Question 416General Subjects - Assistant Engineer70% to pass
A centrifugal pump may fail to deliver water when first started if the _______________.
AI Explanation
The correct answer is D) the pump is not primed.
For a centrifugal pump to work properly, it must be primed, meaning the pump casing and suction line must be filled with liquid before the pump is started. If the pump is not primed, the pump will not be able to draw in and deliver water, as the impeller needs to be submerged in liquid to create the necessary suction. The other answer choices, such as an improperly located seal ring or a plugged water seal pipe, may cause issues with the pump's operation, but they do not directly prevent the pump from being able to draw in and deliver water when first started, as an unprimed pump would.
Related Questions
#414 The simplest method to use for determining if a centrifugal pump is operating as designed is to _______________.#415 Excessive air leakage into the suction side of a centrifugal pump would be indicated by which of the following operational problems? #417 Charring or glazing of the inner circumference of the packing rings in a centrifugal pump is caused by _______________.#418 If a centrifugal pump were continually operated with the discharge valve closed the _______________.#419 Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by _______________.