【单选题】Two air compressors are provided for the starting air system and should be capable of ________.
A.
charging the starting air containers within one hour
B.
providing the minimum quantity of starting air at all times
C.
supplying all the air necessary to start both the main engine and an auxiliary at the same time
D.
topping off all receivers at the required design pressure
【单选题】Two air compressors are provided for the starting air system and should be capable of ______.
A.
charging the starting air containers within one hour
B.
providing the minimum quantity of starting air at all times
C.
supplying all the air necessary to start both the main engine and an auxiliary at the same time
D.
topping off all receivers at the required design pressures
【判断题】相较于其他绘画,漫画的用色应该更加自由和大胆。()
【单选题】The primary task of the compressed air system is to deliver the starting air necessary for _____.
B.
starting the emergency electric alternator
C.
driving the main turbine
D.
driving the turbocharger
【单选题】When the starting air valve closes on one cylinder, another starting air valve has _____ opened on another cylinder whose piston has just commenced its downward stroke.
【单选题】The starting air system usually has _____ to prevent starting if anything is not in order.
【单选题】Pump up the starting air reservoirs to their maximum pressure and ______the air reservoirs and air system.
【单选题】Two air compressors are provided for the starting air system and should be capable of ____.
A.
charging the starting air containers(空气瓶)within one hour
B.
providing the minimum quantity of starting air at all times
C.
supplying all the air necessary to start both the main engine and an auxiliary at the same time
D.
topping off all receivers at the required design pressures