更多"What is the best indication of the "的相关试题:
[单项选择]What best describes the structure from which Stratford Point Light is shown?（）
A. Brown conical tower with white horizontal band in center of light on black pier
B. Red conical tower on brown cylindrical pier
C. White octagonal house on brown cylindrical pier
D. White conical tower，with brown band midway of height
[单项选择]What best describes an anchor buoy（）.
A. A black ball that is hoisted when the ship anchors
B. A buoy attached to the anchor
C. A buoy attached to the scope of an anchor chain
D. A mark of the number of fathoms in an anchor chain
[单项选择]What is the first visible indication of the presence of a tropical cyclone or hurricane（）.
A. Stratocumulus clouds or strange birds
B. Rain and increasing winds
C. An exceptionally long swell
D. Dark clouds and the“bar”of the storm
[单项选择]What provides little or no indication that a vessel is dragging anchor? （）
A. Increasing radar range to a fixed object ahead
B. Drift lead with the line leading perpendicular to the centerline
C. Vibrations felt by placing a hand on the cable
D. Changing bearings to distant fixed objects abeam
[单项选择]What is best suited for fighting a fire in a ballast control room?（）
A. Automatic sprinkler system
B. Steam smothering system
C. Dry chemical system
D. Carbon dioxide system
[单项选择]What monitoring device best indicates the load being carried by a diesel engine?（）
A. Lube oil pressure gauge
B. Jacket water temperature gauge
C. Tachometer
D. Exhaust pyrometer
[单项选择]When loading bulk liquid cargo，what is the FIRST action you should take if a cargo valve jammed open?（）
A. Trip the pump relief valve
B. Order the dock man to shut down
C. Call the owner，operator，or terminal supervisor
D. Run out the vessel's or terminal's fire hose
[单项选择]When loading bulk liquid cargo，what is the first action you should take if a cargo valve jammed open?（）
A. Call the owner，operator，or terminal supervisor
B. Unplug the deck scuppers
C. Order the dock man to shut down
D. Run out the vessel's or terminal's fire hose
[单项选择]What is not usually a concern when loading a single-hulled tanker?（）
A. Bending moments
B. Initial stability
C. Draft
D. Trim
[单项选择]What is NOT a problem area when loading barges on a LASH type vessel? （）
A. Frequent stability calculations required
B. Thorough pre-planning required
C. Limiting depths alongside berths restrict barge drafts
D. Minimum trim and 0°list are required for optimum operations
[单项选择]What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions（）.
A. One shot of chain for every ten feet of water
B. One shot of chain for every fifteen feet of water
C. One shot of chain for every thirty feet of water
D. One shot of chain for every ninety feet of water
[单项选择]What is the best instrument for establishing a safe working area before welding in a confined space? （）
A. An oxygen indicator
B. A combustible gas indicator
C. A combination combustible gas and oxygen indicator
D. A flame safety lamp
[单项选择]What is commonly used to create turbulence in a diesel engine combustion system?（）
A. Shape of the piston crowns
B. Increasing the compression ratios
C. Increasing the piston crowns
D. Increasing the turbocharger gear ratio
[单项选择]What is the BEST conductor of electricity（）.
A. Carbon dioxide
B. Distilled water
C. Fresh water
D. Salt water
[单项选择]I’m not fully aware（）what happened at the loading port．
A. at
B. to
C. of
D. about
[单项选择]What is the best way of stopping an over-speeding diesel engine?（）
A. Disconnect the battery cables from the starting motor
B. Drain the hydraulic fluid from the governor sump
C. Block the flow of cooling air to the radiator
D. Secure the fuel supply and block the air intake
