Sudden unloading of a diesel engine can cause().
A、decreased fuel efficiency
B、increased exhaust temperature
C、black smoke
D、overspeed trip
A、decreased fuel efficiency
B、increased exhaust temperature
C、black smoke
D、overspeed trip
A、sudden evaporation of wax crystals in the lubricant B、sudden evaporation of entrapped air in the lubricant C、release of refrigerant from the oil/refrigerant mixture D、release of dissolved lubricant from the refrigerant
A、which the sudden operational failure B、that the sudden operational failure C、the sudden operational failure D、the sudden operational failure of which
A、The solenoid valves directs high pressure gas to the valve lifting device raising the suction valve off its seat and causing one specific cylinder to become unloaded B、The solenoid valves directs high pressure gas to the underside of the unloading piston, causing it to rise and allowing the recirculating ports to be opened C、When the solenoid valve becomes energized, the valve ports become closed, allowing discharge pressure to build up above the piston, shifting it and causing it to unload D、The solenoid valve allows the refrigerant to pass from the suction chamber to the top of the unloader piston, causing the piston to lift and unload the cylinder
A、act of God B、the Queen's enemies C、inherent vice in the goods D、the negligence of the owner of the goods
A、loss of field excitation B、total loss of load C、large increase in load D、loss of steam pressure