A . Combustion does not begin until the piston starts down on the power stroke
B . Maximum combustion pressure is reached before TDC
C . Turbulence in the cylinder causes a delay in ignition
D . Maximum cylinder firing pressure is not developed until the piston passes TDC
[单选题] Which statement about the preliminary design stage of a software development project is true? (75) .(75)A.The preliminary design is an internal document used only by programmersB.The preliminary design is the result of mapping product requirements i
[单选题]In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?A.Noise coming from that air starting valveB.Continuous operation of the starting air compressorC.Zero air pressure in the air starting
[单选题]Which statement about the theories of the term structure of interest rates
[单选题]_____ the engines, the diesel engine is ____ used engine on boardA.Between / more commonlyB.Among / the most commonlyC.Between / not more commonlyD.Among / not the most commonly
[单选题]The heart of the diesel engine is the () where the fuel is burnt and the power developed.A . crankcaseB . cylinderC . scavenge boxD . pisto
[单选题]The diesel engine is a type of ().A . turbine engineB . gas turbineC . steam engineD . internal combustion engine
[单选题]Which statement is NOT true?A.While displacement pump works, volume of the working chamber will increase and decrease alternatelyB.A gear pump always has two gearsC.Any vane pump will have a rotor within a ringD.A balanced vane pump has two outlet po
[单选题]Which statement is NOT true?A.In a simple vane pump, the rotor and cam ring are exactly concentricB.Balanced vane pump has an elliptical cam ringC.Liquid in both gear pump and vane pump are forced out to the outlet.D.Balanced vane pumps can work at a
[单选题]Which statement is True?A.The Port State Control Officer has no right to check a SSPB.The Master has the right to refuse the request from a Port State Control Officer to check the confidential part of the SSP on boardC.The Confidential part of a SSP
[单选题]Which of the following statement is NOT true?A. When you run out of money, you can ask your partner to call back.B. Telephone books in the US have different colors.C. The state of Oregon has several area codes.D. An area code is necessary in making a