更多"[单选题] The purpose of the tricing pe"的相关试题:
[单选题] What is the main purpose of dunnage?
A. To act as ballast for light vessels
B. To provide ventilation and drainage for cargo
C. To secure the tarpaulins in place
D. To support weakened builkheads
[单选题] The principal purpose of adjustment of the magnetic compass is to eliminate(消除) ______ as far as possible.
A. variation
B. compass error
C. deviation
D. earth's magnetic force
[单选题] What is the purpose of VRM control ?
A. To measure distance accurately
B. To measure bearing accurately
C. To measure range and bearing
D. To adjust radar monitor
[单选题] The purpose of new technology is to make life easier, _____ it more difficult.
A. not make
B. not to make
C. not making
D. do not make
[多选题]The purpose of the United Nations are:
A. to maintain international peace and security.
B. to develop friendly relations among nations.
C. to achieve international cooperation in solving international problems.
D. to be a center for harmonizing the actions of nations.
[单选题]The purpose of annealing any metal is to make the metal
A.harder
B.tougher
C.softer
D.smoother
[单选题] What is the purpose of the radar reflector?
A. To make objects less visible
B. To make echoes weaker on the radar
C. To make large echoes smaller
D. To make small objects better visible
[单选题] The purpose of the tripping line on a sea anchor is to ______.
A.Aid in casting off
B.Direct the drift of the vessel
C.Aid in its recovery
D.Maintain maximum resistance to broaching
[单选题] What is the purpose of the girders in the tank?
A. They support the stiffeners
B. They transfer all the sea forces acting on the plating
C. They support the stiffeners and take up some of the sea forces
D. I don’t know
[单选题] For the purpose of training and drills,if reasonable and practicable,rescue boats on board must be launched with their assigned crew ______.
A. once a week
B. once a month
C. once a year
D. twice a year
[单选题]Changing___of metal is the main purpose of heat treatment.
A.the weight
B.the size
C.the property
D.the shape
[单选题] The purpose of Musters and Drills is to _________________.
A. fight fires
B. rescue persons
C. be well prepared for dangerous situations
D. keep a good organization
[单选题] What is the purpose of a striker plate(防撞板) ________.
A. Provides surface for applying force on machinery
B. Provides landing surface for the sounding bob
C. Absorbs machinery vibration
D. Prevents valve stem over-travel
[单选题] What is the main purpose of DGPS?
A.Improve positioning accuracy
B.Decrease positioning accuracy
C.Reduce operational cost
D.I don't know
[单选题] What is the purpose of a Pedestal Roller?
A.To change the direction of lead on a mooring line
B.To secure a chain
C.To secure the eye of a mooring line
D.To facilitate towing
[单选题]驾驶舱安装的设备/设施的目的: the purpose of installing equipment/furnishing in the cockpit are:
A.安全,舒适safety,comfort
B.安全,舒适,方便safety,comfort and convenience
C.安全,方便safety,convenience
[单选题] What is the purpose of the limit switch on gravity davits ________.
A.To cut off the power when the davits hit the track safety stops
B.To stop the davits from going too fast
C.To cut off the power when the davits are about 12 inches or more from the track safety stops
D.None of the above