The reference datum used in determining the heights of land features on most charts is ______.A.mean sea levelB.mean high waterC.mean low waterD.half-tide level

2 Line of balance charts are used most frequently in:

A. Engineering

B. Marketing

C. Manufacturing

D. Accounting

E. Contracts and procurement

● Line of balance charts are used most frequently in:

A Engineering

B Marketing

C Manufacturing

D Accounting

E Contracts and procurement

Line of balance charts are used most frequently in:

A.Engineering

B.Marketing

C.Manufacturing

D.Accounting

E.Contracts and procurement

The abbreviation L.W.R.P. on the navigation maps means ______.

A.low water reference plane

B.low winter runoff point

C.least water river plane

D.land wall reference point

A.transport

B.network

C.presentation

D.session

E.application

29 All of the following statements about control charts are true except:

A. Control charts can be used to establish as well as maintain process control

B. control charts are used to detemine acceptance limits when no limits are stipulated by the product specification; otherwise, one should use the limits dictated by the specification.

C. all data points outside the control chart limits are variations explained by assignable causes.

D. A and B.

E. B and C

● A work breakdown structure (WBS) is a tool used to define and group a project's discrete work elements in a way that helps organize and define the total work scope of the project. A WBS is most useful for（72） .

（72）

A．identifying individual tasks for a project

B．scheduling the start of tasks

C．scheduling the end of tasks

D．determining potential delays

All of the following statements about control charts are true except:

A . Control charts can be used to establish as well as maintain process control

B . control charts are used to detemine acceptance limits when no limits are stipulated by the product specification; otherwise, one should use the limits dictated by the specification.

C . all data points outside the control chart limits are variations explained by assignable causes.

D . A and B.

E . B and C

Generally，______ are used as the track charts on the high sea，______ are used for harbors，inland waters and coastal areas．

A.Mercator charts／Loran charts

B.Admiralty charts／Routeing charts

C.large scale charts／small scale charts

D.small scale charts／large scale charts

The datum from which the predicted heights of tides are reckoned in the tide tables is ______.

A.mean low water

B.the same as that used for the charts of the locality

C.the highest possible level

D.given in table three of the tide tables