Chemical Engineering
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CH 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.
Question 49
Open questionCHMCQ2 marksNeeds review
Laboratory filtration is conducted at constant pressure drop of 200 kPa on a slurry of CaCO
in water at room temperature. The time taken to collect filtrate is shown in the table.Filtrate volume collected (in m ) | Time (in s) |
|---|---|
| 40 |
| 100 |
The filter area is 0.05 m
and viscosity of filtrate is
Pa s. Which one of the following is the filter medium resistance (in m
)?Your answerChoose one option.
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Open questionCHMCQ2 marksNeeds review
Consider three identical non-interacting first order processes in series, each having unit gain and a time constant of 2 min. Tuning of proportional controller using closed loop Ziegler-Nichols technique is considered. Which one of the following is the ultimate period of sustained cycling (in min per cycle)?
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 51
Open questionCHNAT2 marksNeeds review
A thermometer initially at a steady temperature of 30 °C is inserted in a water bath maintained at 90 °C. The initial rate of temperature rise of the thermometer is 2 °C s
. Assuming first order behavior, the thermometer reading (in °C) after one minute is ______ (rounded off to one decimal place).Log in to check the answer
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