering
2022 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE ES 2022 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 58–60 of 65. Imported answers require review unless explicitly marked reviewed.
Question 58
Open questionESNAT2 marksNeeds review
A venturimeter along with a differential manometer was installed to measure flow in a water pipeline as shown in the following figure (not drawn to scale).

Taking specific weight of water as 9810 N/m
, the pressure difference (in Pa, rounded off to one decimal place) between point Q and P is __________.Log in to check the answer
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Open questionESNAT2 marksNeeds review
Two reservoirs having a difference of 10 m in their water surface elevations are connected by a pipeline (diameter = 10 cm, length = 50 m, and friction factor
). If the last 25 m length of the pipeline is replaced by a same material pipe of diameter 20 cm then neglecting minor losses the discharge (in %, rounded off to one decimal place) increase will be __________.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 60
Open questionESNAT2 marksNeeds review
The depth of flow (in m, rounded off to two decimal places) in a hydraulically efficient rectangular channel (n = 1/80) to carry a discharge of 64 m
/s at bed slope 0.01 is __________.Log in to check the answer
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