更多"The term 'pour point' is defined as"的相关试题:
[单项选择]The pour point of lubricating oils is affected the most by which of the following?（）
A. Extensive centrifuging
B. Wax content
C. Water content
D. Acid content
[单项选择]If you change from a low pour point lubricant to a high pour point lubricant in a refrigeration system, （）.
A. compressor lubrication will be improved
B. oil will not leave the crankcase
C. compressor valves will be damaged
D. oil may congeal in the evaporator
[单项选择]Obviously, for a given fuel oil, its pour point is （） its cloud point.
A. lower than
B. higher than
C. as same as
D. better than
[简答题]什么叫班轮条款（Liner Term/Berth Term）？
[单项选择]Maintaining the lowest possible scavenging air temperature at all times is not recommended due to the possibility of the （）.
A. air charge density becoming too high
B. piston crown surfaces becoming too cold
C. formation of excessive quantities of condensate
D. compression pressure being greatly reduced
[单项选择]TEM波是指（）。
A. 横电磁波，无纵向电磁场分量的电磁波
B. 电场纯横向波，此时纵向只有磁场分量
C. 磁场纯横向波，此时纵向只有电场分量
D. 纵向既有电场分量又有磁场分量
[单项选择]TEM样品间接制备方法有（）
A. 一级变型法，二级变型法
B. 三级变型法，萃取复型法
C. 三级变型法，二级变型法
[单项选择]Under normal operating conditions, the highest temperature and pressure conditions existing in a flash-type evaporator will occur in the （）.
A. first stage
B. second stage
C. distillate cooler
D. salt water feed heater
[单项选择]The main propulsion diesel engine jacket water temperature rises above normal, with the raw water sea suction and the expansion tank water level being normalWhich of the following problems is most likely the cause?（）
A. Faulty thermostatic bypass valve
B. Eroded zinc pencils in the heat exchanger
C. Steam formation in the expansion tank
D. Excessive leakage from jacket water pump seal
[判断题]在csh下把TERM变量设成sun-cmd，可以使用命令setenv TERM sun-cmd。
[单项选择]以下不是TEM试样直接制备方法有（）
A. 超薄切片法
B. 薄膜法
C. 粉末分散法
D. 萃取复型法
[判断题]VPN可以在公有平台上替代专有的point-to-point链路。
[单项选择]以下不是TEM的基本成像原理的是（）
A. 衍射衬度
B. 散射衬度
C. 相位衬度
D. 反射衬度
[单项选择]A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by（）.
A. cutting a square notch at each end of the crack
B. drilling a hole at each end of crack
C. slot-welding the crack
D. welding a doubler over the crack
[单项选择]The term MODERATE SPEED was previously interpreted as meaning a speed which would enable a vessel（）within half the range of visibility.
A. stopping
B. to stop
C. to be stopped
D. to be stopping
[单项选择]Horton Point Light（）.
A. is 14 feet above sea level
B. has a fixed green light
C. is shown from a white square tower
D. is synchronized with a radio beacon
[判断题]在天线的近场区，天线辐射场可近似为TEM波。
