The process of loop scavenge is that the exhaust will be via ports （） the air ports and controlled by the same piston.

[单选题]If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to_______the engineA．stopB．startC．speed u

[单选题]The indications of a scavenge fire are excessive black smoke, （） and peeling from scavenge trunking.A . turbo-chargers surgeB . spark seen from the drainsC . paint blisteringD . all above are right

[单选题]If scavenge box should be hot, _______would occur.A．seized pistonB．defective atomizerC．scavenge fireD．too much L.O

[单选题]To avoid scavenge fires occurring the engine timing and equipment maintenance （）.A . should be correctly carried outB . should correctly be taken placeC . should carded with careD . must to carry out with great care

[单选题]To avoid scavenge fires （） the engine timing and equipment maintenance should be correctly carried out.A . occurredB . occurringC . not happeningD . occur

[单选题]Increased air （） will raise scavenge efficiency and allow a greater mass of air to be compressed； more fuel may now be burned giving an increased power.A . specific volumeB . densityC . viscosityD . calorific value

[单选题]Once a scavenge fire is detected the engine （）.A . will be speeded upB . should be slowed downC . must slow downD . have to be slow dow

[单选题]The term, (74) loop, refers to a loop that is contained within another loop.(74)A.programB．nestedC．statement,D．Network

[名词解释] 环线、半环线 loop，half-loop

[单选题]Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.A . to protectB . to guardC . to maximizeD . to minimize