Theory of Machine 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 12,000 r.p.m. 9,360 r.p.m. 5,367 r.p.m. 6,000 r.p.m. 12,000 r.p.m. 9,360 r.p.m. 5,367 r.p.m. 6,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism 1, 3 and 4 1, 2 and 4 1, 2 and 3 2, 3 and 4 1, 3 and 4 1, 2 and 4 1, 2 and 3 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed. Ratio Difference Product Sum Ratio Difference Product Sum ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is None of these 180° and 360° 0° and 90° Both (A) and (B) None of these 180° and 360° 0° and 90° Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The flank of the tooth is the surface of the tooth __________ the pitch surface. At None of these Above Below At None of these Above Below ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because The Ackerman steering gear consists of turning pairs Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels Both (A) and (B) The Ackerman steering gear is most economical The Ackerman steering gear consists of turning pairs Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels Both (A) and (B) The Ackerman steering gear is most economical ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS