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. A tank can be filled by a tap in 40 minutes and by another tap in 60 minutes. Both taps are kept open for 20 minutes and then the first tap is shut off. After this, the tank will be completely filled in:

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