The crankshafts on the large modern 2-stroke crosshead engines are ()big ()makes as a single unit and so are constructed by joining together individual forgings.
- Aenough;to
- Btoo;to
- Csuch;so
- Dso;that
The crankshafts on the large modern 2-stroke crosshead engines are ()big ()makes as a single unit and so are constructed by joining together individual forgings.
1、What is the speed of the crankshaft in
What is the speed of the crankshaft in a four-stroke/cycle engine when the camshaft is turning at 750 rpm?()A375 RPMB500 RPMC750 RPMD1500 RPM
2、Small crack in the crankshaft bearing
Small crack in the crankshaft bearing surface of a diesel engine are an indication of()Acorrosion frettingBinsufficient lubricationCabnormal wearDfatigue failure
3、The modern ()and ()are the descendants
The modern ()and ()are the descendants of the Gaels of the Celtic tribes.
4、The children on the large farms far aw
The children on the large farms far away______.A always went to school togetherB could have lessons on the radiosC listened to teachers at schoolD built radio schools with teachers
5、Today, crankshafts for large 2-stroke
Today, crankshafts for large 2-stroke crosshead engines are of the ()type.Asemi-builtBbuilt-upCsolid forgedDindividual forged
6、The crankshaft receives and transmits
The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating ().Abending stresses弯曲应力Btorsion stresses扭转应力Cshear stresses剪应力DAll of the above