8) Axial flow pump is started with its delivery valve

kept fully closed

kept fully open

irrespective of any position

kept 50% open

Answer is:

kept fully open

Theory of Machines MCQ with Answers

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9) When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

horizontal

nearly horizontal

steep

first rise and then fall

Answer is:

steep

10) Multistage centrifugal pumps are used to obtain

high discharge

high head

pumping of viscous fluids

high head and high discharge

Answer is:

high head

11) When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

horizontal

nearly horizontal

steep

first rise and then fall

Answer is:

nearly horizontal

12) In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by

designing new impeller

trimming the impeller size to the required size by machining

not possible

some other alterations in the impeller

Answer is:

trimming the impeller size to the required size by machining

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8) Axial flow pump is started with its delivery valve

kept fully open

Theory of Machines MCQ with Answers

Related Theory of Machines MCQ with Answers

9) When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

steep

10) Multistage centrifugal pumps are used to obtain

high head

11) When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

nearly horizontal

12) In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by

trimming the impeller size to the required size by machining

Theory of Machines MCQ with Answers