Pipes and Cisterns Practice Test 15 is a challenging sectional-style set of 25 multiple-choice questions on pipes and cisterns, created by Xigma Academy for candidates preparing for SSC CGL and other staff-selection and government recruitment exams. It is test 15 in the Pipes and Cisterns series on TestMint. This is a paid test priced at ₹49; a small convenience fee applies at checkout.
What this test covers
- Pipes and Cisterns: 25 questions
Test details
| Questions | 25 |
|---|---|
| Duration | 40 minutes |
| Marks | 1 per question, 25 in total |
| Negative marking | 0.25 mark for each wrong answer |
| Difficulty | Mostly challenging |
| Access | ₹49 |
A sample question from this test
A tank holds 810 litres. An inlet pipe fills it at 60 litres per minute while an outlet pipe drains it at 15 litres per minute. If both are open, in how many minutes will the empty tank be full?
- 36
- 23
- 17
- 18
Answer: D. 18. Net filling rate = 60 − 15 = 45 litres per minute. Time = 810 ÷ 45 = 18 minutes.
How to approach this test
Treat filling pipes as positive rates and emptying pipes or leaks as negative rates, then divide the capacity by the net rate.
This set leans hard, with multi-step questions, so treat it as a stretch: attempt the questions you can see a method for first and return to the rest. At 25 questions in 40 minutes, you have about 96 seconds per question on average. After you submit, review every wrong or guessed answer using the explanations.
Keep practising
Continue with all SSC CGL mock tests, free mock tests, a guide to preparing this topic and how to review your mistakes.