Q. Which of the following is not included in the friction head?

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Q. When the pumps are in parallel operation?

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Q. When the pumps are in series operation?

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Q. The efficiency of the pump at half load is ____________

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Q. The efficiency of the pump at quarter load is ____________

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Q. The installed capacity of the pump does not depend on which of the following?

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Q. If the diameter of pumping mains decreases, then the total dynamic head will increase.

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Q. Which of the following is incorrect regarding cast iron pipes?

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Q. Horizontally cast iron pipes are called _________

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Q. Mcwane pipes are ___ stronger in tension than Pit cast pipes.

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Q. The enlarged end of a cast iron pipe is called ________

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Q. What is the quantity of lead required for a 15cm diameter cast iron pipe?

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Q. Which of the following joint is called run lead joint?

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Q. In which of the following joint, pipes do not have sockets or spigots?

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Q. Which of the following joint is highly influenced by temperature?

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Q. Which of the following is the advantage of cast iron pipes?

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Q. Which grade of concrete is used in Reinforced concrete pipes?

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Q. The pre-stressed concrete pipes are used for heads ____

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Q. Which of the following is correct regarding Cement concrete pipes?

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Q. The tensile strength of Asbestos cement pipes is _____

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