更多"A millibar is a unit of()."的相关试题:
[名词解释]Instruction Decode Unit
[名词解释]Bus Interface Unit BIU
[单项选择]Before charging a refrigeration unit, the refrigerant charging lines should be()
A. flushed with clean refrigerant oil
B. purged with the refrigerant
C. washed with an ammonia and alcohol solution
D. grounded to compressor
[单项选择]A vessel, other than a rescue unit, designated to co-ordinate surface search and rescue operation within a specified area is known as().
A. salving vessel
B. co-ordinator surface search
C. mersar
D. the vessel being salved
[单项选择]If you are sailing from the East Coast of the United States to the Caribbean Sea,which publication would contain information on weather,currents,and storms?()
A. Sailing Charts of the Caribbean Sea
B. Pilot Charts of the North Atlantic
C. Light Lists,Atlantic and Gulf Coast
D. Tidal Current Tables
[单项选择]Each drilling unit equipped with helicopter fuel storage tanks must have the tanks installed as far as practicable from the().
A. landing area and sources of vapor ignition
B. main deck
C. engine room
D. drill floor
[单项选择]A mobile offshore drilling unit must display obstruction lights when it is on the waters over the Outer Continental Shelf and is().
A. under tow
B. fixed to the seabed
C. underway
D. All of the above
[单项选择]Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is().
A. list
B. heel
C. trim
D. flotation
[单项选择]In a pneumatic automation system, a unit producing a signal to govern the position of the controller of the measured variable, relative to the value of the measured variable, is said to have().
A. reset action
B. proportional action
C. two position action
D. rate action
[单项选择]The unit of electrical power is the ()
A. ampere
B. kilovolt
C. watt
D. farad
[单项选择]The rotating unit of a spilt windlass consists of a() with shaped snugs to grip the anchor cablea mooring drum for paying out or letting go of mooring wires and warp end for warping duties.
A. cranes
B. mooring barrel
C. capstans
D. cable lifter
[单项选择]A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started? ()
A. When the towing vessel enters the fog
B. When the drilling rig enters the fog
C. When the towing vessel can no longer be seen from the rig
D. Immediately
[单项选择]An offshore drilling unit must be equipped with a first aid kit approved by the().
A. Coast Guard
B. American Bureau of Shipping
C. Minerals Management Service
D. Mine Safety and Health Administration
[单项选择]An offshore drilling unit is required to carry on board an operations manual approved by the ().
A. Coast Guard
B. National Cargo Bureau
C. Minerals Management Service
D. builder
[单项选择]A refrigeration unit will tend to short cycle when operating ().
A. under heavy loads
B. during hot gas defrost
C. under light loads
D. during starting conditions
[单项选择]The unit of electrical resistance is the ()
A. ampere
B. volt
C. watt
D. ohm
[单项选择]The unit "hertz" is equivalent to ()
A. coulombs per second
B. revolutions per second
C. revolutions per minute
D. cycles per second