Civil Engineering
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CE 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 25–27 of 65. Imported answers require review unless explicitly marked reviewed.
Question 25
Open questionCEMSQ1 markNeeds review
Which of the following components is/are NOT removed in the secondary treatment of sewage?
Your answerSelect all correct options. You can choose more than one.
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Open questionCENAT1 markNeeds review
Bag I contains 4 white and 6 black balls. Bag II contains 4 white and 3 black balls. One ball is drawn at random from any one of the two bags and it is found to be a black ball. The probability that the black ball was drawn from Bag I is ______ (rounded off to two decimal places).
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Open questionCENAT1 markNeeds review
A matrix is given as:
By performing Cholesky decomposition,
of the lower triangular matrix is ______ (in integer).Log in to check the answer
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