Speed, Time & Work
Medium
1,410 attempts
Pipes and Cistern Online Test
Inlet, outlet and leak questions in a free timed test. Twenty exam-level problems on tank filling and emptying, each with a clear worked solution.
20
Questions
20
Marks
20 min
Duration
+1 / −0
Marking
General rules
Tap an option to answer. Your answer is saved instantly; use Clear to remove it.
Mark for Review to revisit a question. Answered & marked questions are evaluated.
Each correct answer gets +1. There is no negative marking, so attempt every question.
The timer starts when you press Start Test, and the test submits automatically when it reaches zero.
Your answers are saved automatically. If you refresh or close the page, your browser asks you to confirm first. Open this test again to resume where you left off, or restart it. The timer keeps running while you are away.
Use Exit at the top of the test to leave it. Exiting closes your attempt without a score; press Submit Test to get your result.
After you submit you see your score, accuracy and a full solution for every question.
Fair-play rules
Switching tabs, apps or windows counts as a warning, and the questions are hidden while you are away.
Opening this test in another tab counts as a warning.
Copy, paste, right-click and printing are disabled.
After 3 warnings the test is submitted automatically.
All warnings are recorded and shown in your result, along with any page reloads.
