更多"（）The main center-line structural m"的相关试题:
[单项选择]（）is the main center-line structural member，running fore and aft along the bottom of a ship，sometimes referred to as the backbone.
A. Frame
B. Deckbeam
C. Stringer
D. Keel
[单项选择]（）is not a longitudinal structural member.
A. sideshell
B. bottom shell plating
C. inner bottom plating
D. transverse bulkhead
[单项选择]The main propulsion diesel continues running after you try to shut downYoushould now attempt to（）
A. stop the combustion air supply
B. engage the jacking gear
C. secure the lube oil pump
D. shut off the fuel at the day tank
[单项选择]The main purpose of inspection for a running diesel engine is（）
A. testing for the mechanical load and the thermal load
B. inspecting thermal and mechanical condition of the engine
C. inspecting each system and exhaust temperature
D. testing for compress pressure and explosion pressure
[单项选择]When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?（）
A. The diesel oil must never be allowed to mix with the heavy fuel
B. The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valve
C. The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve
D. The heating steam must be secured before the diesel oil passes through the three-way valve
[单项选择]The central longitudinal structural hull strength member of the lower hulls of semisubmersible ship’s is called the（）.
A. stress plate
B. keel
C. rider plate
D. main beam
[单项选择]Vertical structural members attached to the floors that add strength to the floors are called（）.
A. boss plates
B. buckler plates
C. stiffeners
D. breast hooks
[单项选择]Compared to internal structural plating. The exterior hull plating on a vessel is usually（）.
A. stronger
B. thinner
C. more corrosion resistant
D. a lower grade steel
[单项选择]Compared to internal structural plating，the exterior hull plating on a vessel is usually（）.
A. stronger
B. thinner
C. more corrosion resistant
D. a lower grade steel
[单项选择]The athwartship hull structural members of a ship are（）.
A. stringers
B. girders
C. breasthooks
D. deck beams
[单项选择]The structural members of the hull extending in a fore and aft direction are called （）.
A. frames
B. joiners
C. longitudinals
D. knees
[单项选择]Structural traps are traps（）are formed because of a deformation in the rock layer （）contains the hydrocarbons.
A. that, that
B. what,what
C. what,that
D. that,what
[单项选择]Structural stress levels in a ship are the sum of loading stresses and stresses due to（）.
A. environmental loads
B. variable loads
C. ballast loading
D. mooring loads
[单项选择]Structural bulkheads on a ship are usually（）.
A. continuous
B. watertight
C. transverse
D. non-watertight
[单项选择]With reference to a vessel’s structural integrity, the most significant characteristic of a cryogenic liquid is its （）.
A. capability of causing brittle fractures
B. highly corrosive action on mild steel
C. vapor cloud which reacts violently with saltwater
D. toxicity at atmospheric pressure
[单项选择]Structural stress on a ship can be reduced by（）.
A. lessening the effect of environmental forces
B. even and symmetrical variable loading
C. local concentration of heavy consumables
D. increasing the metacentric height
[单项选择]The main purpose of changing main engine to electronic controlled is not to（）
A. control fuel injection time more precisely
B. control fuel injection rate more precisely
C. meet the environmental requirements
D. meet high engine speed requirements
[单项选择]During compressors running the accumulated moisture in the separators must be （）.
A. drained off
B. collected
C. sent to the crankcases
D. separated with oil
