Theory of Machine If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 180° 90° 0° 360° 180° 90° 0° 360° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because Bearing centre line coincides with the axis The system is unbalanced The shafts are rotating at very high speeds Resonance is caused due to the heavy mass of the rotor Bearing centre line coincides with the axis The system is unbalanced The shafts are rotating at very high speeds Resonance is caused due to the heavy mass of the rotor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve. Less than None of these Greater than Equal to Less than None of these Greater than Equal to ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following mechanisms produces mathematically an exact straight line motion? Grasshopper mechanism Watt mechanism Tchebicheff mechanism Peaucellier's mechanism Grasshopper mechanism Watt mechanism Tchebicheff mechanism Peaucellier's mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The partial balancing means Best balancing of engines Balancing partially reciprocating masses Balancing partially revolving masses All of these Best balancing of engines Balancing partially reciprocating masses Balancing partially revolving masses All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A watt's governor can work satisfactorily at speeds from 100 to 200 r.p.m. 80 to 100 r.p.m. 60 to 80 r.p.m. 200 to 300 r.p.m. 100 to 200 r.p.m. 80 to 100 r.p.m. 60 to 80 r.p.m. 200 to 300 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
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