Theory of machines - Engineering

Q1:

A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

A 5367 r.p.m.

B 6000 r.p.m.

C 9360 r.p.m.

D 12000 r.p.m.

ANS:A - 5367 r.p.m.

Explanation: No answer description is available.