How are the pressure and temperature affected in a diesel engine cylinder during compression?（）
1、（） is the control of temperature and h
（） is the control of temperature and humidity in a space together with the circulation, filtering and refreshing of the air.ARefrigerationBAir conditioningCVentilationDHeating
2、How long must the records of tests and
How long must the records of tests and inspections of fire fighting equipment on board a ship be retained on board?（）A6 monthsB1 yearC3 yearsDUntil the next inspection for certificatio
3、The fuel oil pressure and forced draug
The fuel oil pressure and forced draught pressure should be matched to ensure good combustion with a full steady flameIn the sentence the word “match” means （）Ajoin withBmixCbe equal toDbe constant
4、High firing pressures and a low exhaus
High firing pressures and a low exhaust temperature in a diesel engine may result from （）.Adecreased piston to cylinder head clearanceBincreased exhaust system back pressureCearly fuel injection timingDlow scavenge air temperature
5、（） are used to limit the pressure in a
（） are used to limit the pressure in any particular portion and mainly control the pressure after the valve.ARelief valvesBCheck valvesCSafety valvesDReducing valve
6、How many subnetworks and hosts are ava
How many subnetworks and hosts are available per subnet if you apply a /28 mask to the 210.10.2.0 class C network?（）A 30 networks and 6 ho...