更多"A special device that，when fitted i"的相关试题:
[单项选择]A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame（）.
A. stopper
B. screen
C. filter
D. restrictor
[单项选择]An overspeed safety device is usually fitted to a generator engine for （） in the event of overspeed.
A. cutting power off the engine
B. increasing the fuel pump setting
C. braking the crankshaft
D. stabilizing the ship speed
[单项选择]
When does auxiliary burner of rotary nozzle incinerator begin to work? （）
Ⅰ.hen igniting
Ⅱ.he sludge for dealing with is too much
Ⅲ.efore stopping incinerator
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅲ
C. Ⅱ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ
[单项选择]When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be（）
A. disengaging the clutch firstly, then stopping the main engine
B. stopping the main engine firstly, then disengaging the clutch
C. stopping the cooling water pump firstly, then stopping the main engine
D. stopping the main engine and disengaging the clutch at the same time
[单项选择]Insufficient end clearance on newly fitted piston rings in a diesel enginewill cause the rings to（）
A. jam in the most worn part of the cylinder when the rings expand
B. break in the most worn part of the cylinder when the rings expand
C. wear eccentrically on the side opposite the end gap
D. overheat and jam at the top center on the combustion stroke
[单项选择]Safety shackles are fitted with（）.
A. a threaded bolt
B. a round pin，with a cotter pin
C. a threaded bolt，locknuts，and cotter pins
D. round pins and locknuts
[单项选择]Preventer bars are fitted on lifeboat releasing hooks to prevent（）.
A. the falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered
B. operation of the release lever until the boat is waterborne
C. the falls from rehooking after they have been released
D. accidental unhooking when the falls become slack
[单项选择]Most hydraulic steering gears are fitted with relief valves which（）
A. function when the rudder is amidships
B. relieve excess whip pressure from the hydraulic oil system
C. protect the piping assembly from external rudder shock
D. relieve excessive telemotor pressure
[单项选择]Improperly fitted piston rings in a diesel engine can cause（）
A. excessive lube oil consumption
B. lower than normal lube oil temperature
C. higher than normal exhaust back pressure
D. excessive crankshaft end play
[单项选择]The connecting rob is fitted between the crosshead and the crankshaftIt transmits the firing force, and together with the crankshaft convert the （） motion to a （） motion.
A. rotary；reciprocating
B. up and down；fore and aft
C. fore and aft；up and down
D. up and down；rotary
[单项选择]Air chambers are usually fitted to reciprocating pumps in order to （）.
A. increase discharge pressure
B. increase suction vacuum
C. develop pulsation flow
D. keep a steady rate of flow
[单项选择]Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinderIf the cooling water temperature from all cylinders begins to rise above normal, you should suspect （）
A. increase blow-by in all cylinders
B. incomplete combustion in all cylinder
C. overloading in all cylinders
D. insufficient fuel delivery to all cylinders
[单项选择]The connecting rod is fitted between the crosshead and the crankshaftI t transmits the firing force, and together with the crankshaft converts the （）motion to a （）motion.
A. rotary；reciprocating
B. up and down；fore and aft
C. fore and aft；up and down
D. up and down；rotary
[单项选择]The bridge is fitted（）two radars.
A. before
B. with
C. from
D. on
[单项选择]Battens are fitted in cargo holds across the frames of the vessel from the turn of the bilge upward. The purpose of these cargo battens is（）.
A. for securing a snatch block when snaking cargo into the wings of the hold
B. to prevent cargo from coming in contact with the vessel's frames or shell plating
C. tp prevent fittings to which cargo lashing may be secured
D. to support the dunnage floors which are laid down between tiere of cargo
[单项选择]The source of energy fitted in GMDSS complying vessels must be（）.
A. the main source of energy
B. emergency source of electrical power
C. the reserve source of energy
D. all of above
