更多"（）during the last repair?"的相关试题:
[单项选择]During repair,lubrication lines and orifices must be （）.
A. taken away
B. engaged
C. connected
D. sealed off
[单项选择]Shore power must be（） during dock repair.
A. disconnected
B. switched off
C. cut off
D. connected
[单项选择]During the dock repair, should be measured firstly before tail shaft drawn out（）
A. the sinking of tail shaft
B. the clearance of stern bearing
C. the total flexure of shaft
D. main engine crankshaft deflection
[单项选择]During the dock repair, when installing the tail shaft and propeller, who should be on the spot to supervise?（）
A. chief engineer
B. the engineer
C. captain
D. any member of the engine department
[单项选择]During the dock repair, each sea valve must be disassembled, cleaned and ground well.Before it reassemble the sealing surface between the valve and the valve seat should be checked by （）
A. chief engineer
B. surveyor
C. the engineer
D. the technique personnel of the shipyard
[单项选择]During the deck repair,（） should be measured firstly before tail shaft is drawn out.
A. the sinking of tail shaft
B. the clearance of stern bearing
C. the total flexure of both end bearing
D. main engine crankshaft deflection
[单项选择]The two factors which make underwater hull repair difficult are accessibility and the（）.
A. availability of tools
B. shape of the hull
C. pressure exerted by the water
D. threat of progressive flooding
[单项选择]A ship under construction or major repair will acquire permanent magnetism due to（）while sitting stationary in the earth’s magnetic field.
A. hammering and jarring
B. vibration and pounding
C. varying magnetic fields
D. stable or permanent magnetism of the ship
[单项选择]The Chief Petty Officer employed in the repair and maintenance work shall such abilities as to prepare and apply（）.
A. primers and paints
B. painters
C. promisers
D. compromisers
[单项选择]After an explosion，repair of emergency machinery and services should be accomplished（）.
A. after control of fire，flooding，and structural repairs
B. immediately，before the emergency is under control
C. after control of fire，but before control of flooding
D. after stability is restored
[单项选择]A bridge over a navigable waterway is being repaired. There is a traveller platform under the bridge’s deck that significantly reduces the vertical clearance. If required by the CG district commander，how will this be indicated at night?（）
A. Illumination by flood lights
B. A quick flashing red light at each lower corner
C. A strobe light visible both up and downstream
D. Fixed amber lights under the extreme outer edges of the traveller
[单项选择]Repair of structures on a ship in the vicinity of liquid mud handling areas presents what possible hazard?（）
A. Toxic gasses may be present
B. Flammable gasses may be present
C. Liquid muds may flood adjoining spaces
D. An oxygen-deficient atmosphere may be present
[单项选择]Which one of the following repair will cost the least cost?（）
A. Routine docking repair
B. Voyage repair
C. Damage repair
D. Conversion
[单项选择]Fix the fuel injector into （） after repair.
A. the cylinder liner
B. the cylinder cover
C. the cylinder jacket
D. the piston
[单项选择]Repair of vital machinery and services on a ship should be accomplished（）.
A. after control of fire，flooding，and structural repairs
B. immediately
C. after control of fire，but before control of flooding
D. after stability is restored
[单项选择]To repair a small electrical motor that has been submerged in saltwater, you should （）.
A. wash it with fresh water and apply an external source of heat
B. renew the windings
C. send it ashore to an approved service facility
D. rinse all electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the motor with compressed air
[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
