題組內容

五、請將下列 Q&A 問與答翻譯成中文( 20 分) (20%)

3. After starting, if such a pump does not build up adequate discharge pressure it may be due to: (2%)
(1) Oil viscosity in suction lines too high, due to inadequate heating. (2%)
(2) Excessive air leaks in valve glands, pump glands, or relief valve casing. (2%)