The quantity of oil injected into the cylinder can be regulated （）.

[单选题]The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.A . acidsB . additivesC . heatD . gear

[单选题]The amount of fuel injected in a particular time, or degree, of crankshaft rotation is termed （）.A . meteringB . timingC . rate of injectionD . rate of distributio

[单选题]When fuel is injected late into a diesel engine cylinder_______.A．the exhaust will be clearB．fuel consumption will be lowC．all the fuel will be burned at top dead centerD．fuel consumption will be high

[单选题]F．uel droplets injected into a diesel engine cylinder must have adequate penetration to ____.A．prolong the ignition delay periodB．ensure the beginning of fuel injectionC．thoroughly utilize the air chargeD．allow controlled fuel combustion

[单选题]Generally speaking，the fuel injected into a marine diesel engine combustion chamber is ignited by（）.A . spark plugsB . glow plugsC . heat of compressionD . a magneto

[名词解释] CY-CY

[单选题]If quantity supplied of refrigerators exceeds quantity demanded at the curr

[单选题]（）is the operation to check the quantity, quality and package of the goods according to the contract and the specific standard.A . InspectionB . ExaminationC . ControlD . Test

[单选题]In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.A . a service tankB . a collecting tankC . a sumpD . a settling tank

[单选题]The quality of the fuel oil and lube oil （）, Im afraid.A . has much to do with the operation of the engine and its lifeB . have much to do with the operation of the engine and its lifeC . has much doing with the operation of the engine and its lifeD