Q.13 The rotor shaft of a large electric motor supported between short bearings at both deflection of 1.8mm in the middle of the rotor. Assuming the rotor to be perfectly balanced and supported at knife edges at both the ends, the likely critical speed (in rpm) of the shaft is
 

(A) 350

(B) 705

(C) 2810

(D) 4430

Hint: 

Did not found what you are looking for, Ask your doubt or Help by your contribution

Enter your search keyword:

Search form

Wait!

Here is a chance to join biggest community of technical Students,
Tutors with FREE learning resources and so much more.
It takes less then 60 seconds.