A warmer than normal compressor suction line might be caused by ().
A、A.insufficient lubrication
B、B.insufficient refrigerant
C、C.excess refrigerant
D、D.excessive opening of the expansion valve
A、A.insufficient lubrication
B、B.insufficient refrigerant
C、C.excess refrigerant
D、D.excessive opening of the expansion valve
A、maintain higher than normal jacket water temperature B、change the lube oil more frequently than normal C、maintain a higher air-box temperature than normal D、maintain a higher air-box pressure than normal
A、have lows lower than normal and highs higher than normal B、have lows higher than normal and highs lower than normal C、are unpredictable D、occur in the spring of the year
A、A.have lows lower than normal and highs higher than normal B、B.have lows higher than normal and highs lower than normal C、C.are unpredictable D、D.occur in the spring of the year
A、lower than normal cylinder pressure and low exhaust temperature B、lower than normal cylinder pressure and high exhaust temperature C、higher than normal cylinder pressure and low exhaust temperature D、higher than normal cylinder pressure and high exhaust temperature
A、sea water temperature must never be warmer than 40℃ B、jacket water pressure should always be greater than the sea water pressure C、jacket water temperature must always be less than 60℃ D、jacket water pressure must always be less than the sea water pressure
A、excessive lube oil consumption B、lower than normal lube oil temperature C、higher than normal exhaust back pressure D、excessive crankshaft end play
A、A.conductivity higher than a normal conductor B、B.conductivity higher than a normal insulator C、C.high conductivity at low temperatures D、D.low conductivity at high temperatures
A、A.oil foaming in the compressor B、B.higher than normal suction and discharge pressures with a higher box temperature C、C.higher than normal discharge pressure with a normal box temperature D、D.the compressor to run continuously
A、Excessive fuel B、Higher than normal temperatures for star up C、Longer starting periods D、Higher than normal lube oil pressure