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Which of the listed conditions can lead to cavitation气穴in a centrifugal pump?()
A centrifugal pump may fail to deliver water when first started if the ().
Centrifugal pumps have what advantage(s) over reciprocating pumps?().
The advantage of a centrifugal pump as compared with a reciprocating pump is that ().
Bilges may be pumped ().
If a bilge pump failed to build up discharge pressure, you should check for ().
The pumps employed on board ship can be divided into two main categories ie() pumps and centrifugal pumps.
A centrifugal pump attempting to develop flow against a closed discharge valve has a/an ().
A multistage centrifugal pump can be BEST described as having ().
The discharge rate or capacity of a centrifugal pump will vary directly as the ().
The ()pump is usually used as the emergency bilge pump.
The capacity of a centrifugal pump can be increased by the installation of a larger diameter impeller Another means of increasing the pump capacity is to ().
Most pump manufacturers recommended that the discharge piping for centrifugal pumps be ().
If a centrifugal pump vibrates and is noisy when operating, the cause could be ().
If the capacity of a centrifugal pump decreases gradually over a long period of time, you should replace the ().
The usual symptoms of cavitation in a centrifugal pump is ().
The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than () of the total bilge pumping capacity.
The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than _____ of the total bilge pumping capacity.
If a centrifugal pump were continually operated with the discharge valve closed, the ().
If a centrifugal bilge pump were continually operated with the discharge valve closed the ().
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