CET Pipes and Cisterns Questions with Solutions – Page 3
All 26 Pipes and Cisterns questions from MBA CET 2025 and 2026 papers. Tap Show answer, or open the detailed solution (free login). Page 3 of 6.
Eight taps are fitted to a water tank. Some are inlet taps that fill the tank, while the remaining are outlet taps that empty it.
Each inlet tap can fill the tank in 12 hours, and each outlet tap can empty the tank in 36 hours.
When all the taps are opened together, the tank is filled in 3 hours.
How many of the taps are inlet (water) taps?
- 3
- 4
- 5
- 6
- 7
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Answer: C. 5
A water tank has three taps: A, B and C. A fills four buckets in 24 minutes, B fills 8 buckets in 1 hour and C fills 2 buckets in 20 minutes. If all the taps are opened together, a full tank is emptied in 2 hours. If a bucket can hold 5 liters of water, what is the capacity of the tank in liters ?
- 180
- 260
- 320
- 360
- 240
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Answer: E. 240
Three taps have diameters of 1 cm, 4/3 cm, and 2 cm respectively. The rate of water flow through each tap is proportional to the square of its diameter. The tap with the largest diameter can fill the tank by itself in 61 minutes. If all three taps are opened together, how long will it take to fill the tank completely ?
- 36 minutes
- 24 minutes
- 15 minutes
- 28 minutes
- 45 minutes
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Answer: A. 36 minutes
Two pipes, A and B, can fill a tank individually in 15 minutes and 20 minutes, respectively. Both pipes are opened simultaneously, but after 4 minutes, pipe A is closed. How much total time is required to fill the tank completely?
- 15 minutes 30 seconds
- 14 minutes 40 seconds
- 12 minutes 40 seconds
- 14 minutes 30 seconds
- 12 minutes 30 seconds
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Answer: B. 14 minutes 40 seconds
A ship 156 km from the shore develops a leak which admits 2.5 metric tons of water in 6 minutes and 30 seconds. A quantity of 68 metric tons would suffice to sink the ship, but luckily the ship's pumps can throw out 15 metric tons in an hour. The average rate of sailing so that it just reaches the shore from where it left as it begins to sink should be :
- 25kmph
- 10kmph
- 18kmph
- 15kmph
- 60kmph
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Answer: C. 18kmph