Pipes and Cistern online test, online practice test, exam, quiz

Pipes and Cistern Online Test

The purpose of this online test is to help you evaluate your Pipes and Cistern knowledge yourself. These Multiple Choice Questions (MCQs) on Pipes and Cistern will prepare you for technical round of job interview, written test and many certification exams.

The test contains 20 questions and there is no time limit. You will get 1 point for each correct answer. You will get your online test score after finishing the complete test.
(Total 20 questions)        (Time spent 0:0)

1. Two pipes A and B and can fill a cistern in 15 minutes and 20 minutes respectively but a third pipe c can empty the full tank in 10 minutes. A and B are kept open for 5 minutes in the beginning and then c is also opened. In what time is the cistern emptied.

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