Q. In “two way ball valves” the flow can be switched and controlled by rotating the ball in 90 degrees.

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Q. What is the percentage change in amount of water flowing through a valve in one hour when originally the rate of flow from the valve was 10 m³/hr which was reduced to 5 m³/hr?

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Q. What is the rate of flow of water in Litres per second from a cylindrical valve if the cylindrical valve has a diameter of 10 cm and velocity of water is 12 m/s?

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Q. What is the rate of flow of water from a cylindrical valve if the cylindrical valve has a diameter of 10 cm and velocity of water is 5 m/s?

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Q. What is the percentage change in amount of water flowing through a valve in one hour when originally the rate of flow from the valve was 15 m³/hr which was reduced to 5 m³/hr?

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Q. Which type of hydraulic cylinders use 4 or more bolts to tie up the head from the base plate?

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Q. Which vice is also known as tail vice?

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Q. Tie-Rod cylinder can bear more pressure than welded cylinder.

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Q. Which is an example of linear actuator?

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Q. Which vice is also known as post vice?

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Q. Which type of cylinder should be used to generate high pressure in narrow radial space?

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Q. What does PSI stand for in terms of pressure measurement?

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Q. Which type of cylinder contains series of nested tubing?

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Q. Spring return type single acting cylinder is commonly used for tool and object holding purpose.

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Q. Comb drives can be referred as linear actuators.

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Q. Linear actuators can only be made using hydraulic push system.

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Q. Which type of cylinders can extend piston from both sides?

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Q. Which is not an example of linear actuator?

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Q. Which type of cylinder has rod length less than the piston diameter?

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Q. Duplex cylinders contain more than one piston.

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