Alarge,low-speed,crosshead,mainpropulsiondieselengineusingresidualfueloilsmusthaveacylinderoilhavinga（） A: lowTBNvalue B: highalkalinereserve C: lowflashpoint D: highpourpoint

In a four-stroke engine, the cycle of events is completed in four<br/>strokes of(()) A: the cylinder B: the crankshaft C: the piston D: the crosshead

Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the （） and a recirculation system lubricating the running gear and cooling the piston.

Modern engines are fitted with the continuous type of bearing. On the continuous type,the piston rod has a _____ which is bolted onto the top of the crosshead pin. A: nut B: screw C: foot D: cap