Practice Pipes and Cisterns Online Test 4 | Englishfreetest.com By englishfreetest.com 20 Minutes 10 Question Aptitude Quiz, Aptitude Tests, Pipes and Cisterns, Practice Pipes and Cisterns Online Test 4 Here's the exercise 'Practice Pipes and Cisterns Online Test 4 | Englishfreetest.com' about Aptitude Quiz - Aptitude Tests. Career aptitude test. What career best fits your personality? This free career aptitude test can give you insight into your job personality. Aptitude tests are short tests employers use to assess whether a candidate has the level of competency necessary for a particular type of job. In general these tests will measure critical thinking skills, attention to detail and problem-solving skills. Aptitude tests are often used as part of an interview process, particularly for graduate jobs, entry level jobs and jobs in Finance. You can find more to the lesson and more exercises. Aptitude Quiz - Aptitude Tests in here.Finally, click here to "Test" for start practice exercise . Content test: Question 1: A water tank is two-fifth full.Pipe A can fill a tank in 10 minutes and pipe B can empty it in 6 minutes.If both the pipes are open,how long will it take to empty or fill the tank completely? A. 6 min.to empty B.6 min.to fill C.9 min.to empty D. 9 min.to fill Question 2: Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. The number of hours taken by C alone to fill the tank is: A. 10 B.12 C.14 D.16 Question 3: A booster pump can be used for filling as well as for emptying a tank. The capacity of the tank is 2400 m^3. The emptying capacity of the tank is 10m^3 per minute higher than its filling capacity and the pump needs 8 minutes lesser to empty the tank than it needs to fill it. What is the filling capacity of the pump? A. 75 m^3/min B. 70 m^3/min C. 60 m^3/min D. 50 m^3/min Question 4: Water flows into a tank which is 200 m long and 150 m wide, through a pipe of cross-section (0.3m x 0.2m) at 20 km/h. In what time will the water level be 12m ? A.200 hrs B.240 hrs C. 300 hrs D. 270 hrs Question 5: Two pipes A and B can separately fill a cistern in 60 min and 75 min respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 min. In how much time, the third pipe alone can empty the cistern ? A. 85 min B.95 min C.105 min D.100 min Question 6: There is an empty reservoir whose capacity is 30 litres. There is an inlet pipe which fills at 5 L/min and there is an outlet pipe which empties at 4 L/min. Both the pipes function alternately for 1 minute. Assuming that the inlet pipe is the first one to function, how much time will it take for the reservoir to be filled up to its capacity? A.49.5 min B. 50 min C. 52 min D. 51 min Question 7: Three taps I, J and K can fill a tank in 20,30and 40 minutes respectively. All the taps are opened simultaneously and after 5 minutes tap A was closed and then after 6 minutes tab B was closed .At the moment a leak developed which can empty the full tank in 70 minutes. What is the total time taken for the completely full ? A. 24.315 minutes B.26.166 minutes C.22.154 minutes D.24 minutes Question 8: In what time would a cistern be filled by three pipes which diameters are 2 cm, 3 cm and 4 cm running together, when the largest alone can fill it is 58 minutes? The amount of water flowing in each pipe is proportional to the square of its diameter. A.26 min B.32 min C.36 min D.42 min Question 9: Pipe K fills a tank in 30 minutes. Pipe L can fill the same tank 5 times as fast as pipe K. If both the pipes were kept open when the tank is empty, how much time will it take for the tank to overflow ? A.3 minutes B.2 minutes C.4 minutes D. 5 minutes Question 10: One fill pipe A is 3 times faster than second fill pipe B and takes 32 minutes less than the fill pipe B. When will the cistern be full if both pipes are opened together? A.8 min B.9 min C.10 min D.12 min Test Share this post Author englishfreetest.com Education is the most powerful weapon we use to change the world.