_ In ______ machines, the size of the shaft is decided by the critical speed which depends on the deflection of the shaft.$?

_ In ______ machines, the size of the shaft is decided by the critical

1.	_ In ______ machines, the size of the shaft is decided by the critical speed which depends on the deflection of the shaft.$?
A.	small
B.	medium
C.	large
D.	any of the above
Answer» D. any of the above