What is a project management information system

A:Computerized status tracking system. B:Manual status tracking system. C:Method to determine and archive how the project is doing. D:Method to gather, integrate, and disseminate what and how the project is doing.

The ______ has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.

A:application B:information system C:network D:operating system

The (74) has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.

A:application B:information system C:network D:operating system

下列关于System类的叙述中，错误的是

A:System类是一个final类 B:System类不能实例化 C:System类中没有定义属性 D:System类主要提供了系统环境参数的访问

In the closed cooling system, the water _____.

A:is made to circulate out of the system B:is made to circulate within the system C:is made circulate within the system D:is made circulate out of the system

The refrigeration system low pressure cutout switch is actuated by _____.

A:an electric system manager B:a sensing bulb at the tail coil of the evaporator C:pressure changes in the suction line D:failure of the king solenoid valve

After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?

A:The relief valves in the system should be readjusted B:The filters and strainers should be checked frequently C:All system pressure should be readjusted D:The system should be drained and renewed with a fluid of different operatingcharacteristics

Refrigeration system compressor crankcase sweating is an indication of _____.

A:insufficient lube oil circulating through the system B:excessive circulation of lube oil through the system C:insufficient refrigerant in the system D:an overworked compressor

If an air compressor is used to supply air primarily to the combustion control system and other pneumatic controllers, the entire system is known as the _____.

A:control air system B:forced draft air system C:supply air system D:ships service air system

Pressure in an operating hydraulic system is developed _____.

A:only by the pump as its primary function B:by resistance to the fluid flow through the system C:by the thermal input to the systems fluid D:solely by the charge applied by the accumulators