( )is monitored on the drain tank and header tank by magnetic switches with a 20seconds delay to prevent false alarms due to surging A.Low pressure of the lubricating oilB.Low level of the lubricating oilC.High temperature of the lubricating oilD.High temperature of the cooling water
( )is monitored on the drain tank and header tank by magnetic switches with a 20seconds delay to prevent false alarms due to surging
A.Low pressure of the lubricating oil
B.Low level of the lubricating oil
C.High temperature of the lubricating oil
D.High temperature of the cooling water
相关考题：
Current liabilities are( )A. due, but not receivable for more than one yearB. due, but not payable for more than one yearC. due and receivable within one yearD. due and payable within one year
You are a network techn ician, study the exhibit carefully. All multilayer switches are running PIM sparse mode. Host CKB and Host CKF are sending IGMPv2 join messages to their respective multilayer switches. Which description is correct?（）A. Switches 1, 2, 3, and 6 will part icipate in the multicast tree once pruning has taken place.B. Switches 2 and 6 will participate in the multicast tree once pruning has taken place.C. Switches 1, 2, 3, and 6 will participate in the multicast tree.D. The multicast server is the rendez vous point of the multicast tree.
Refer to the exhibit. All multilayer switches are running PIM dense mode. Recipient A and Recipient B are sending IGMPv2 joi n messages to their respective multilayer switches. Which statement is true?（）A. The Multicast Server is the root of the multicast tree. Switches 1, 3, 4, and 5 will participate in the multicast tree once pruning has taken place.B. The Multicast Serv er is the root of the multicast tree. Switches 4 and 5 will participate in the multicast tree once pruning has taken place.C. Switch 3 is the root of the multicast tree. Switches 3,4, and 5 will participate in the multicast tree once pruning has taken place.D. Switch 3 is the root of the multicast tree. Switches 1,3,4, and 5 will participate in the multicast tree once pruning has taken place.E. Switch 1 is the root of the multicast tree. Switches 1,4, and 5 will participate in the multicast tree once pruning has taken place.F. Switch 1 is the root of the multicast tree. Switches 1,3,4, and 5 will participate in the multicast tree once pruning has taken place.
The crude oil overflowed from measuring-hole due to ______ the valve of No.1 tank．A.not closeB.not closingC.not have closedD.no closing
When referring to quantity of barite in a P-tank，ullage is the ______．A.Distance of the barite surface above the tank bottomB.Percentage of barite in the tankC.Distance of the barite surface below the tank coverD.Total weight of barite in UPC（ullages per centimeter）
关于Tank-Like小车，以下描述正确的是A．通过控制左轮电机驱动小车前进，通过控制右轮电机驱动小车转向B．通过控制左轮电机驱动小车转向，通过控制右轮电机驱动小车前进C．可以通过控制左右轮电机驱动小车前进，但无法控制小车转向D．通过控制左右轮电机驱动小车前进及转向
汽车（Car)由轮子、发动机、油箱、座椅、方向盘等组成,那么Car类和其他类（Wheel、 Engin、Tank、 Chair、 Steering Wheel)之间的关系是（)A．关联关系B．泛化关系C．实现关系D．依赖关系
3、汽车（Car）由轮子、发动机、油箱、座椅、方向盘等组成，那么，Car类和其它类（Wheel、Engin、Tank、Chair、Steering、Wheel)之间的关系是（）。A．关联关系B．泛化关系C．实现关系D．依赖关系
汽车（Car）由轮子、发动机、油箱、座椅、方向盘等组成。那么car类和其他类（Wheel、Engin、Tank、Chair、SteeringWheel）之间的关系是（）A．泛化关系（Generalization）B．实现关系（Realization）C．包含关系（Inclusion）D．组合关系（Composition）