With VIT unit the timing of fuel injection of an engine can be regulated automatically according to the （）.

[单选题]With （） unit the timing of fuel injection of an engine can be regulated automatically.A . MBTB . MEGC . VSGD . VIT

[单选题]The major cause of fuel pump and injection system problems is _____.A．improper adjustmentsB．contaminated fuelC．kinked fuel linesD．excessive engine vibration

[单选题]VIT means （）A . variable injection timingB . variable inlet tonnageC . vertical incoming tonnageD . vertical inlet tank

[单选题]Fuel injection systems meter fuel, atomize fuel, and （）.A . create turbulence in the combustion chamberB . aid in completing cylinder scavengingC . inject fuel at the proper timeD . minimize fuel penetration into the cylinder

[单选题]During the fuel injection period, fuel pressure must exceed cylinder gas pressure to （）.A . ensure penetration and distribution of the fuel in the combustion chamberB . ensure the needle valve is flushed clean during each injectionC . prevent combust

[单选题]The basic unit of measure in a computer system is the ( ) .It is thesmalles

[单选题]Fuel injectors used in heavy fuel oil systems are usually provided with cooling to reduce（）.A . cold corrosion of the nozzlesB . fuel viscosity for better atomizationC . carbon accumulation on the nozzlesD . fuel detonation in the cylinder

[单选题]With VIT the start of injection may be （） as the engine load is reduced within a certain range.A . advancedB . retardedC . relayedD . cut off

[单选题]B．ecause the timing of injection is crucial, _____ mounted on the camshaft, which is driven by the crankshaft are used to operate the fuel pumps, one of which is provided for each cylinder.A．gearsB．ramsC．barrelsD．cams

[单选题]哪种Vit参与氨基转移（）A . 硫辛酸B . VitB1C . VitB2D . 泛酸E . VitB6