The total starting air capacity required for reversible main engines is to be sufficient for at least （）.

[单选题]During the inspection, the starting air valves should be closed （） the engine from turning.A . to increaseB . to speed upC . to preventD . to reduce

[单选题]B．efore starting the engine, the air bottle should be ____.A．pumped upB．loadedC．dischargedD．closed

[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.A . justB . nearlyC . merelyD . already

[单选题]Before starting the engine the air bottle should be （）.A . pumped upB . loadedC . dischargedD . opened

[单选题]During （）, the starting air valves should be closed to prevent the engine from turning.A . overhaulB . runningC . blowing downD . All of the above are correct

[单选题]The starting air system usually has （） to prevent starting if anything is not in order.A . stop valvesB . interlocksC . non-return valvesD . air vent

[单选题]On traffic lanes where demand is strong and plane capacity is limited， the

[单选题]On traffic lanes where demand is strong and plane capacity is limited， the

[单选题]In the event of the cylinder starting valve leakage （） would pass into the air pipes and ignite the oil deposited.A . cooling waterB . vapor from the boilerC . starting airD . hot gase

[单选题]Starting from 22, ________.[A] one will obtain more basic rights[B] the older one becomes, the more basic rights he will have[C] one won’t get more basic rights than when he is 21[D] one will enjoy more rights granted by society