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

[单选题]With VIT unit the timing of fuel injection of an engine can be regulated automatically according to the （）.A . ship draftB . pitchC . engine loadD . oil viscosity

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

[单选题]Camshafts are usually driven by timing gears or （）.A . push rodsB . chain drivesC . rocker armsD . flywheel

[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]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]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]Which timing mode is most appropriate for an ONS 15454 that has lost its BITS-1 and optical references?（）A . line timingB . loop timingC . internal timingD . through timingE . external timing

[单选题]The unit of electrical resistance is theA．ampereB．voltC．wattD．ohm

[单选题]The unit of electrical power is the _____.A．ampereB．kilovoltC．wattD．farad