A centrifugal pump vibrates excessively during operationUpon disassembling the pump it is found that the impeller is out of balanceWithout an available spare, you should （）. -题库考试答案搜索网

A centrifugal pump vibrates excessively during operationUpon disassembling the pump it is found that the impeller is out of balanceWithout an available spare, you should （）.

单选题

2022-03-16 08:42

A、drill holes through the heavy side of the impeller until it balances
B、weld counterweights to the light side of the impeller
C、remove metal from the heavy side by machining in a lathe
D、acid wash and serape the heavy side until it balance

查看答案

正确答案

试题解析

标签：船舶辅助机械

感兴趣题目

If you were operating a centrifugal water service pump with worn wearing rings, the （）.

With respect to centrifugal pump impellers, which of the following descriptions represents the correct centrifugal pump classification? （）

Reduced capacity, accompanied by vibration and noise at the suction of a centrifugal pump is a result of （）.

A centrifugal bilge pump requires priming （）.

The cleaned heated oil, after passing through the centrifuges, is to be pumped to a （）.

The purpose of the wearing rings used in a centrifugal pump is to （）.

What is a function of the wearing rings used in most centrifugal pumps?（）

In order to properly remove air from the casing of a centrifugal pump when starting, the pump should have a （）.

Centrifugal pumps are non-positive and a fairly （） unit.

The volute of centrifugal pump also acts as a diffuser converting （）into pressure head.

Excessive air leakage into the suction side of a centrifugal pump would be indicated by which of the following operational problems?（）

Under centrifugal pumps are the volute, diffuser, mixed-flow, axial flow and （） or regenerative types.