Pipes And Cistern(Quantitative Aptitude ) Questions and answers for exam Preparation

Quantitative Aptitude

PIPES AND CISTERN MCQs

Pipes & Cisterns

Total Questions : 431 | Page 8 of 44 pages

Question 71. A tank has a leak which would empty the completely filled tank in 10 hours. If the tank is full of water and a tap is opened which admits 4 litres of water per minute in the tank , the leak takes 15 hours to empty the tank. How many litres of water does the tank hold?

2400 litters
4500 litters
1200 litters
7200 litters

Discuss Question

Answer: Option D. -> 7200 litters

Question 72. A pump can fill a tank with water in 2 hours. Because of a leak, it took $$2\frac{1}{3}$$ hours to to fill the tank. The leak can drain all the water of the tank in?

$$4\frac{1}{3}$$ hours
7 hours
8 hours
14 hours

Discuss Question

Answer: Option D. -> 14 hours

Question 73. One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in-

81 min
108 min
144 min
192 min

Discuss Question

Answer: Option C. -> 144 min

Question 74. A swimming pool is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the pool in the same time during which the pool is filled by the third pipe alone. The second pipe fills the pool 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?

6 hours
10 hours
15 hours
30 hours

Discuss Question

Answer: Option C. -> 15 hours

Question 75. 12 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be needed to fill the same tank, if the capacity of each bucket is 9 litres?

Discuss Question

Answer: Option D. -> 18

Question 76. Two pipes A and B can fill a tank in 20 and 30 hours respectively. Both the pipes are opened to fill the tank but when the tank is one - third full, a leak develops in the tank through which one - third water supplied by both the pipes gose out. The total time taken to fill the tank is?

12 hours
14 hours
16 hours
18 hours

Discuss Question

Answer: Option C. -> 16 hours

Question 77. Two pipes can fill a tank in 40 and 48 minutes respectively and a waste pipe can empty 3 gallons per minutes. All the three pipes working together can fill the tank in 30 minutes, The capacity of the tank is-

60 gallons
120 gallons
180 gallons
240 gallons

Discuss Question

Answer: Option D. -> 240 gallons

Question 78. An outlet pipe can empty a cistern in 3 hours. In what time will empty $$\frac{2}{3}$$ of the cistern?

3 hours
5 hours
2 hours
4 hours

Discuss Question

Answer: Option C. -> 2 hours

Question 79. Two pipes can fill a tank in 12 hours and 16 hours respectively. A third pipe can empty the tank in 30 hours. If all three pipes are opened and functions simultaneously, how much time will the tank take to be full?( in hours )

$$10\frac{4}{9}$$
$$9\frac{1}{2}$$
$$8\frac{8}{9}$$
$$7\frac{2}{9}$$

Discuss Question

Answer: Option C. -> $$8\frac{8}{9}$$

Question 80. A tank is 7 metre long and 4 meter wide wide. At what speed should water run through a pipe 5 cm broad and 4 cm deep so that in 6 hours and 18 minutes water level in the tank rises by 4.5 meter?